6DE-18

INSTRUCTION MANUAL
( OPERATION )

V08
● Replacement Parts
. Hazards and nonconformities of imitation parts
<Use of imitation parts causes accidents.>

1. Recent engines have compact bodies and high power, and are designed to prevent fuel
deterioration and to reduce NOx discharge. Even if imitation parts are similar in shape
to the genuine parts, the use of imitation parts will degrade the engine performance
because of their fragile materials and low machining accuracy. Since the service life of
such parts is short, the engine must be maintained more frequently.
2.If imitation parts are used for the engine conforming to NOx Technical Code, the certificate
(EIAPP) may lose its validity, and operation of the engine may be inhibited.
3. If you use imitation parts, you will not be supplied with parts improved in quality and
performance.
4. If imitation parts are used, it may be difficult to make insurance claims for the engine
when any accident occurs.
5. We take no responsibility for the engine in which imitation parts are used.

Daihatsu Diesel supplies reliable engines. Use genuine parts to

operate your engine safely.

http://www.dhtd.co.jp

Head Office 1-30, Oyodo Naka 1-chome, Kita-ku, Osaka, 531-0076 Japan
TEL : 81-6-6454-2393 FAX : 81-6-6454-2682
Tokyo Office 2-10, Nihonbashi-Honcho 2-chome, , Chuo-ku, Tokyo, 103-0023 Japan
TEL : 81-3-3279-0827 FAX : 81-3-3245-0359
Moriyama Division 45 Amura-cho, Moriyama-city, Shiga, 524-0035 Japan
TEL : 81-77-583-2551 FAX : 81-77-582-5714

Taiwan Office c/o Marine Technical Industries Co., Ltd.

No.14 Tai-Tang RD, Lin-Hai Industrial Zone, Kaohsiung, 812 Taiwan
TEL : 886-7-803-1082 FAX : 886-7-801-9179

Daihatsu Diesel (Europe) Ltd. Floor 28,One Canada Square,Canary Wharf,London E14 5AA, U.K.
TEL: 44-20-3871-5000 FAX: 44-20-7512-9291

Daihatsu Diesel (AMERICA), Inc. 380 N Broadway, Suite 302, Jericho, N.Y. 11753, U.S.A.
TEL : 1-516-822-3483/4 FAX : 1-516-822-3485
Daihatsu Diesel (ASIA PACIFIC) Pte.Ltd. 16 Collyer Quay, Income at Raffles #29-02, Singapore 049318
TEL : 65-6589-9510 FAX : 65-6536-4964
Daihatsu Diesel (SHANGHAI) Co.,Ltd. Room A-B Floor 14, Huamin Empire Plaza, No. 728 Yanan Rd (w), Shanghai, China
TEL : 86-21-6225-7876/7 FAX : 86-21-6225-9299

201706
 TYPE DE ENGINE
HOW TO ORDER PARTS

For the TYPE DE engine, we have newly adopted a parts control system. To properly control the parts
at the production stage and delivery stage, we have stored the data of each engine, such as specifica-
tions and applicable parts, in the database.
When ordering parts, engine number and parts code ( 8-digit ,10-digit or 12-digit codes) are requested.
Before ordering parts, be sure to check your engine number so that we can promptly send you the right
parts.

Example: How to order parts

Before ordering a part, be sure to check the engine number, part name, and part code.
Engine number: DE618Z0001
(Check the engine number shown in the operation result sheet or the engine
number marked on the actual engine.)
Part name: F. O. NOZZLE
(Check the part name shown in the parts list.)
Part code: 06473-013
(Check the part code shown in the parts list.)

Notes regarding ordering parts:

Various parts of our engines are controlled for each engine. If you use the part once ordered to the
other type of engine, please contact our sales company, and ask whether the part can be used for the
other engine.
Use of the part for the other type of engine may not be possible due to difference in the specifications,
improvement of the part, etc.
If a wrong type of part is used for your engine, an unexpected problem may occur. In addition, if your
engine is conformed to NOx Technical CodeI, the certificate may lose its validity.
For the NOx control parts, be sure to write the parts replacement history in the engine record book to
properly control the parts.
 DE-18 INSTRUCTION MANUAL (OPERATION)
CHAPTER

INTRODUCTION 0

GENERAL 1

GENERAL CONSTRUCTION 2

ENGINE ADJUSTMENT STANDARDS 3

OPERATION 4

INSPECTION AND MAINTENANCE 5

FUEL OIL, LUBRICATING OIL AND COOLING WATER 6

TROUBLESHOOTING AND COUNTERMEASURES 7

◎ As for the disassembly, maintenance, assembly, and the parts to be
replaced, refer to the separately provided INSTRUCTION MANUAL
(MAINTENANCE) and PARTS LIST.

◎ Keep this Instruction Manual and the related documents (drawings, materials, etc.) in the
specified place so that the persons engaged in operation of the engine can refer to them
whenever necessary, and in the case that the supervisor of the engine is changed, be
sure that these documents, along with the duties, shall be transferred to the successor
without a fall.

DE-18 Z 12-01
 CHAPTER

ITEM
Contents
DE-18

Chapter 0 INTRODUCTION 0
1． Before Running Daihatsu Diesel Engine 0-1
2． Basic Information on Safety Operation 0-2
2.1 Safety Precautions 0-2.1
2.2 Safety Signs and Symbol Marks 0-2.2
2.3 Indication of Warning: Warning Labels 0-2.3
2.4 Indication of Warning: Warning Label Positions 0-2.4
3． Engine Conforming to NOx Technical Code 0-3
3.1 Outline 0-3.1
3.2 Matters Requiring Attention for NOx Regulation Compliance 0-3.2
4． General Information 0-4
4.1 Notation of Engine Type 0-4.1
4.2 Definition of Term 0-4.2
4.3 Unit 0-4.3

Chapter 1 GENERAL 1
1． Engine Specifications 1-1
2． Auxiliary Equipment 1-2
3． Engine Outline and Equipment Layout 1-3

Chapter 2 GENERAL CONSTRUCTION 2

1． Engine 2-1
2． Piping Systems 2-2
2.1 Starting Pneumatic System 2-2.1
2.2 Fuel Oil System 2-2.2
2.3 Lubricating Oil System 2-2.3
2.4 Cooling Water System 2-2.4
3． Engine Operation Control, Protective Device 2-3
3.1 Start Control 2-3.1
3.2 Stop Control 2-3.2
3.3 Engine Protection System 2-3.3

DE-18 A 12-03
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ITEM
Contents
DE-18

Chapter 3 ENGINE ADJUSTMENT STANDARDS 3

1． Operating Specifications 3-1
2． Valve Settings 3-2

Chapter 4 OPERATION 4
1． Precautions for Operating Engine 4-1
1.1 For Start 4-1.1
1.2 For Operation 4-1.2
1.3 For Stop 4-1.3
2． Preparation for Operation 4-2
2.1 Preparation for Daily Operation 4-2.1
2.2 Preparation for Initial Starting after Long Period of Disuse and Overhaul 4-2.2
3． Starting 4-3
3.1 Starting Procedure 4-3.1
3.2 Inspection and Check Items Immediately after Starting 4-3.2
4． Operation 4-4
4.1 Running-in 4-4.1
4.2 Warming up and Connecting Load to the Engine 4-4.2
4.3 Operation with Load (Normal Operation)） 4-4.3
4.4 Operation Using (for Heavy Fuel Oil Engines) 4-4.4

5． Special Operation 4-5

5.1 Low-Load Operation (Power Generator Specifications) 4-5.1

5.2 Allowable Operating Range (for Propulsion Engine) 4-5.2
5.3 Non-turbocharger Operation 4-5.3
5.4 Operation with Reduced Number of Cylinder 4-5.4
6． Stop 4-6
6.1 Normal Stop 4-6.1
6.2 Emergency Stop 4-6.2
6.3 Long-term Shutdown 4-6.3

DE-18 B 12-08
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ITEM
Contents
DE-18

Chapter 5 INSPECTION AND MAINTENANCE 5

1． Precautions for Inspection and Maintenance 5-1
1.1 Safety Precautions 5-1.1
1.2 Cautionary Items When Finishing Inspection and Maintenance 5-1.2
2． Inspection and Maintenance Table 5-2
3． Measurement and Adjustment 5-3
3.1 Exhaust Air Temperature 5-3.1
3.2 Pressure and Temperature of Each Part 5-3.2
3.3 Maximum Combustion Pressure 5-3.3
4． Inspection and Maintenance 5-4
4.1 Inspecting Parts around Intake and Exhaust Valves, and Adjusting Valve End Clearance 5-4.1
4.2 Inspection and Maintenance of Fuel Oil Injection Valve 5-4.2
4.3 Cleaning Filters 5-4.3
4.4 Cleaning Turbocharger Compressor 5-4.4
4.5 Cleaning Turbocharger Turbine 5-4.5
4.6 Measuring Crankshaft Deflection 5-4.6

Chapter 6 FUEL OIL, LUBRICATING OIL AND COOLING WATER 6

1． Fuel Oil Control 6-1
1.1 Fuel Oil Selection 6-1.1
1.2 Fuel Oil Control 6-1.2
2． Lubricating Oil Control 6-2
2.1 Lubricating Oil Selection 6-2.1
2.2 Lubricating Oil Control 6-2.2
3． Cooling Water Control 6-3
3.1 Cooling Fresh Water (Raw Water) 6-3.1
3.2 Antirust 6-3.2
3.3 Cooling Water Control 6-3.3

DE-18 A 14-03
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ITEM
Contents
DE-18

Chapter 7 TROUBLESHOOTING AND COUNTERMEASURES 7

1． Precautions for Troubleshooting 7-1
2． Troubleshooting and Countermeasures 7-2
2.1 Starting Defect 7-2.1
2.2 Engine Revolution is Not Smooth 7-2.2
2.3 Insufficient Output 7-2.3
2.4 Abnormal Exhaust Gas Temperature or Maximum Combustion Pressure 7-2.4
2.5 Abnormal Exhaust Gas Color 7-2.5
2.6 Abnormal Noise / Abnormal Vibration 7-2.6
2.7 Sudden Engine Stop 7-2.7
2.8 Unable to Stop Engine 7-2.8
2.9 Overspeed 7-2.9
2.10 Low Lubricating Oil Pressure 7-2.10
2.11 High Lubricating Oil Temperature 7-2.11
2.12 Low Cooling Water Pressure (Jacket Line) 7-2.12
2.13 High Cooling Water Temperature (Jacket Line) 7-2.13
2.14 Low Cooling Water Temperature (Jacket Line) 7-2.14

DE-18 Z 12-01
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Introduction
0
ITEM
Before Running Daihatsu Diesel Engine DE-18 1
0． Introduction
(1) Only skilled operators who have carefully read and fully understood the instruction manual
should operate, inspect and service this machine.
Operation, inspection or servicing by persons inadequately familiar with the machine may
0
result in personal injury, equipment damage or environmental hazard.
(2) No responsibility shall be assumed whatsoever for product damage or any associated fires,
oil spills or other environmental hazards, personal injuries, property damage or economic
losses caused by the use of non-genuine parts or operation, inspection or servicing that devi-
ates from the instruction manual.
(3) We shall repair new parts or replace any flawed parts made or sold by us, however no com-
pensation shall be provided for damage to any equipment not of our manufacture or cargo, or
personnel, fire-fighting, towing or other expenses arising from the use of such flawed parts or
fowled fuel, lubricant, cooling water or other medium.
(4) This instruction manual is subject to change without notice.

0-1．Before Running Daihatsu Diesel Engine

This instruction manual describes the proper operation procedure of the DE-18 engine, its daily
maintenance and inspection procedures, and other necessary information on the engine.
To maintain the engine in good operating condition and ensure that it provides the specified
performance, be sure to read through this manual and become sufficiently familiar with the
proper procedures before operating the engine.
Strictly avoid use of the engine for a purpose other than the original purpose of use of the
engine or under conditions different from the specified conditions or handling against the
descriptions given herein, since such operation will cause accidents or troubles.

A． Each piece of the information is an important safety precaution and provided as a "Warning"
or "Caution".

B．The features and structure of your engine may be different from those provided in this manual depend-
ing on the specifications of the engine delivered. In this case, the engine specifications and final documents
supplied separately have priority over this manual.

C．For the details on the following machine or device, see each instruction manual supplied with this manual:
1. Turbocharger 2. Governor 3. Lubricating oil cooler 4. Lubricating oil auto back wash filter
5. Lubricating oil bypass filter 6. Lubricating oil priming pump 7. Control equipment
8. Other special devices

D．Be sure to use the genuine parts of DAIHATSU DIESEL MFG. CO., LTD. or those specified in the parts
list. We will not guarantee the proper operation of the engine unless such parts are used.
For replacement of the parts or service on your engine, contact our Service Department or the nearest
DAIHATSU's branch office provided on the cover page.
Be sure to provide us with the "type and number of your engine" when contacting us.
If you use any parts other than the genuine parts or specified parts, unexpected troubles may be caused,
and you cannot make insurance claims owing to nonconformity to terms and conditions of damage
insurance.

DE-18 A 12-03
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Introduction
0
ITEM
Before Running Daihatsu Diesel Engine
1 , 2.1 DE-18 Basic Information on Safety Operation:Safety Precautions

E．To prevent environmental contamination, do not dispose of waste products, liquids, etc. thoughtlessly.
Be sure to entrust the disposal of such waste products, liquids, etc. to the authorized waste disposal
company.

0-2．Basic Information on Safety Operation

0-2.1 Safety Precautions

The diesel engine uses flammable oil. It has dangerous parts, such as the high-speed rotational
parts, the parts that become extremely hot, or the parts that are under high pressure fluid, dur-
ing operation.
Improper handling of the engine can result in serious injury or fatal accidents. Be sure to
observe the safety precautions provided in this manual.

A．Beware of Rotational Parts

This engine has the high-speed rotational parts.
Inadvertent contact of operators or objects with such parts can cause that the person to get
caught in the engine, or cause the chips of objects to fly in all directions.
a. Never attempt to touch the rotational parts such as the flywheel and couplings during operation. Also, be
sure to place the protective cover in place before operation.
b. Before starting operation, check that no person is around the engine. Warn any nearby person by signal-
ing that the engine is about to start operation.

B．Beware of Hot Parts

The engine parts are very hot during and immediately after operation. Touching them with bare
hands or skin can cause burns. Note that the exhaust manifold, turbocharger, cylinder head,
indicator valve periphery, air cooler inlet, and heated heavy fuel oil pipes become extremely hot.
a. Never attempt to touch any part of the engine with bare hand or skin during or immediately after operation.
b. Be sure to wear safety gloves or other protective wear for making measurements or inspection.
c. Allow the engine to sufficiently cool down before performing inspection or maintenance work.
C．Prevent Oil from Catching Fire
Fuel oil or lubricating oil coming in contact with extremely hot parts of the machine may catch fire.
a. Be attentive to oil leakage from the oil pipes during operation. If any leakage is found, immediately stop
the engine and eliminate the leakage.
b. Strictly observe the "NAKED FIRE FORBIDDEN" sign when adding fuel oil or lubricating oil.

If the engine is stopped due to failure or trouble, be sure to eliminate the cause of defect and
restore it to the normal operating condition before restarting the engine operation.

DE-18 A 12-03
 CHAPTER
Introduction
0
Basic Information on Safety Operation: ITEM

Safety Signs and Symbol Marks DE-18 2.2

0-2.2 Safety Signs and Symbol Marks

This instruction manual and warning labels affixed to the engine carry one of the following safety signs
and symbol marks:
0
A. Safety Signs and "Signal words"
："Warning": Precaution related to safety of personnel (Potential hazard which could result in death or
serious injury)
："Caution": Precaution related to safety of personnel (Potential hazard which may result in minor or
moderate injury)
："Precautions for handling": Information on handling of the engine to prevent damage

："Prohibition": Prohibited practice that can affect the safety of personnel and the engine

："Obligatory acts": Recommended practice or instruction to be followed to ensure safety of personnel

and the engine

B. Symbol Marks b. Prohibition Signs

a. Warning Signs
：Non-specific general prohibition
：General warning

：No Smoking
：Flammable → Fire

：Naked fire forbidden

：Explosive → Explosion or Bursting

：Do Not Touch

：Poisonous → Poisoning

：Voltage → Electric Shock c. Signs for Obligatory Acts

：Wear Eye Protection (safety goggles, etc.)

：High temperature → Burn

：Wear Head Protection (hard hat, etc.)

：Rotational/Moving Part → Getting Caught

：Wear Ear (Noise) Protection (ear plugs, etc.)

：Edge → Cut

：Wear Hand Protection (safety gloves, etc.)

：High-Pressure Fluid Jet → Injury

：Wear Foot Protection (safety shoes, etc.)

：High Location → Fall

d. Others
：See other pages in this manual or other
documents.

DE-18 Z 12-01
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Introduction
0
ITEM
Basic Information on Safety Operation:
2.3 DE-18 Indication of Warning: Warning Labels

0-2.3 Indication of Warning: Warning Labels

The warning labels used in our engines are basically as given below.

(1) (2) (3)

(4) (5)

(6) (7) (8) (9)

DE-18 Z 12-01
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Introduction
0
ITEM
Basic Information on Safety Operation:
Indication of Warning: Warning Label Positions DE-18 2.4

0-2.4 Indication of Warning: Warning Label Positions

For safety, the warning labels shown below are affixed to the engine. The numbers carried by labels corre-
spond to those given on Item 2.3 of Chapter 0. 0
If a label is broken or falls, replace it with a new label, and make arrangement so that it may be visible
clearly at any time.

(4) (6) (1)

(9) (5) (2) (3)

(8) (7)

Fuel test pump Hydraulic jack

DE-18 Z 12-01
CHAPTER
Introduction
0
ITEM
Engine Conforming to NOx Technical Code: Outline / Matters
3.1,3.2 DE-18 Requiring Attention for NOx Regulation Compliance

0-3. Engine Conforming to NOx Technical Code

0-3.1 Outline
A. The marine diesel engines to which the 13th rule "Nitrogen Oxides (NOx)" in Supplement VI "Rules to
Prevent Air Pollution by Ships" to MARPOL73/78 Treaty applies should conform to NOx Technical Code.
B. The engines conforming to NOx Technical Code are authorized as an engine group or an engine family,
and it is allowed to apply the engine parameter check method to them, when receiving the NOx discharge
inspection on board.
The engine parameter check method is a method for verifying that the engine components and setting
values conform to the requirements specified in the technical file, and does not require the measurement of
NOx discharge. To the engines that are not conforming to the requirements of the technical file, the engine
parameter check method cannot be applied. For such engines, the measurement of NOx discharge shall
be required.

0-3.2 Matters Requiring Attention for NOx Regulation Compliance

A. Introduction
NOx Regulation obliges the administration to execute Port State Control (PSC) and regular inspection to
confirm that the regulation is satisfied even after the ship has entered service. Please pay attention to the
following points and make sure to comply with the regulation and carry out inspections smoothly. Replacing
parts with those other than the authorized parts or performing remodeling or revision after adjustment would
invalidate the certificate.

B. Inspection Method
For confirmation of the NOx emission level of our engine, parameter checking method will be applied, in
principle, and the details will be confirmed as given in the method described in the technical file.
[Engine Parameter Checking Method]
Verification will be conducted to ensure that books stored onboard (Final Document (FD)) are available
and are appropriately managed. Replacement/remodeling and revision of engine components and set val-
ues (engine parameter) that would affect the NOx emission volume given in the record book of engine
parameter will be surveyed to verify that they are within the allowable range specified in the Technical File
(TF). Inspection will be conducted at the engine parameter site, as necessary, to verify that the parameters
are within the range specified in TF.

C. Books Stored Onboard

During the time this engine is mounted on a vessel which is under the authority of the relevant administra-
tion, it is obligated to keep the FD stored in the vessel. Documents obligated to be stored onboard under the
NOx technical code (2008), are as given below.
1) Engine International Air Pollution Prevention Certificate with Supplement (EIAPP Certificate)
2) Technical File (TF)
3) Record Book of Engine Parameters
4) Documents on operation values based on load characteristics of engine or an engine parameter list
(Test records of the diesel engine at shop trial and/or Engine Parameter Inspection Record for NOx
Verification) (PIR)

5) Technical Documentation on remodeling of components [If applicable] ( ：“Technical File”)

DE-18 Z 12-01
 CHAPTER
Introduction
0
ITEM
Engine Conforming to NOx Technical Code:
Matters Requiring Attention for NOx Regulation Compliance DE-18 3.2

D．Inspection Items (Engine Parameters)

Engine components and set values that affect the NOx emission are defined as follows:
Components: Fuel injection valve, fuel injection nozzle, fuel injection pump, fuel injection pump plunger, 0
fuel cam, piston, cylinder head, turbocharger and air cooler.
Set value: Fuel injection timing

NOx technical code compliant engine is adjusted to comply with the regulation before shipment.
Therefore, do not perform revision after shipment as it would cause deviation from the set value given in
the technical file.

E. Inspection Procedure
1) Obtain confirmation on the latest engine parameters stated in the record book of engine parameters,
whether it complies with the parameters designated in TF or not.
For components, confirmation is conducted by checking the seals, but for the fuel injection timing,
confirmation is conducted by checking the injection timing of the actual engine.
2) In 1), if remodeling or revision in the engine parameters has been made exceeding the allowable range
approved by TF, it must undergo inspection to confirm that the Technical Documentation regarding such
remodeling or revision is stored along with TF, and that it has been approved by the administration.
3) An engine parameter inspection will be conducted on the actual engine, as necessary, to verify that it is
within the range specified in TF.

F. Revision Procedure of Components and Set Values That are Engine Parameters
Parts that are specified as engine parameters are parts that relate to the NOx emission rate. When replac-
ing them or performing service on them, parts with prescribed seals attached shall be used and adjusted to
the prescribed set values.
If it has become necessary to change the use of parameter parts, please follow the procedure given
below.

F-1. Revision of Parts and Set Values within the Range Approved in TF
1) Check that the identification number of the parts or the set value to change is within the allowable range
specified in TF.
2) Fill in the Record Book of Engine Parameters.

F-2. Revision of Parts and Set Values or Remodeling of Parts not Approved in TF
Revision or remodeling can be performed only when the administration judges that engines that had parts
replaced or set values changed or had parts remodeled satisfy the NOx emission limit value and gives
approval. Please let us know, as we must issue necessary documents and consider obtaining approval from
the administration.

DE-18 Z 12-01
CHAPTER
Introduction
0
ITEM
Engine Conforming to NOx Technical Code:
3.2 DE-18 Matters Requiring Attention for NOx Regulation Compliance

G. How to Fill in the Record Book of Engine Parameters

During regular and interim inspections, parameter check is conducted to confirm that NOx parameter parts
replacement and adjustment are being conducted correctly. Therefore, it is obligated to have necessary
information on the date of execution and the details, in the order by date, each time replacement or remodel-
ing of components that fall within the engine parameters or adjustment and revision of set values are made.
~ Matters to be entered ~
1) Date of replacement (revision)
2) Place of replacement (revision) (cylinder No., etc.)
3) Seal of replacement part or the set value that was changed
4) Signature of responsible person
5) Reason of replacement, etc.

When Technical Documentation on remodeling of components has been issued, the reference number
of Technical Documentation and signature of inspector of NOx inspection shall be affixed.

Please refer to the technical code for the details of the above.

DE-18 Z 12-01
 CHAPTER
Introduction
0
ITEM
General Information:
Notation of Engine Type / Definition of Term / Unit DE-18 4.1～4.3

0-4．General Information
0-4.1 Notation of Engine Type 0
6 DE 18

•Number of cylinders
•Name of series
•Cylinder bore (cm) (actual size: 185 mm)

0-4.2 Definition of Term

Definitions of the terms used in this manual are fol-

lows:

•Rear side of engine: Output end side (flywheel side)

•Front side of engine: Opposite side to the output end

•Exhaust side: Exhaust manifold side (on the right

when seen from the output end)

•Pump side: Fuel injection pump side (on the left

when seen from the output end)

•Rotation: Clockwise rotation when seen from the out-

put end

•Cylinder and journal numbers: 1, 2, 3 …, starting

from the output end

0-4.3 Unit
Basically, SI units are used for the engine and in this manual.

DE-18 Z 12-01
CHAPTER
General
1
ITEM

1, 2 DE-18 Engine Specifications / Auxiliary Equipment

1．General
1-1．Engine Specifications

Note: (1) Since the output, which are marked with *, differ depending upon each specification, be minded to
enter the data after referring to the "Engine Specifications" and "Test Run Record".

1-2．Auxiliary Equipment

DE-18 Z 12-01
 CHAPTER
General
1
ITEM
Engine Outline and Equipment Layout DE-18 3

1-3．Engine Outline and Equipment Layout

DE-18 Z 12-01
CHAPTER
General Construction
2
ITEM

1 DE-18 Engine

2. General Construction
2-1. Engine

Governor

Gaue board

Starting air
Cam gear rotation valve
Crankshaft
Idle gear

Crank gear
Thrust
bearing metal

Mainbearing metal
Auxiliary
drive gear

DE-18 Z 12-01
 CHAPTER
General Construction
2
ITEM
Piping Systems: Starting Pneumatic System DE-18 2.1

2-2．Piping system
This section describes the typical piping systems of standard specifications. For more details,
refer to the piping systems included in the final documents.

2-2.1 Starting Pneumatic System

On the other hand, compressed air diverged
The starting pneumatic system piping area has from the starting air main pipe is fed to each cylin-
white headband coating applied. der in accordance with the ignition order from the
It is started by pilot/starting valve method using
compressed air.
starting rotation valve to open the starting valve
and depress the piston to rotate the engine.
2
The engine operating lever, the start button and In case of automatic starting, the control sole-
the starting valve are located on the front side of noid valve opens in accordance with the sequence
engine and the starting rotation valve is located on and starts the engine.
the rear side of engine. Also, for protection against Also, at the time of an emergency due to prob-
possible back flow of fuel gas, a check valve is lems such as loss of power, starting can be made
provided at the starting valve exit. by manually operating the starting solenoid valve.
Pressing the start button on the engine side or （ ：4-3.1 "Starting Procedure"）
on the operation panel (monitoring panel) activates
the starting solenoid valve, feeding control air to
the starting valve, causing main valve to open and
compressed air to reach the starting valve of each
cylinder head.

DE-18 A 16-04
CHAPTER
General Construction
2
ITEM

2.2 DE-18 Piping Systems: Fuel Oil System

2-2.2 Fuel Oil System

The oil pipe is provided with various heat insulat-
The fuel oil system piping area has red head-
ing arrangements such as steam trace or ragging,
band coating applied.
and is kept at a constant temperature. The lubrica-
Fuel oil system varies depending on the grade of
tion of the fuel injection pump is made by means of
the oil used, and a typical example of the fuel oil
fuel oil circulation system, and the plunger is lubri-
system for heavy fuel oil is as shown below.
cated by means of forced-feed lubrication system
When heavy fuel oil is used, oil must be heated using lubricating oil.
and kept at a constant temperature to maintain the
( : 2-2.3 "Lubricating Oil System"）
oil viscosity suitable for injection.
High-pressure oil fed by the fuel injection pump
Oil heated by the heater and pressurized by the is introduced into the fuel oil injection valve con-
fuel feed pump is transferred to the fuel oil injec- nector from the cylinder head side via the fuel
tion pump via the filter. Surplus of oil is returned to high-pressure block.
the inlet side of the oil feed pump via the pressure
control valve (relief valve), and is then circulated
again.

Leakage waste
oil tank

DE-18 Z 12-01
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General Construction
2
ITEM
Piping Systems: Lubricating Oil System DE-18 2.3

2-2.3 Lubricating Oil System Further, the lubricating oil is supplied as

branched from the same oil channel to the
The lubricating oil system piping area has yellow
camshaft, valve-operating swing arm, fuel oil injec-
headband coating applied.
tion pump tappet, around the rocker arm, and vari-
Lubricating oil transferred to the lubricating oil
ous gears.
cooler from the lubricating oil pump is regulated to
The lubricating pump, which is of a gear type
reach the specified temperature and pressure, by
provided with a safety valve, is installed on the front
means of the temperature control valve and pres-
side of the engine and is driven by the crankshaft.
sure control valve respectively, and the lubricating
oil is transferred to the oil channel of the engine The lubricating oil filter for the engine is auto-
frame via the filter. Then, from this oil channel, the matic backwashing type, and while engine running,
cleans sludge continuously captured by the filter
2
lubricating oil is supplied to the piston through the
holes of the connecting rod via each main bearing element.
and crank pin. Lubricating oil, which has circulated through and
has lubricated each part, returns to the base plate
of the engine (oil tank).

DE-18 Z 12-01
CHAPTER
General Construction
2
ITEM

2.4 DE-18 Piping Systems: Cooling Water System

2-2.4 Cooling Water System cooling each part, it returns to the fresh water cool-
er via the temperature control valve case installed
The fresh water cooler has blue headband coat-
at the cooling water engine outlet.
ing applied.
The temperature control valve in the tempera-
The cooling water system is a single fresh water
ture control valve case keeps the cooling water at
circulating system in which jacket line water (high
the specified temperature.
temperature) and cooler line water (low tempera-
ture) are mixed. Normally, fresh water is used as
B．Cooler Line
cooling water.
The cooler line is also a circulating system,
through which the low temperature fresh water
A．Jacket Line
coming out of the fresh water cooler is pumped by
The jacket line is a circulating system, through
the cooling water pump and is fed back to the
which a part of cooling water in the cooler line that
fresh water cooler via the lubricating oil cooler and
passed through the lubricating oil cooler and air
the air cooler.
cooler is pumped by cooling water pump and
enters into the engine cylinder jacket and after

DE-18 Z 12-01
 CHAPTER
General Construction
2
ITEM
Engine Operation Control, Protective Device: Start Control DE-18 3.1

2-3．Engine Operation Control, Protective Device

Control and protective devices such as the stop cylinder are activated by low-pressure control air.
This section describes a system generally used for the generator that is remotely controlled
for starting and stopping. The engine that is actually delivered may differ from the examples
shown in this section depending on the specifications, and therefore refer to the final docu-
ments, which are separately provided, for the details.
As for the starting air system (high pressure), refer to the previous section 2-2.1.

2-3.1 Start Control 2

A．For Generator c. Automatic Start
a. Remote Control For automatic start, a start command is
(1) For starting the engine by remote control, the automatically given according to the specified
operation mode must be changed to sequence, and the starting solenoid valve
"REMOTE" and the control lever must be set to (88V) operates to start the engine. The opera-
tion mode shall be set at "REMOTE".
the “RUN” position. The handle switch (HS) is
turned "ON" at this state, and if the turning
B．For Main Engine
safety switch (TC) is also turned "ON", the
a. Engine Side Start
engine is on standby and ready for operation. (1) For the engine side start, set the engine side -
(2) When a start command is given, the starting remote changeover valve at "LOCAL" and shift
solenoid valve (88V) operates and control air is the operation lever from the "STOP" position to
fed to the starting valve to open the main valve the "START" position.
and the starting air reaches the cylinder head (2) Pressing the start button will operate the start-
starting valve. ing solenoid valve (88V), feeding the operation
(3) Meanwhile, the same start command allows air to the starting valve to start the engine.
the fuel control solenoid (88L) to activate, caus- (3) When the engine reaches the specified rota-
ing control air to flow into fuel control cylinder, tion speed, the low-speed relay (14) is activat-
and allows the common rod to be held in posi- ed, canceling the start command.
tion, so that the fuel injection amount is con-
(4) When idle rotation becomes stable, shift the
trolled not to be excessive at the time of start-
operation lever from the "START" position to
ing.
the "RUN" position. In this state, the handle
(4) When the engine reaches the specified rota- switch (HS) turns "ON", configuring the protec-
tion speed, the low-speed relay (14) is activat- tive circuit and setting the engine to an operat-
ed, canceling the start command and resetting ing state.
the protective circuit, so that the engine is set
(5) Switching the changeover valve on the engine
to the operating state.
side to "LOCAL" makes it possible to perform
b. Engine Side Start engine operation by the bridge operation han-
For the engine side start, switching the dle.
operation mode to "LOCAL" and pressing the
start button on the engine side will operate the
starting solenoid valve (88V), feeding the con-
trol air to the starting valve to start the engine.

DE-18 Z 12-01
CHAPTER
General Construction
2
ITEM

3.1 DE-18 Engine Operation Control, Protective Device: Start Control

DE-18 Z 12-01
 CHAPTER
General Construction
2
ITEM
Engine Operation Control, Protective Device: Start Control
/ Stop Control / Engine Protection System DE-18 3.1～3.3

b. Remote Control (Starting from the Bridge)

(1) Placing the operation lever on the "RUN" posi-
(Please refer to the final documents regarding
tion in the "REMOTE" status, turns the handle
the destination-specific systems.)
switch (HS) "ON" and with this state, and with
As for the errors that may be led to serious acci-
the turning safety switch (TC) in "ON" state,
dents or failures, alarm is issued and emergency
standby conditions are met making it ready for
stop is made.
engine operation.
Each of the abnormal operation data or value is
(2) The operation handle of bridge being in the
detected by a switch or sensor, and the fuel shut-
"NEUTRAL" state is the very condition that
down solenoid valve is activated by the emergency
makes starting possible.
(3) When the start button on the operation panel
stop command, so that the engine is immediately 2
stopped.
is pressed, start command is given to energize
and operate the starting solenoid valve (88V),
feeding the control air to the starting valve via 2-3.3 Engine Protection System
the starting solenoid valve to start the engine. (Please refer to the final documents regarding
(4) When the engine reaches a specified rotation the destination-specific systems.)
speed, the low speed relay (14) is activated to As for the errors that may be led to serious acci-
cancel the starting command and restore the pro- dents or failures, alarm is issued and emergency
tection circuit, putting the engine into operation. stop is made.
Each of the abnormal operation data or value is
2-3.2 Stop Control detected by a switch or sensor, and the fuel shut-
When a stop command is given, the fuel shut- down solenoid valve is activated by the emergency
down solenoid valve (5V) operates to feed control stop command, so that the engine is immediately
air to the fuel control cylinder, turns the common stopped.
rod in the direction for stopping and stops the
engine. To stop the engine on the engine side,
shift the operating lever to the stop position.

Detection item Alarm Shutdown Location Remarks

Overspeed 12 Cam gear
Decrease of L.O. pressure PTQ 63Q2 Engine inlet Aiso used as the indicator
Increase of high-temperature Jacket inlet Aiso used as the indicator
cooling water temperature TRWS 26WH2
Increase of L.O. pressure TRQ Engine inlet Aiso used as the indicator
Increase of exhaust temperature TRT1 Turbocharger inlet Aiso used as the indicator
Oil leakage from fuel high 33F Oil leakage detector
pressure block
Decrease of L.O. level 33QL Engine L.O. tank
Decrease of high-temperature Aiso used as the indicator
cooling water pressure PTWH Jacket inlet
Increase of L.O. filter
differential pressure 63QDM L.O. filter

Table 2-3.1 Alarm and stop Items (Example)

DE-18 A 12-03
CHAPTER
General Construction
2
ITEM
Engine Operation Control, Protective Device:
3.3 DE-18 Engine Protection System

DE-18 Z 12-01
 CHAPTER
General Construction
2
ITEM
Engine Operation Control, Protective Device:
Engine Protection System DE-18 3.3

Differential pressure Intake air

of bearing lubricating temperature
oil filter
Increase of exhaust
gas outlet temperature
Decrease of
priming pressure Decrease of turbine
Decrease of jacket lubricating oil pressure
cooling water pressure
Stop for decrease of
lubricating oil pressure
Alarm for decrease of
lubricating oil pressure
Solenoid valve for
emergency stop
Solenoid valve for

2
starting
Solenoid valve for
stopping
Solenoid valve for
prevent starting

Increase of jacket
cooling water
temperature Increase of jacket
cooling water
temperature

Revolution
pick up
Increase of
fuel oil
temperature

High-pressure
pipe leakage
oil level

DE-18 Z 12-01
CHAPTER
Engine Adjustment Standards
3
ITEM

1 DE-18 Operating Specifications

3. Engine Adjustment Standards
3-1．Operating Specifications

O O
O O
O

Refer to
SHOP TRI
SHO TRIAL TES
TEST RECORDS
㽢112䡚115䠂

1.5䡚3.0 1.5

O 0.7䡚0.9 0.6
Refer to
SHOP TRI
SHO TRIAL TES
TEST RECORDS
0.5䡚1.0 0.35 O O
O O O
0.2䡚0.3 0.15 O O O

O Alarm setting value varies

0.4䡚0.5 depending on the engine
O O specifications.
O
O
Varies depending on
O O the turbocharger

O Consider static and dynamic

0.15䡚0.4 0.15 pressure due to tank head
O and pipe resistance.
O
O O
0.15䡚0.4 0.15
O O

45䡚55

O O 500 Refer to
SHOP TRI
SHO TRIAL TES
TEST RECORDS
Refer to
O SHOP TRI
SHO TRIAL TES
TEST RECORDS
Alarm setting value varies
O depending on engine
specification.

O
O 50䡚60 65
O O

O
Refer to engine specifications.
O
O
O O
36䡚38
O O

Note: (1) As for the alarm setting value and emergency stop value, each item of the pressure represents
the lower limit value, and each item of the temperature represents the upper limit value.
(2) Manometer, thermometer, and alarm/emergency stop device is provided depending on the indi-
vidual specifications.
(3) The actual data found on each engine may differ from those shown in the above table, and there-
fore refer to the Test Run Record Table (included in the final documents) for the details.

DE-18 D 17-06
 CHAPTER
Engine Adjustment Standards
3
ITEM
Valve Settings DE-18 2

3-2．Valve Settings

32.5∼ 33.5 MPa

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM Precautions for Operating Engine:
1.1～1.3 DE-18 For Start / For Operation / For Stop
4．Operation
4-1．Precautions for Operating Engine
4-1.1 For Start
A. Conduct preparations before start of the operation of engine, such as the inspection of oil, water,
and air levels, as well as proper operation of the valves without fault, and be minded to start opera-
tion only after it has been confirmed that all the conditions are ready for the start of engine.
B. It is extremely dangerous to start the operation of engine with the turning bar inserted in the fly-
wheel. Be minded to remove the bar and store it in a specified place after turning is completed.
C. Confirm that there are no working staff around the engine. When anyone is around the engine, be
minded to send a signal and confirm safety before starting the operation of engine.
4-1.2 For Operation
A. After the starting engine, inspect the following items, and confirm that the engine is in a good condi-
tion. In case that any defect is found, immediately stop the engine, so that the causes of the defect
can be investigated and the measures for recovery can be taken.
•Any abnormal data of the engines, such as inadequate lubricating oil pressure, inadequate exhaust temperature.
•Abnormal sound, excessive heating, etc.
•Any leakage from piping. (Particularly, leaks from oil piping results in fire.)
Be minded never to attempt to resume the operation of engine, until the causes of the problem or
defect are found and eliminated, and the engine is restored to the normal operating conditions.
B. Inadvertent contact of the body of working staff or objects with the rotating parts (e.g. flywheel and
coupling) results in dangerous accidents such as that the staff may be caught up or the chips of the
objects caught may fly out in all directions. Therefore, be minded that both person or object may not
touch the rotating parts.
Further, ensure that the protective covers of the rotating parts are always attached without fall.
C. During the operation of engine, particularly the following parts are extremely hot, and therefore there
is a danger of burn if touched with bare hands or skin. Be minded to wear safety gloves or protective
gears whenever maintenance or inspection works are conducted.
After the completion of the work, restore the lagging, heat covers, combustible oil splash preventive
means (splash proof tape), and protective covers that have been removed for maintenance and
inspection to their former state before performing operation.
• Exhaust pipe • Indicator valve (fitted to the cylinder head)
• Turbocharger • Fuel injection pump and high-pressure block
• Air cooler inlet duct • Fuel oil pipe (when heavy fuel oil is used)
• Cylinder head

4-1.3 For Stop

A. Make sure that the engine is stopped after load is taken off the engine, except in the case of emer-
gency.
B. In case that the engine is stopped in emergency stop, be minded never attempt to resume the oper-
ation until the causes of the problems is found and eliminated, and the engine is restored.
C. Do not open the frame for at least 10 minutes after the engine is stopped until it is fully cooled down.
Otherwise, there is a danger of explosion since the inflammable mist gas in the frame may catch fire.
D. The engine immediately after it is stopped is still extremely hot like during the operation, and there
may be danger of burn. Therefore, be minded to wear the protective clothing whenever inspection or
maintenance works is conducted without fail.

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Preparation for Operation: Preparation for Daily Operation DE-18 2.1

4-2．Preparation for Operation

It is essential to keep the engine in "Operable Conditions" when starting the engine.
Therefore, be sure to perform pre-operation inspections before the starting of engine, and take
proper corrective actions whenever any problem is found, to confirm that the engine is in nor-
mal conditions for operation, before starting the operation of engine.
If the engine is started without pre-operation inspections or preparations, it will not only cause
the troubles when starting the engine but also result in a sudden stop or damaging accidents.

4-2.1 Preparation for Daily Operation 2. Governor

Lubricating oil level, RHD6: 1.3 L
The number of the inspection items required
UG10: 1.4 L
before starting the operation varies depending
UG25+: 2.1 L
on how long the engine has been out of 3. Generator (for self-lubricating type)
operation. （ ：Separately provided
・Daily starting: shutdown for a short period of
"Generator Instruction Manual"）
time (within one month)
・Initial starting after installation, after shut-
down for a long period of time, or after over-
haul or maintenance.
The daily starting procedures are described
4
in this section. As for the latter (initial start-
ing), refer to the following section.
（ ： 4-2.2 "Preparation of Initial
Starting after a Long Period of Disuse and
Overhaul"）

A. Inspection before Start

a. Inspection and Feeding of Lubricating Oil
Check the oil level of the oil tank, and feed
new oil to the upper limit level of the oil gauge
(level gauge).
Further, in case that the lubricating oil is
found inadequate after examination, proceed
with makeup or replace the entire amount of
the lubricating oil.

（ ：6-2 "Lubricating Oil Control"）

1. Engine lubricating oil tank (Base plate common
to engines)
1100 L for lubricating oil
Note: The amounts of oil shown above may vary
depending on type.

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM

2.1 DE-18 Preparation for Operation: Preparation for Daily Operation

b. Inspection, Lubrication, and Operation

Check around the Fuel Regulation System
Manually lubricate the bearing and sliding parts of
pins, after checking for any loose or missing levers,
link pins, and bolts around the governor, common
rod, stop system, and fuel inspection pump rack.
Set the operation lever to the "STOP" position
and confirm that the rack scale is set at "0", and
then alternately move the lever to the "STOP" and
"RUN" positions, to confirm that the common rod
and pump rack moves smoothly.

c. Draining of Condensed Water from Intake

Air Inlet Duct
Open the drain cock of the intake air inlet duct of
the engine frame, and drain the condensed water
out. Confirm draining the condensed water or dis-
charging the air during engine running.

Always keep the drain cock of the engine

frame inlet air duct open about 30° (1/3), after
draining the condensed water by fully operat-
ing the drain cock.
In case that the humidity is high and the cool-
ing water temperature of the air cooler is low, a
large amount of condensed water will accumu-
late, any may cause corrosion or abnormal wear
on various parts flowing into the cylinder and
may cause serious accident as the case may be.

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Preparation for Operation: Preparation for Daily Operation DE-18 2.1

d. Draining Condensed Water from, and [Example]

Supply of Air to Air Tank 1. Valves for fuel oil inlet pipe and return pipe:
"Open"
In the case of automatically supplying air, first
drain the condensed water out of the starting air 2. Valves for cooling water (jacket and cooler),
tank and control air tank, and then confirm that air inlet pipe, and outlet pipe: "Open"
pressures in these tanks is above the lower limit 3. Valves for starting air pipe: "Closed" ("Open"
value. only when starting operation)
In the case of manually supplying air (including 4. Valves for operation air pipe: "Open"
manual starting of the air compressor), supply air 5. Valves for pipe coupling parts provided for
to the upper limit value. emergency, cleaning, etc.: "Closed"
Item Upper limit Lower limit
Starting air 3.0 MPa 1.5 MPa If the screw-tightening valves are used on
Control air 0.9 MPa 0.6 MPa the state of half-open, the valve handle may be
turned during operation and the opening
e. Checking and Feeding of Cooling Water degree may be changed, causing malfunctions.
Check the level of cooling water in the cooling Therefore, the valves should be fully turned
water tank, and if the level is at the lower limit, toward either "Open" or "Close" position, and
should be locked tightly.
4
supply fresh water up to the upper limit, and at the
same time add a proper amount of the additive. In the case that the valves must necessarily
be left half open for the sake of flow adjust-
Further, in the case that each property value of
ment, be sure to secure the valve handles
water reaches the limit level, replace the entire
with wire ring and the like, and fix them to pre-
amount of water.
vent their loosening and turning.
（ ：6-3 "Cooling Water Control"）
B. Standby Preparation (Engine on standby)
Cooling water inventory level inside Before entering the operation of engine, conduct
the engine 65 L the following preparations:

f. Draining of Fuel Oil and Supply of Oil a. Priming with Lubricating Oil
First drain fuel oil out of the fuel oil service tank, During engine stop, it is systematically controlled
and then check the oil level and supply oil up to for the motor-driven priming pump to work auto-
the upper limit of the level gauge. matically. Therefore, please check the lubricating
oil before starting.
g. Opening and Closing of Valves
Repeat "Fully open" and "Fully close" operation b. Turning or Air Running
of the valves on the piping system 2~3 times to Conduct turning or air running to discharge the
confirm that the valves move smoothly, and then dusts or water drops that collects in the cylinder
set the valves to the "RUN" position. while the engine is stopped.
Some of the examples are shown as follows. Further, when the engine is started after the
Since the layout positions of the piping systems inspection of various parts of the engine, or after a
and valves differ depending on each engine, refer long period of disuse of the engine, conduct turn-
to the piping diagrams of the final documents for ing before air running to confirm the safety.
the details.

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM

2.1 DE-18 Preparation for Operation: Preparation for Daily Operation

In the case that a large amount of water or

oil is accumulated in the cylinder due to the
leakage from the cylinder head or fuel injec-
tion valve, there is possibility of serious acci-
dents such as bending damage of the con-
necting rod by the water hammer.
If water or oil gushes out of the indicator
valve (on the cylinder head top surface) during
turning or air running, stop starting the engine,
investigate the causes, and take measures.

<<Turning>>

<Work Procedure>
(1) Conduct priming with lubricating oil.
(2) Set the operation lever to the "STOP" position.
(Do not inject fuel oil.)
(3) Set the indicator valve to the "Fully open"
position.
(4) Conduct turning 1 to 2 times, and confirm that
the engine rotates smoothly.

<<Air Running (abbreviated as Air Run)>>

<Work Procedure>
(1) Conduct priming with lubricating oil.
(2) Set the operation lever to the "STOP" position.
(3) "Fully open" the indicator valve
(4) Open the starting air valve and the control air
valve and press the start button on the engine
side.
The solenoid valve of the starter air relay
valve operates to feed starting air to the start-
ing valve to start the engine.
(5) Keep pressing the push button for 3 to 4 sec-
onds (for air run).
(6) Pressing the engine side start button stops the
engine.

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Preparation for Operation: Preparation for Daily Operation DE-18 2.1

e. Operation of Motor-Driven Pumps

In the case that the engine is equipped with the
If the engine starts its rotation during the
motor-driven cooling water pump and fuel oil feed
inspection of the inside of the engine or rotat-
pump, start the pumps 5 minutes before the start-
ing parts, it is extremely dangerous since the
ing of engine, and confirm that there is no oil leaks
working staff may be caught up or the objects
from various parts of piping.
that has been caught up may fly out in all
directions.
When conducting air run, strictly observe
the following points.
1) Confirm that the turning bar should be insert-
ed into the turning holder.
2) Send a signal to coworkers and confirm
safety before starting to press the push but-
ton of the starting operation.

c. Heating of Fuel Oil

(when heavy fuel oil is used.)
In the case that heavy fuel oil is used, heating 4
shall be made according to the following items:
(1) Turn on the fuel oil heating device.
(2) Operate the motor-driven oil feed pump.
（ ：6-1 "Fuel Oil Control"）

Heated heavy fuel oil, which is extremely

hot (100℃ or more), may cause burn if you
touch the piping or equipment on the fuel oil
system.
Therefore, in case of handling the equip-
ment of fuel oil system that carriers heat oil,
be sure to wear safety gloves and never touch
them with bare hands.

d. Turning "ON" of Protective and Alarm

Circuit
Turn "ON" the protective and alarm circuit on the
monitor panel, and confirm that the warning alarm
lights up.

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM
Preparation for operation: Preparation of Initial Starting
2.2 DE-18 after a Long Period of Disuse and Overhaul

4-2.2 Preparation for Initial Starting C. Opening, Cleaning, and Cleansing of Filters
after Long Period of Disuse and Dust or foreign objects, which collected into pip-
Overhaul ing during transportation, and outfitting or installa-
tion, are accumulated in the filters of the engine
Since the engine is not ready for immediate
inlet.
starting of operation after installation, shutdown
Open the following filters, and cleanse the inside
and overhaul for a long period or maintenance, it is
and the elements of the filters:
particularly necessary to thoroughly conduct the
1. Starting air filter and control air filter
preparations for operation.
2. Fuel oil filter (including oil filters on the outside
Before the preparation for daily operation, con-
of the engine)
duct the following preparation works (4-2.1).
3. Lubricating oil filter (filters on the engine, for
A. Inspection of Crankcase and Cylinder Liner, T/C)
and Supply of Oil 4. Cooling water filter
a. Inspection of the Inside of Crankcase （ ：5-4.3 "Cleaning Filters"）
Open the side cover of the engine frame, and
check and ensure that tools, waste clothes, foreign
matters such as desiccants are not left behind, and
that there is no rusting on the cylinder liners,
crankshaft, and so on.

b. Supplying Lubricating Oil to Cylinder Liner

After a long period of disuse, the various parts of
engine are not covered with sufficient amount of
lubricating oil. Particularly around the cylinder,
lubricating oil cannot be supplied sufficiently with
priming alone, and therefore supply lubricating oil
on the following procedure:
(1) Conduct turning to allow the pistons to move
Spray
upward, and apply lubricating oil to the lower (Spray
part of the cylinder liners by a spray device and lubricating
oil)
the like.
(2) Sequentially conduct the above procedure to
each cylinder.

B. Inspection of Connections and Joints

Inspect again the external connections or joints
to confirm that there is no connection that has
been forgotten to be tightened, or loosened joints.
If combustible oil splash preventive means
(splashproof tape) has been removed from joints,
newly treat the joints in the same manner after the
completion of the work.

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Preparation for operation: Preparation of Initial Starting
after a Long Period of Disuse and Overhaul DE-18 2.2

D. Priming with Lubricating Oil and Exhausting

Air
Conduct priming with lubricating oil and exhaust-
ing air in the following procedure:
a. Run the lubricating oil priming pump for 5 min-
utes. While the pump is operating, open the indi-
cator valve (on the cylinder head top surface) to
perform turning two or three times, and check for
leakage of fuel oil, lubricating oil and water from
the indicator valve.

4
b. At the same time, open the each cover and
check the dripping-down conditions of lubricating
oil from each part.
1. Engine frame: Main bearing, crank pin, piston
(cooling chamber), and piston pin
2. Cam case: Cam bearing, swing arm, and tappet
3. Cylinder head: Rocker arm and valve retaining tee
c. Operate the priming pump, open the air vent
valve for lubricating oil filter, and drain lubricat-
ing oil until air bubbles in the oil are completely
vanished. Take care not to splash the oil.
d. Check that there is no oil leakage from various
parts of the piping during priming.
E. Priming with Fuel Oil and Exhausting Air
Conduct priming with fuel oil and exhausting air
bubbles in the following procedure:
(1) Operate the fuel oil feed pump for the motor-
driven oil feed pump attached type. Also, for
the oil pump for the engine drive, open the
bypass valve on the piping block to let oil flow.

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM
Preparation for operation: Preparation of Initial Starting
2.2 DE-18 after a Long Period of Disuse and Overhaul

(2) Open the fuel oil inlet valve, after confirming F. Cleaning of Turbocharger Pre-Filter
that the operation lever is set to the "STOP" Dust or debris is collected in the pre-filter of the
position. turbocharger during transportation, outfitting, and
(3) Open the air vent valve of the fuel oil filter, installation, causing the filter to be stained or dam-
and drain oil until air bubbles in oil are com- aged.
pletely vanished. Therefore, clean it or replace it with a new one
(4) Open the air vent plug of the fuel injection before starting the operation.
pump and drain oil until air bubbles are com-
pletely vanished.
(5) After completing bleeding air, securely tighten
the air vent plug.

The heavy fuel oil is heated to a high

temperature (100℃ or more).
Touching the splashing oil may scald your
hands. If high-temperature parts are splashed
with the oil, a fire may occur. Take care not to
splash the oil when discharging air. G. Checking the Covers are Fitted
Check that the lagging for high-temperature
parts (exhaust pipe, turbocharger, etc.), exhaust
pipe cover and heat box cover that were removed
for disassembly and servicing are restored as they
were.

H. Checking the Ethylene Glycol Inventory

Level
For heavy fuel oil specification, check that the
ethylene glycol level inside the seal pot located at
the fuel pressure indicator piping system satisfies
the specified level.

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Starting: Starting Procedure DE-18 3.1

4-3．Starting B. Remote Starting (Manual and Push Button

Starting)

Inadvertent contact of working staff or objects (1) Change the starting location selector switch to
with the rotating parts is extremely dangerous "REMOTE".
since the person may be caught up or the object (2) Set the operation lever to the "RUN" position.
that caught up may fly out in all directions.
Therefore, strictly observe the following
items when starting the operation.
・Confirm that the protective covers of rotary
parts are mounted in normal state, and that
the rotary parts are free of any obstacle.
・Confirm that the turning device or turning bar
is set to "OFF".
・Send a signal to a coworker if any, and confirm
safety before starting the operation of engine.

4-3.1 Starting Procedure

Starting procedure can be classified into the
4
(3) Open the starting air valve and control air
three types; engine side starting remote starting,
valve, after confirming that the "READY" indica-
and automatic starting, and which of these should
tor lamp lights up.
be employed depends on the specifications.
(4) Press the starting button.
However, engine side starting (starting from
engine side) by manual operation should always (5) Confirm that "RUN" indicator lamp on the
be employed after installation, a long period of dis- panel lights up as the rotation speed of the
use and overhaul or maintenance. Also, perform engine reached the specified rate, and each
air run before starting, as necessary.( ：4-2.1) pressure reached the specified value.
<Work Procedure> (6) Close the starting air valve. (Leave the control
A. Starting from Engine Side air valve "OPEN" as it is.)
When power is "ON" and the control and protec-
tive devices are in operation:
(1)Open the starting air valve and control air valve.
(2)Set the starting location selector switch at
"LOCAL".
(3)Set the operation lever at "RUN" and hold the
operation lever.
(4)Press the start button on the engine.
(5)After the rotation speed of the engine rapidly
increased and starting established along with con-
tinuous ignition sounds, release the start button.
(6) Close the starting air valve. (Leave the control
air valve "Open" as it is.)

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM

3.1 DE-18 Starting: Starting Procerdure

C. Automatic Starting E. Starting on engine side in case of emer-

In the case of automatic starting, the engine gency
starts automatically by the starting command When the solenoid valve of the starting air relay
based on preset starting conditions, such as the valve cannot be operated, press the emergency
load conditions of power shutdown or other valve on the starting air relay valve on the front
engines (in the case of plural engines), and there- side of engine to open the main circuit.
fore it is essential that the engine should always be
kept in operable conditions.
Engines should be kept in the following condi-
tions at all times:

1. Starting mode "AUTO"

2. Operation lever position "RUN"
3. Starting location selector switch "REMOTE"
4. Air valve and control air valve "OPEN"

D. Starting on engine side

When starting the engine at a loss of power or
without making the control and protective devices
operable:

(1) Open the starting air valve and control air

valve.
(2) Set the operation lever at "START," and hold
the operation lever.
(3) After the rotation speed of the engine rapidly
increases and starting is established along with
continuous ignition sounds, release the start
button.
(4) Make sure that the rotation speed of the
engine reaches the specified speed and each
pressure value reaches the specified value,
and set the operation lever at "RUN."
(5) Close the starting air valve. (Leave the control
air valve "Open" as it is.)

DE-18 Z 16-04
 CHAPTER
Operation 4
ITEM
Starting: Starting Procerdure DE-18 3.1

F. Measures to be taken against starting failure

When a starting failure or a starting jam
occurred, take measures in accordance with the
separate section.
（ ：7 "Trouble Shooting and
Countermeasures"）

In the case that the engine repeatedly failed

to start in an extremely cold weather while the
engine is still in cold condition, the unburnt
mist of fuel oil may remain in the exhaust
manifold, having a possibility of catching fire
or explosion being caused by high-tempera-
ture combustion gas.
When starting failure repeats, conduct air
running and exhaust the unburnt mist in the
exhaust manifold, before restarting the 4
engine.

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM
Starting:
3.2 DE-18 Inspection and Check Items Immediately after Starting

4-3.2 Inspection and Check Items C. Abnormal Sound

Immediately after Starting Carefully listen to the sound of the following
engine parts, and check if there is any abnormal
Check the following items immediately after starting. sound or not.
When any abnormal error is found, immediately 1. Cylinder head and surrounding parts (intake
stop the engine and take proper measures. and exhaust valves)

（ ："Trouble Shooting and Countermeasure"） 2. Crankcase

3. Crankcase and timing gear and auxiliary drive
gear
After conducting overhaul or maintenance
4. Turbocharger
of the sliding parts or rotary parts, be sure to
once stop the engine and check that there is
D. Exhaust Temperature
no error or failure by hand-touching.
Check the exhaust temperature of each cylinder,
A. Engine Rotation Speed and confirm that all the cylinders are properly burnt
Make sure that the specified rotation speed (at 200℃ or more).
attains and the engine is rotating stably.
E. Leakage and Loose from each parts
Confirm that mounting parts, bolts and nuts of
B. Pressure Reading of Each Section
connecting parts should not been loosed. And
Confirm that the indicator of pressure reading,
check if oil, water, and gas should not leak.
for the manometer with blue mark, is within the
blue mark, showing the pressure is within the
specified value.
If the temperature of lubricating oil is low just
after the engine starts, pressure values may be out
of the specified ranges. Check that the pressure
values come into the specified ranges as the tem-
perature of lubricating oil rises.

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Operation: Running-in DE-18 4.1

4-4．Operation <Inspection Items during the Initial Running-in>

1. Abnormal sound.
4-4.1 Running-in
2. Partial heating.
Do not apply a load abruptly since the sliding
3. Leakage from connection points and loosening
parts of the engine are not yet sufficiently ready to
of the bolts and nuts.
work smoothly or freely when the engine is started
for the first time after its installation or immediately 4. Exhaust temperature, irregular exhaust color,
after replacement of the parts such as the cylinder combustion pressure: Abnormal combustion.
liners and the piston ring. 5. Excessive consumption of lubricating oil: Poor
Conduct the running-in operation to ensure adaptability of liners and rings.
smooth and free working of the sliding parts
according to the following procedure before getting <Inspection after Completion of the Initial
into the steady mode of operation. Running-in>
1. Checking the condition of sliding portions of the
A. Initial Running-in cam and the roller, and the cam metal by tactile
Whether or not the pistons and the oil rings feeling of the finger.
move smoothly and freely will substantially affect
the engine performance, especially the combustion
performance and consequently the consumption of
2. Checking the condition of the internal surface
of the cylinder liner.
4
lubricating oil. Further, it is assumed that they will 3. Checking the condition of the main shaft, the
be decided by the initial operation of a few hours. crankpin metal and the cylinder liner by tactile
feeling of the finger.
The revolution of the engine should be gradually
increased, then the engine should be stopped after
B. Operating Conditions during the Running-in
it is driven for two or three minutes without a load
Be sure to operate the engine during the run-
and then conduct the following inspection that is to
ning-in period under the following conditions, grad-
be effected after completion of the initial running-in
ually increasing the load referring to Figure 4.1 and
when the engine is started for the first time after its
paying special attention to the inspection items
installation or replacement of any of parts located
during the initial running-in indicated in Item A.
in the periphery of the cylinder such as the cylinder
liner, the piston, the piston ring. And especially the
following items in the checking list for the initial 1. Load: 80% or less.
running-in should be watched and checked during 2. Fuel oil to be used: Diesel fuel oil. Even for the
the engine operation in order to find out any symp- engines of heavy fuel oil type, use diesel fuel
tom of a trouble as soon as possible or to prevent oil during the running-in period.
it from occurring. 3. Notwithstanding the prescription given by Item
2 above, the lubricating oil specified for the
engines of heavy fuel oil type may be used for
such engines from the start of engine driving.
4. Running-in period is 20~30 hours.

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM

4.1 DE-18 Operation: Running-in

At the time when the running-in operation is

completed, conduct the following inspection works
and confirm that there is not any abnormality
before entering the normal and regular operation
of engine.

1.Inspection of foreign matters and stains in the

crankcase.
2.Visual inspection of the inner surface of the
cylinder liner.
3.Inspection and cleaning of the element of each
filter.
4.Remove the flushing filter attached the fuel oil
filter.

Be minded never to perform the operation

of engine using heavy fuel oil, while the
flushing filter is attached.
（ ：Refer to Item B in Section 5-4.3）

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Operation:
Warming-up and Connecting Load to the Engine DE-18 4.2

4-4.2 Warming-up and Connecting

Load to the Engine Be minded to perform no-load operation
In the case that the engine is started while it is only for warming up operation and keep it
still in a cold state, first perform the warm-up oper- within 10 minutes.
ation, except for the case of emergency, and grad- Running the engine under no-load for long
ually connect the load after the engine is sufficient- hours results in malfunctions such as faulty
ly warmed up. combustion and collection of carbons in the
combustion chamber.
If the load is hastily connected while the various
parts of the engine are still cold and not yet in the
conditions for proper fuel combustion and lubrica- B．Connecting Load to the Engine
tion, malfunctions such as faulty combustion, The lower the engine temperature (temperatures
excessive wear of the sliding parts, and seizure of jacket cooling water and lubricating oil) is, the
may be caused. longer time it is needed to connect the load.
The standard load connecting time is shown in
A．Warming-up Operation of Engine the figure below.
a．Use diesel fuel oil for warming-up operation （ ：Fig. 4.2 "Load Connection Pattern"）
Be sure to use diesel fuel oil for warming up the 4
engine, even in the case that the engine is
sufficiently heavy fuel oil.

b．No load
First operate under no load or light load, and
connect the load after jacket cooling water and
lubricating oil temperature increases.

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM

4.3 DE-18 Operation: Operation with Load (Normal Operation)

4-4.3 Operation with Load (Normal

Operation) During the operation of engine, particularly
the following parts become extremely hot, and
Inspect the running conditions of the engine and
touching these parts with bare hands or skin
measure the operating performance data in regular
may cause burns.
intervals, during the continuous operation with load
Therefore, be minded to use the protective wears
(including period of the running-in operation).
such as safety gloves when working on them.
In case that any problem is found as the results
・Exhaust pipe
of the inspection and measurement, take proper
・Turbocharger
measures such as adjustment or repair of the
・Air cooler inlet pipe
defective parts. (Refer to the separately provided
・Cylinder head
section.)
・Indicator valve
（ ：5-3 "Measurement and Adjustment"） ・ Fuel oil system equipment and piping (for
（ ：7 "Troubleshooting and Countermeasures"） heavy fuel oil)

A．Inspection of Operating Conditions B. Measuring Performance Data

<Check Item> a. Measure the operating performance data at
1.Abnormal sound and abnormal vibration least once every day, when the load variation is
2.Partial overheat less and the load is stable.
3.Leakage from connections and looseness of b. Compare each of the measured data with the
screws data obtained when the engine was newly intro-
4.Exhaust temperature, and abnormal exhaust duced, and judge if there is any problem and
color ... Abnormal combustion check the degree of deterioration.

5.Excessive consumption of lubricating oil （ ："Test Run Record Table" in the final
documents）

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Operation: Operation with Load (Normal Operation)
/Operation Using for Heavy Fuel Oil Engine DE-18 4.3,4.4

<Measurement Item> 4-4.4 Operation Using (for Heavy Fuel

1. Room temperature
Oil Engine)
2. Load (output)
Heavy fuel oil is lower in its quality and higher in
3. Intake air temperature (turbocharger inlet) its viscosity than diesel fuel oil. When using heavy
4. Exhaust temperature (each cylinder outlet) fuel oil, proper operation control, such as switching
5. Exhaust temperature (turbocharger inlet) to the operation using diesel fuel oil depending on
6. Intake air pressure (engine inlet) the load conditions is required, in addition to prop-
er fuel oil and lubricating oil control (refer to the
7. Lubricating oil pressure (engine inlet)
separate sections.)
8. High-temperature cooling water pressure
（ ：6-1 "Fuel Oil Control"）
(engine inlet)
（ ：6-2 "Lubricating Oil Control"）
9. Low-temperature cooling water pressure
A．Operation with Diesel Fuel Oil
(engine inlet)
Be minded to use heavy fuel oil only under sta-
10. Fuel oil pressure (engine inlet)
ble load conditions, and be sure to use diesel fuel
... for heavy fuel oil type oil in the following cases:
11. Inlet air temperature (engine inlet)
12. Lubricating temperature (engine inlet)
a. During Running-In Operation Period
(20~30 hours) 4
13. Cooling water temperature (cylinder head out- 1.Immediately after installation
let main pipe) 2.After replacement of the sliding parts around cylin-
14. Fuel oil temperature (engine inlet) der (e.g. cylinder liner, piston, and piston ring)
... for heavy fuel oil type （ ：4-4.1 "Running-In Operation"）
15. Fuel injection pump rack scale b. During Starting or Warming-Up Operation

C. Regular Inspection and Maintenance （ ：4-3 "Starting"）

Conduct inspection and maintenance of the vari- （ ：4-4.2 "Warming-Up Operation"）
ous parts of engine regularly.(Refer to the c. During idling or Low-Load Operation
separately provided section.)
When the engine is operated under low load, the
（ ：5 "Inspection and Maintenance"） compressed air temperature in the cylinder and
fuel injection pressure of fuel oil are low, and
D. Operation Records therefore if the heavy fuel, of which combustion
Record the results of inspection and measure- quality is lower than that of diesel fuel oil, is used,
ment and the contents of performed adjustments combustion becomes unstable, resulting in unde-
and repairs in the engine control log. sirable conditions, such as worsening of the
exhaust smoke, sticking of the ring, and so on. In
the case of the connection of the load that is below
Operation records are very important docu-
the lower limit described in the engine specifica-
ments when understanding the conditions of
tion, be minded to use diesel fuel oil.
engine and tracing the history of the inspec-
tion or maintenance that has been performed. （ ：4-5.1 "Low\load Limit"）
Keep and store them carefully, and when d. In the Case that Load Variation is Heavy
the supervisor is changed, be sure to transfer 1.When entering or leaving port
the records to the successor without fall. 2.When cargo is being loaded or unloaded

DE-18 A 12-03
CHAPTER
4 Operation
ITEM
Operation: Operation Using Heavy Fuel Oil
4.4 DE-18 (for Heavy Fuel Oil Engine)

B．Switching Fuel Oil Types

Heavy fuel oil is normally heated up to 80~90℃ If high-temperature parts are splashed with
in the service tank, and 100℃ or more at the the oil, a fire may occur. Take care not to
engine inlet, and the temperature difference is splash the oil when discharging air.
larger as compared with that of diesel fuel oil (non-
heated), and therefore if fuel oil is suddenly e.Confirm that the heat traces on piping and
switched between these oils, it may cause mal- equipment is properly functioning.
functions such as sticking of the fuel injection
pump, vapor lock, and so on.
The fuel oil is heated, and the filter and the
a. Slowly switch from diesel fuel oil to heavy fuel piping are at high-temperatures. If touched
oil, so that the rate of change in the fuel oil tem- with bare hands or skin, it may cause a burn.
perature at the engine inlet is between 5~10℃ Therefore, be minded not to directly touch the
per minute. exposed metallic parts such as the valves and
（ ：Fig. 4.3 "Switching Pattern from Diesel cocks, and use the protective wear such as
Fuel Oil to Heavy Fuel Oil"） safety gloves when working on them.
b. Maintain the viscosity (temperature) of heavy
fuel oil at the engine inlet at the specified value.
c. Do not raise the temperature of diesel fuel oil In case that emergency stop is made during
over the flashing point (60℃ is the standard the operation with heavy fuel oil, immediately
point). switch the heavy fuel oil to diesel fuel oil,
d. To prevent the generation of vapor, maintain operate the separate pump, and perform
the pressure of fuel oil at the specified value. flushing of the fuel oil system.
Further, remove the air bubbles in fuel oil in the If the engine is cooled down with the heavy
various equipment of the fuel oil system (heater, fuel oil left unchanged, the oil will be solidified
filter, tank, etc.) from time to time, so that the and the operation will be prohibited.
accumulation of vapor can be prevented.

Switching from Diesel Fuel Oil to Heavy Fuel Oil Switching from Heavy Fuel Oil to Diesel Fuel Oil

Viscosity at engine inlet 11~14 mm2/s Viscosity at engine inlet 11~14 mm2/s
Fuel oil temperqture

Fuel oil temperqture

Temperature of heavy fuel oil Temperature of

at engine inlet

at engine inlet

heavy fuel oil Temperature fluctuation

Temperature fluctuation of 5 to 10 oC per minute
of 5 to 10 oC per minute or less
Temperature of or less Temperature of
diesel fuel oil diesel fuel oil
operation

operation

Switching from diesel Switching from heavy

fuel oil to heavy fuel oil fuel oil to diesel fuel oil
Operation with Operation with Operation with Operation with
diesel fuel oil heavy fuel oil heavy fuel oil diesel fuel oil
Check items

Check items

Check the Check the

operation of Switch at a stable load Switch at a stable load operation of
heavy fuel oil (above the lower load limit) (above the lower load limit) heavy fuel oil
supply equipment supply equipment

Notes: 1. Since the pretreatment of fuel oil differs depending on the use purpose of the engine, the operating method suitable to
each system is necessary.
2. The diesel fuel oil temperature when switching on heated condition shall be 60K or less.

Fig. 4.3 Switching Pattern from Diesel Fuel Oil to Heavy Fuel Oil

DE-18 B 12-08
 CHAPTER
Operation 4
ITEM
Operation: Operation Using Heavy Fuel Oil
(for Heavy Fuel Oil Engine) DE-18 4.4

C. Cleaning Operation before Engine Stop [Objectives of cleaning operation]

Follow the steps below when switching fuel oil to After the heavy fuel oil engine is stopped, the
stop the heavy fuel oil engine or when making fuel rack may adhere to adjacent components,
operation to stop the engine: causing troubles when the engine is started
some time later. While the engine is operating
1. Switch the fuel oil with a load as stable as possi- with heavy fuel oil, some of the oil enters the
ble that is equal to or larger than the low load sliding parts on the plunger of the fuel oil injec-
limit described in the engine specifications. Do tion pump and the rotating parts of the control
not switch the fuel oil if there is no load applied. sleeve. The oil cools off to be sludgy when the
2. Before stopping the engine, use diesel fuel oil fuel oil is switched to diesel oil and then the
for the cleaning operation. Continue the operation engine stops. Thus, the fuel rack adheres to
with a load as high as possible that is equal to or adjacent components.
larger than the low load limit for as long a time as When you take sufficient time to continue load
possible that is a time longer than 30 minutes. operation with diesel fuel oil, the oil having
3. Idle the engine for about five minutes before entered adjacent components is gradually
stopping the engine. washed away by the diesel fuel oil, preventing
the fuel rack from adhering to adjacent compo-
After stopping the engine, check the movement
nents.
of the fuel rack. If the movement is not smooth,
apply some oil to the rack. Move the rack back
and forth to confirm its smooth movement.
4. If the engine is not used for a long time, espe-
cially when you are going to dock the boat, keep
4
the cleaning operation for about half a day, which
removes foreign substance out of the combustion
chamber, piston ring grooves, etc. Keep the oper-
ation by applying a load as heavy as possible
(60% or more) with diesel fuel oil.

Example of Operation at Engine Stop

DE-18 Z 12-08
CHAPTER
4 Operation
ITEM

5.1 DE-18 Special Operation: Low-load Operation

4-5 Special Operation

D. Intermittent High Load Operation
4-5.1 Low-load Operation (Power
During continuous low-load operation, operate
Generator Specifications)
the engine at the highest load possible (60% or
Since running the engine with a low-load lower more) for about 30 min. This is effective in prevent-
than a certain limit can lead to unfavorable com- ing fouling in the combustion chamber and the air
bustion conditions such as the reduction of intake intake and exhaust systems.
air pressure and blowing-back of exhaust air, if the
engine is operated under such conditions for long
hours, it may result in the various malfunctions
such as fouling of the turbocharger and combus-
tion chamber, faulty combustion and so on.
Therefore, be sure to minimize the low-load
operation to a shorter period of time as much as
possible, and in case that the engine must be
inevitably run under a low-load for long hours, be
sure to observe the following conditions:

A. Low-load Limit
The low-load limit varies depending on each
specification. Confirm the low load limit described
on the specification supplied with the engine.

B. Use of Diesel Fuel Oil

In case of the heavy fuel oil type, be sure to
switch to diesel fuel oil if operation is conducted
below the load limit given in Item A.

C. Cleaning of Turbocharger
Properly increase the number of times of clean-
ing the compressor of the turbocharger according
to necessity.

The turbocharger is at a high-temperature

during operation and just after the engine is
stopped. If you touch it with bare hands during
cleaning, you may burn your hands. Wear
safety gloves without fail.

DE-18 B 14-03
 CHAPTER
Operation 4
ITEM
Special Operation: Allowable Operating Range DE-18 5.2

4-5.2 Allowable Operating Range When hull pollution spreads and resistance
(for Main Engine) increases exceeding the sea margin, absorption
horse power increases even when the rotation
For the main engine, the load changes with the
speed is the same, causing a torque-rich phenome-
rotation speed in conformity with the marine char-
non. So make sure to use care on the rotation speed
acteristics. Allowable operating range and recom-
and rack scale to avoid causing torque rich problem.
mended operating range regarding marine charac-
teristics are shown in the figure below. For actual Also, when propeller absorption horse power
operation, appropriate rotation speed and engine changes rapidly due to foul weather, particular
torque (judged by Pme and rack scale) shall be care must be exercised as it tends to become
selected and operation shall be conducted within torque-rich, triggering surge in turbocharger.
the recommended operating range as much as
possible to avoid overload. (2) Variable Pitch Propeller (CPP)
For variable pitch propeller, absorption horse
To add, the low-load limit at the time heavy oil is
power can be changed by changing the propeller
used shall be 30% for normal cases and if the load
pitch with the engine rotation speed at constant.
is less than 30%, then diesel fuel oil shall be used.
Therefore, it is advantageous, as rotation speed
For the output characteristics of actual equip-
and load are adjustable in accordance with the
ment, please refer to the "Engine Test Run Record
Table" in the final documents.
conditions of other auxiliaries of the main engine 4
drive as well as ship resistance.
However, large freedom degree means that it
(1) Fixed Pitch Propeller (FPP)
has a tendency to become torque rich in operation.
Fixed pitch propeller is designed with the sea
Always grasp the load conditions and perform
margin added, taking into account the absorption
operation appropriately so as not to cause torque-
horse power, based on the marine characteristics
rich phenomenon.
and pollution of hull.

DE-18 Z 12-01
CHAPTER
4 Operation
ITEM
Special Operation: Non-turbocharger Operation
5.3,5.4 DE-18 / Operation with Reduced Number of Cylinders

4-5.3 Non-turbocharger Operation 4-5.4 Operation with Reduced Number

For the main engine, non-turbocharger operation of Cylinders
tools (turbocharger blind patch) are provided in Operating with reduced number of cylinders
order that temporary operation can be performed would cause problems in the torsional vibration of
even if turbocharger is damaged. (Power genera- shafting and external vibration of engine. Thus, its
tion engine is optionally available.) use is limited to a short-time, only as an emer-
The operating procedure is as follows: gency measure.
Operating with reduced number of cylinders
<Preparation for Operation> occurs in various cases, such as when cutting off
Install non-turbocharger operation tools in accor- only the fuel oil or when it is necessary to remove
dance with the turbocharger operation manual. the operating part. Prohibitions concerning opera-
tion differ according to each case. If you are per-
forming operation with reduced number of cylin-
ders, make sure to contact our office and receive
Turbocharger is at a high temperature dur-
instructions on the work procedure and matters to
ing operation or immediately after the engine
attend to in operating the engine. Also, make sure
is stopped. Touching the turbocharger with
to follow the instructions.
your bare hands or exposing your bare skin to
it may cause burns.
Make sure to allow enough time to let it cool <Operating Conditions>
down before performing disassembly. a) Use diesel fuel oil.
If you must remove it before it is cooled b) Output
down out of necessity, make sure to wear (Total number of cylinders) - (Number of cylinders out of use)
Ｘ70％
safety gloves and engage in work paying (Total number of cylinders)
attention not to get burnt. The output may decrease depending on surging
of the turbocharger or the exhaust temperature.
<Operating Conditions> c) Exhaust temperature (each cylinder outlet):
a) Diesel fuel oil shall be used. 450℃ or less
b) Output shall roughly be as follows, and be kept
as low as possible.
Pay attention to external vibration and gear
● Pme (average effective pressure): 0.44 MPa
sound. If you feel any abnormality, stop the
● Exhaust temperature (each cylinder outlet):
engine immediately. Continuing operation with-
450℃ or less out doing anything may lead to a big accident.

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Stop: Normal Stop DE-18 6.1

4-6. Stop C. After Stop

a. Operate both the lubricating oil priming pump
4-6.1 Normal Stop
and cooling fresh water pump for about 20 min-
A. Precautions for Stop
utes, and cool down the engine and turbocharger.
a. In the case that heavy fuel oil is used, switch the
Normally, the system is designed so the priming
fuel oil to diesel fuel oil 30 minutes before stop-
pump operates at the same time the engine
ping the engine.
stops.
b. Immediately before stopping the engine, start
the operation of lubricating oil priming pump.
c. Confirm that the starting air pressure is at 2.0
The turbocharger continues to run at high
MPa or more.
speed even after the engine is stopped.
(The preparation for the next round of starting)
Lubrication of the turbocharger provided
with this engine is made using the system oil,
B. Stop and therefore if the supply of lubricating oil is
a. Conduct the stop operation on the following pro- stopped immediately after the engine is
cedures: stopped, it may damage the bearing.

[For local operation]

(1) Shift the operation lever to "STOP" position.
b. Fully open the indicator valve to conduct air run-
ning for 3~4 seconds and exhaust the combus-
4
(2) Then, fuel oil injection will be shut off by tion gas out of the combustion chamber.
means of the common rod, and the engine will c. Close the valves on all the systems.
be stopped.

[For remote control]

(1) Press the "STOP" button on the control panel.
Then, the fuel shutdown solenoid valve is
activated to operate the fuel shutdown device,
and the engine is stopped.
(2) Shift the operation lever to the "STOP" position.

b. After stop operation, be attentive of any abnor-

mal sound in the engine and turbocharger, and
confirm that there is not any abnormal sound.

In case that the engine does not stop even

when the stop operation is conducted, forcibly
stop the engine in the following procedure:
(1) Forcibly set the rack of the fuel injection
pump at "0".
(2) Fully close the valve of the fuel oil inlet main
pipe.

DE-18 A 12-08
CHAPTER
4 Operation
ITEM

6.2 DE-18 Stop: Emergency Stop

4-6.2 Emergency Stop B．Measures after Emergency Stop

A．When Emergency Stop is Required In case that the engine is automatically stopped
Immediately stop the engine when any of the fol- by activation of the protective device or stopped
lowing abnormalities is found: manually, take the following measures:
1. Announcement of "Emergency" or "Alarm" a．In case that the engine is stopped by remote
operation or stopped automatically, set the opera-
(＊Activation of the protective device →
tion lever to the "STOP" position after the engine
Automatic stops) is stopped.
＊● Overspeed
b．In case that the operation had been made
＊● Decrease of lubricating oil pressure
using heavy fuel oil, immediately switch the fuel
＊● Suspension of water supply/increase of
oil to diesel fuel oil, operate the motor-driven oil
cooling water temperature
feed pump, and conduct flushing of the fuel oil
● Increase of exhaust air temperature
system (However, this procedure does not apply
● Other alarming (depending on each speci-
when the fuel oil pipe is broken.)
fication)
Further, conduct turning of the engine, and
2. Abnormal sound and abnormal vibration
exhaust the heavy fuel oil remaining in the fuel
3. Heating of the bearings or other moving sec- injection pump or fuel valve.
tions, generation of smokes, or abrupt increase
of mist.
4. Loosening or falling-off of the governor, com- In case that the engine is stopped during
mon rod rink, each lever around the fuel oil the operation using heavy fuel oil and the
injection pump, link pin, or bolt. engine is cooled down without changing the
5. Deterioration of fuel oil or lubricating oil, or fuel oil, heavy fuel oil in the equipment of the
damage of the cooling water pipe. fuel oil system (e.g. pump, filter, etc.) and pip-
ing not only solidify to prohibit starting, but
6. Abrupt increase or decrease of rotation speed.
also incur substantial labor to clean and
7. Abrupt increase of lubricating oil temperature
cleanse after the accident.
8. Water supply disability due to suspension of
cooling water supply c．Disconnect the load off the engine, and return
the operation lever, each valve, and the state of
all other equipment to the "STOP" position.
In case that the engine is overheated due to
suspension of water supply, do not hastily
supply cooling water. In case that the emergency stop is conduct-
If cooled down abruptly, each part of the ed, be minded not to restart the engine until
engine may be deformed, resulting in malfunc- the cause is determined, the countermeasures
tion or accidents. are taken, and recovery is completed.
In case that the engine is started without
9. Mixing of water into lubricating oil removing the cause of the abnormality, the
10. Abrupt increase of exhaust air temperature malfunction may be aggravated and serious
accidents may be caused.
11. Abrupt decrease of the turbocharger rotation
speed or intake air pressure
12. Breakage or loosening of the bolts of each section.

DE-18 Z 12-01
 CHAPTER
Operation 4
ITEM
Stop: Emergency Stop / Long-term Shutdown DE-18 6.2,6.3

c. Open each cover of the crank cam case, and

the cylinder head, and spray rust-preventive oil to
Be minded not to open the crankcase for at the internal parts.
least 10 minutes after engine is stopped and d. Insert the moisture-proof agent such as silica
is completely cooled down. If the crankcase is gel into the crankcase, according to the ambient
opened immediately after the engine is air conditions (e.g. weather and humidity) if
stopped, flammable mist in the crankcase may required.
catch fire and explode. e. Place the cover on the outside air opening sec-
Particularly be careful when a large amount tion of the exhaust air pipe and the mist pipe.
of mist is generated due to overheat or seizing f. Cover the engine with a sheet, and carefully
of the engine. cover the electric equipment with particular atten-
Be minded never to let flames or sparks tion to prevent collection of dust on them.
approach the crankcase even after it is over-
hauled.

4-6.3 Long-term Shutdown

In the case that the operation of engine is sus-
pended for a long term (one month or more), take 4
the preservation measures (mainly, anti-rusting
measures) in the following procedures:

A. Shutdown within 3 Months

a. Fully open the indicator valve once every week,
and conduct turning of the crankshaft several
times while conducting priming with lubricating oil.
In this case, stop the crankshaft at a position
different from that before turning. After turning,
securely close the indicator valve.
b. In the case that there measures a risk of freez-
ing in extremely cold season, be minded to
remove cooling water from the engine.

B. Shutdown over 3 Months ... Measures for

Long-term Storage
In the case that the operation of engine is sus-
pended for 3 months or more, the following meas-
ures for long-term storage is required:
a. Remove cooling water from the engine.
b. Add rust-preventive oil to lubricating oil, open
the indicator valve, and conduct turning of the
crankshaft several times while conducting priming
with the lubricating oil.
After turning, securely close the indicator valve.

DE-18 Z 12-01
CHAPTER
5 Inspection and Maintenance
ITEM

1.1 DE-18 Precautions for Inspection and Maintenance: Safety Precautions

5. Inspection and Maintenance

5-1. Precautions for Inspection and Maintenance

When conducting the inspection and maintenance works of engine, be minded to read this
manual carefully, understand the structure of the related parts and the work contents, carefully
examine the working procedures, and prepare the consumable parts and tools in advance,
before starting these works.
If the works are conducted without previous and sufficient examinations, it not only leads to
the expense of useless labors, but also results in failure or damage of the engine due to mistak-
en assembling, and further in personal accidents. Be sure to replace all the damaged parts, or
the parts that reached replacement limit, both of which were so found after the results of inspec-
tions.
If it is difficult to replace these parts at the site, or if necessary parts are not ready for use,
please contact our Service Department or the nearest DAIHATSU's branch office and receive
instructions for appropriate measures to take.

5-1.1 Safety Precautions

A. Do not open the crankcase side cover for at least 10 minutes after the engine is stopped and is
completely cooled down. While the engine is overheated, there is a danger that oil mist may catch
fire and explode if new air is flowed into the crankcase when it is opened.
B. If the engine is rotated during disassembly or inspection works, it may impose serious dangers
such as caught-up accidents and so on.
Be minded to start these works, after returning the operating lever to the "STOP" position, secure-
ly closing the starting air valve, and confirming that the engine is not running.
When conducting the turning of engine, be minded to start it after confirming that nothing is in con-
tact with the rotational parts, and no danger is imposed on coworkers by the rotation of engine, and
after sending the signal to them.
Perform proper preventive measures to prevent the crankshaft from freely turning.
C. Be minded to use the protective wears such as safety glove, helmet, safety shoes, safety goggles,
according to the circumstances.
During the operation of engine and immediately after stopping the engine, the engine parts, partic-
ularly exhaust manifold, turbocharger, indicator valve, parts round the cylinder are extremely hot.
Therefore, be sure to wear safety gloves, and proceed the works taking care not to incur burns.
The engine room floors and the surrounding areas are slippery due to oils stuck on them.
Therefore, be minded to start the works after sufficiently wiping off the oils stuck on floors or shoe
soles. Particularly when working on high-rise places such as foot-step board, pay enough attentions
to the periphery of your feet, so that falling-off accidents should not happen.
D. When disassembling the piping systems, "Close" all the valves of the external connection parts,
gradually release the air vent plug, and start the disassembly after removing residual pressure.
Immediately after stopping engine, when disassembling the filters and connection parts of piping
systems, you may burn on your skin due to an injected high temperature oil or water of residual
pressure. If high temperature parts are splashed with the fuel oil or the lubricating oil, a fire may
occur. Take utmost care when disassembling them.

DE-18 Z 12-01
 CHAPTER
Inspection and Maintenance 5
Precautions for Inspection and Maintenance: ITEM

Safety Precautions / Inspection and Maintenance DE-18 1.1, 1.2

E. When disassembling the spring-loaded devices such as the regulation valves, proceed the works
paying careful attentions, since there is a risk that the springs may fly out and injury accidents may
occur.
F. Be minded to use wire rope and chain block when suspending the heavy-weight parts or equip-
ment, and do not try to forcibly raise these parts or equipment by physical force. Further, be minded
not to approach the areas immediately under the suspended parts or equipment.
G. When handling the electric parts, be sure to cut off the power source.

H. When handling the liquids, be minded to strictly observe the following items:
● Fuel oil, lubricating oil = Flammable --- Use of fire is strictly prohibited.
● Rust-preventive agent for fresh water, anti-freeze solution for fresh water and mercury (thermome-
ter) = Poisonous --- Drinking is prohibited and cleaning when adhered.
● Battery liquid = Poisonous and flammable gas generation --- Drinking is prohibited, cleaned when
adhered and use of fire is strictly prohibited.
◎ For the sake of preventing environmental contamination, be minded to entrust the disposal and
treatment of the waste oils and liquids to the authorized special waste disposing company.

5-1.2 Cautionary Items When Finishing Inspection and Maintenance

A. Restore the lagging or heat-preventive covers, combustible oil splash preventive means (splash-
proof tape) and protective covers, which were removed for inspection and maintenance, to each
original position. 5
B. After the completion of assembling, confirm that there is no abnormality in each part, by conducting
the turning of engines and the priming with each corresponding oil. After checking the parts during
turning, close the indicator valve without fail.
C. After the completion of working, return the turning equipment and turning bar used to the "OFF"
position.
D. Record the work contents of the inspection and maintenance and the replaced parts in the daily
report respectively.

DE-18 Z 12-01
CHAPTER
5 Inspection and Maintenance
ITEM

2 DE-18 Inspection and Maintenance Table

5-2. Inspection and Maintenance Table
This table shows the inspection and maintenance work items (basically, those to be performed within 6
months). As for the work items concerning the full-scale open and maintenance after the long-term opera-
tion, refer to the corresponding sections of "Maintenance" version, which is separately provided.
（○：Normal, ▲：Initial operation and 1st operation after overhaul, ●：Initial operation after installation,
overhaul, and maintenance, ◎：Replacement）

compressor

DE-18 A 14-03
 CHAPTER
Inspection and Maintenance 5
ITEM
Measurement and Adjustment: Exhaust Air Temperature
/ Pressure and Temperature of Each Part DE-18 3.1, 3.2

5-3. Measurement and Adjustment <Rack Adjusting Procedure>

The reading on the rack scale can be increased
5-3.1 Exhaust Air Temperature
or decreased by the adjusting screw (A) of the fuel
The exhaust air temperature is a critical index injection pump rack lever.
for indication of the engine combustion conditions (1) Loosen the lock nut (B)
and changes over time.
(2) Turn the adjusting screw A and change the
Normally, degradation of the engine perform- reading on the rack scale.
ance is indicated as a rise in the exhaust air tem- ●Clockwise turning → "Increase"
perature. (Increase of exhaust air temperature)
Measure and record the temperature everyday ● Counterclockwise turning → "Decrease"
to reveal a tendency of degradation. Use such (Decrease of exhaust air temperature)
records to determine the interval of servicing. (3) Confirm that the exhaust air temperature is
A. Exhaust Air Temperature within the specified value.
The exhaust air temperature at each cylinder (4) Securely tighten the lock nut.
outlet slightly varies from one cylinder to another
depending on the factors such as the effect of ＊Difference between cylinders: 1.5 mm or less
other cylinders as well as the distance to the tur-
bocharger inlet.
The exhaust air temperature can be adjusted by
increasing or decreasing the fuel injection pump
rack, however, the adjustment is ordinarily unnec- 5
essary as long as the difference between cylinders
is within the following value.

＊Difference between cylinders: 40℃ or less

B. Adjustment of Amount of Fuel Oil Injection

Pump Rack
In the case that the exhaust temperature differs
from those of other cylinders in excess of the
range specified in the above A., for example, when 5-3.2 Pressure and Temperature of
the fuel oil injection plunger or the fuel injection Each Part
valve nozzle is replaced, adjust the fuel oil injec-
The pressure and temperature of lubricating oil,
tion amount by increasing or decreasing the read- fuel oil, and cooling water, etc. are controlled by
ing on the rack scale. the relief valve and the thermostat valve, so that
they should be proper values being within each
specified value during the operation of engine,
however, when actually operating the engine, the
pressure and temperature of these fluids may not
be within the specified and proper values.
In such a case, readjust the setting values of the
valves, and perform the operation within the
specified proper range.

DE-18 Z 12-01
CHAPTER
5 Inspection and Maintenance
ITEM
Measurement and Adjustment:
3.2 DE-18 Pressure and Temperature of Each Part

A．Intake Air Pressure When the intake air temperature is too low, it
Since the intake air pressure changes in accor- causes abnormal or excessive wear of the cylinder
dance with load, each pressure when the engine liner, intake air valve, etc., since the water drops is
was new (or, after adjustment) becomes a refer- formed by the dew condensation.
ence value. Further, if the intake air temperature is too high,
it damages the parts around the combustion cham-
The more the compressor of the turbocharger is
ber such as the exhaust valve, since the exhaust
fouled, the more the intake air will decrease,
air temperature increases. (Exhaust air tempera-
resulting in the deterioration of the engine perform-
ture varies in proportion to the intake air tempera-
ance (e.g. increase of the exhaust air temperature
ture, and also varies in the rate of approximately 2
and increase of the fuel consumption rate), and times the change of the suction air temperature of
therefore regularly conduct the compressor clean- the turbocharger.)
ing and prevent the progress of fouling.
It is systematically designed, in case the engine
（ ：5-4.4 "Cleaning Turbocharger Compressor"） load is below the specified load, to automatically
activate the cooling water bypass, to let water in
the low temperature line to bypass so the air sup-
The turbocharger is at a high-temperature ply temperature can be increased to improve com-
during operation and just after the engine is bustion at the time of low load.
stopped. If you touch it with bare hands during
cleaning, you may burn your hands. Wear
If the intake air temperature gets out of the prop-
safety gloves without fail.
er range owing to a low room temperature, or
when automatic adjustment of intake air tempera-
ture cannot be made for some reasons, operate
It is impossible to completely remove the
the following procedure.
fouls even when cleansing by compressor
cleaning, and to prevent the deterioration of
engine performance by the elapse of time. <Intake Air Adjusting Procedure>
However, if the cleaning is neglected, fouling The intake air adjustment can be made by chang-
will accelerate, resulting in worsening of the ing the cooling water flow rate in the air cooler.
engine performance, and as the result it will (1) Turn the adjusting screw (B) of the cooling
be required to disassemble and clean the tur- water bypass valve clockwise.
bocharger much earlier than when the clean- (2) Be attentive to changes in the intake air tem-
ing is periodically conducted. perature, and adjust the adjusting screw feed
so as to be within the proper range.

B．Intake Air Temperature

Do not screw in the adjusting screw 12 mm

＊Proper temperature: 45~55℃ (at rated output)
or more. The bypass valve is seated.

Intake air, that is either higher or lower than the

specified range, will affect the engine, and there-
fore be minded to adjust and keep the temperature
to be within the specified proper range, as far as
possible.

DE-18 A 14-03
 CHAPTER
Inspection and Maintenance 5
ITEM
Measurement and Adjustment:
Pressure and Temperature of Each Part DE-18 3.2

In the case that the intake air does not fall within <Lubricating Oil Pressure Adjusting
the proper range even when the entire amount of Procedure>
cooling water is flowed into the air cooler, it is When adjusting the lubricating oil pressure, use
required to disassemble and adjust the air cooler the adjusting screw on the lubricating oil relief
since the fouling of the air cooler can be consid- valve.
ered. (1) Remove the hexagon cap nut (A) and loosen
( :12-3 "Air Cooler" in "Maintenance Manual") the nut (B).
(2) Turn the adjusting screw (C), and adjust the
pressure.
● Clockwise turning (tightening)
→ Increase of pressure
● Counterclockwise turning (loosening)
→ Decrease of pressure
(3) Be attentive to changes in the pressure, and
confirm that the pressure entered within the
blue mark range.
(4) Tighten the lock nut (B) and attach the hexa-
C．Lubricating Oil Pressure gon cap nut (A).

＊Proper range (blue mark range on manometer)

0.4~0.5 MPa

Lubricating oil pressure changes in accordance

In the case that the lubricating pressure
does not change even when the adjustment
5
with the changes in the viscosity and temperature screw is turned, there is the possibilities of
of lubricating oil. sticking of relief valve, suction of air, pump
When the engine is started in extremely cold failure, and so on, and therefore investigate
weather, and the temperature of the lubricating oil the causes of the trouble.
is still low and the viscosity is high, the pressure
reading may go up beyond the blue mark range,
however, it does not impose any problem if the
reading falls back within the blue mark range when
the engine is warmed up.
In the case that the pressure reading is above or
under the blue mark range, adjust the pressure in
the following procedure:

Lubricating oil pressure decreases when the

filter is fouled. Be sure to perform the adjust-
ment of pressure after the filter is cleaned
well.
（ ：5-4.3 "Cleaning Filters"）

DE-18 Z 12-01
CHAPTER
5 Inspection and Maintenance
ITEM
Measurement and Adjustment:
3.2 DE-18 Pressure and Temperature of Each Part

D. Lubricating Oil Temperature <Adjusting Procedure>

Turn the adjusting screw (C) to adjust the
＊Proper range: 55~65℃ (cooler outlet) temperature.
● Turn clockwise (tighten)
Lubricating oil temperature is controlled to → The temperature rises.
remain within the proper range of temperature by
● Turn counterclockwise (loosen)
the relief valve installed at the lubricating oil cooler
→ The temperature drops.
outlet.
(1) Fully loosen the adjusting screw (C).
a. Lubricating Oil Thermostat Valve
→ The cooler passage fully closed.
The thermostat valve is an automatic bypass
(2) Observe the changes in the oil temperature
valve, that changes the flow rate of lubricating oil
while tightening the adjusting screw, and set
passing through the cooler according to its temper-
the lock nut when the temperature comes into
ature, and when the engine is started while it is still
the following range.
in the cold state, this valve rapidly raises the lubri-
cating oil temperature by letting the oil bypass
Do not screw in the adjusting screw 8 mm
through the cooler, and when the engine is operat-
or more.
ed normally, this valve maintains the lubricating oil
temperature within the suitable range of the speci-
fied value.
In the case that the lubricating oil temperature
does not fall within the proper range, for example,
because the cooling water temperature (low tem-
perature) is different from the design temperature,
the temperature of lubricating oil can be adjusted
by the adjusting screw of the thermostat valve.
However, in case that the actual temperature is
exceeding the correctable range (approximately
5℃) and the adjustment is impossible, contact us
for consultation on the problem.

b. Manual Adjustment-Emergency Measures

In the case that the thermostat valve fails and
the temperature control becomes impossible, the
＊ Use range: 30~65℃
engine can continuously be operated by perform-
Since the oil temperature changes accord-
ing the emergency measures in the following pro-
ing to the load, be minded to set the oil tem-
cedure.
perature at a rather lower level, so that it does
not exceed the limit when heavily loaded.

DE-18 Z 12-01
 CHAPTER
Inspection and Maintenance 5
ITEM
Measurement and Adjustment:
Pressure and Temperature of Each Part DE-18 3.2

E. Cooling Water Pressure (Jacket Line)

＊Proper range: 0.15~0.40 MPa Cooling water

thermostat
valve case
Jacket cooling water pressure substantially
changes depending on the external conditions
such as the cooling water expansion tank head,
pipe resistance, and so on.
When cooling water pressure is too low, it will
cause cavitation corrosion of the engine frame or
cylinder liner, and therefore adjust the cooling
water pressure at the engine outlet using the ori-
fice, so that the pressure should be proper during
the operation of engine.

F. Cooling Water Temperature (Jacket Line) Cooling Water Thermostat Valve

＊Proper range: refer to engine specifications

(engine outlet) <Fuel Oil Pressure Adjusting Procedure>
Adjustment of fuel oil pressure can be made by
a. Warming-up Operation
When jacket cooling water temperature is too
the pressure adjusting screw of the fuel oil relief
valve.
5
low, it causes faulty combustion or the corrosion or
wear of the parts around the combustion chamber, (1) Remove the screw cap (A) of the relief valve,
and therefore be minded to start the operation of and loosen the lock nut (B).
engine with load after raising the cooling water (2) Turn the adjusting screw (C), and adjust the
temperature by warming-up operation. pressure.
（ ：4-4.2 "Warming-up Operation"） ● Clockwise turning (tightening)
→ Increase of pressure
b. Temperature Control
● Counterclockwise turning (loosening)
The cooling water temperature is controlled
appropriately by the thermostat valve at the jacket → Decrease of pressure
cooling water outlet. (3) Be attentive to changes in the pressure, and
confirm that the pressure reading is within the
G. Fuel Oil Pressure
proper range.
a. Engine Using Heavy Fuel Oil
When using heavy fuel oil, the pressure of heavy (4) Tighten the lock nut (B), and attach the screw
fuel oil must be adjusted to be within the following cap (A).
range, so that generation of vapor due to heating-
up of the fuel oil can be prevented.

＊Proper range: 0.5~1.0 MPa

DE-18 B 15-07
CHAPTER
5 Inspection and Maintenance
ITEM
Measurement and Adjustment:
3.2 DE-18 Pressure and Temperature of Each Part

b. Engine Using Diesel Fuel Oil H. Fuel Oil Temperature ... When Using Heavy
Fuel Oil
＊Proper range: 0.2~0.3 MPa Heavy fuel oil must be heated so as to make its
viscosity suitable for injection, before the oil is
In the case of diesel fuel oil, the pressure adjust- supplied to the engine.
ment procedure is the same as in the case of
heavy fuel oil specification, since the same type of ＊Proper viscosity (engine inlet) dynam-
the fuel relief valve is used in both cases. ic viscosity: 11~14 mm2/s

Since the temperature appropriate for proper

viscosity varies depending on the properties (vis-
cosity) of heavy fuel oil, be minded to keep the
proper viscosity referring to the following figure as
a standard:
（ ：Fig. 6-1.2 "Fuel Oil Viscosity
/Temperature Curve"）

In the case that the viscontroller (automatic vis-

cosity regulator) is installed to the engine, control
the fuel oil viscosity in accordance with instruction
manual, and be minded to carefully keep the man-
ual.(Refer to the following pages)
（ ：4-4.4 "Operation Using Heavy Fuel Oil"）

（ ：6.1 "Fuel Oil Control"）

Heated fuel oil is extremely hot. Touching it

or metallic parts of the oil carrying equipment
with bare hands or skin can cause burns.
Be sure to wear protective gear such as
safety gloves when handling oil or the oil car-
rying equipment.

DE-18 A 12-08
 CHAPTER
Inspection and Maintenance 5
ITEM
Measurement and Adjustment:
Maximum Combustion Pressure DE-18 3.3

5-3.3 Maximum Combustion Pressure

Maximum combustion pressure and exhaust
Since the indicator valve is extremely hot
temperature serve as the important indicators for
during the operation of engine, there is a dan-
knowing the engine combustion conditions and the
ger of burns if it is touched by bare hands.
changes according to the elapse of time.
Therefore, be sure to wear safety gloves
Normally, the decrease of the engine perform-
when handling the valve.
ance can be indicated by the following items.
After the measurement is completed, make
●Decrease of the maximum combustion pressure
sure to attach a heat shield cover over the
●Increase of the exhaust temperature indicator valve.
Conduct the measurement with the interval of
once a week or so, and record the results, so that
the tendency of the change can be identified and Be sure to "Fully open" or "Fully close" both
the data can be used as the judgment materials the indicator valve and the exhaust valves are
when determining the interval of the adjustment. used.
If these valves are used on the "Half-open"
A. Maximum Combustion Pressure (hereinafter state, high-temperature gas will flow into the
referred to as Pmax) threaded parts of the valve, and the screws
a) Pmax may be seized.
Pmax is determined by load, and varies depend-
ing on the factors such as the fuel oil viscosity, b) Measuring Pmax
intake air pressure, and intake air temperature. Perform the measurement of Pmax after the
warming-up operation of engine has been complet-
5
Ordinarily, however, this adjustment is not neces-
sary. ed and the load has become stable.

Pmax varies according to the initial fuel injection During measurement, the measured values may
pumping angle, however, it is readily adjusted and change due to such factors as the occurrence of
set at an optimum value at the time of shipment the load fluctuation. In such a case, perform the
from our factory. measurement again to obtain a stable data.
（ ："Test Run Record" included in the final
Since the items mentioned in this section documents）
will be the items to which the engine setting
value specified in NOx technical code shall be
applied, do not make any change that may
deviate from the setting value.
（ ：0-3 "Engine Conforming to NOx
Technical Code"）

DE-18 A 12-03
CHAPTER
5 Inspection and Maintenance
ITEM
Measurement and Adjustment:
3.3 DE-18 Maximum Combustion Pressure

<Measuring Procedure>
i) Open the indicator valve with a special wrench
for indicator valve before installing the indica-
tor, and close the indicator valve after lightly
releasing it 1~2 times.
ii) Install the indicator to the indicator catch, and
securely lock it by turning the lock nut.
iii) Close the exhaust valve of the indicator.
iv) Open the indicator valve.
v) Check the reading of the pressure on the indi-
cator.
vi) Close the indicator.
vii) Open the exhaust valve of the indicator, and
remove the indicator after indicating reading
has become "O".
viii) Attach a heat shield cover over the indicator
valve.

＊Maximum value (when fully loaded):

20 MPa or less

DE-18 A 12-03
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance: Inspecting Parts around Intake and
Exhaust Valves, and Adjusting Valve End Clearance DE-18 4.1

5-4．Inspection and Maintenance C. Adjusting Valve End Clearance

Since valve end clearance decreases due to the
5-4.1 Inspecting Parts around Intake wear of the valve seat part, and therefore be mind-
and Exhaust Valves, and ed to periodically inspect and adjust it.
Adjusting Valve End Clearance
When the valve end clearance is too small, it
A. Replacing Consumables, Implements and causes improper setting of the valve on its seat
Measuring Instruments during the operation of engine due to thermal
expansion of the valve itself and push rod, result-
a. Replacing Consumables （ : "Parts List"）
ing in burning of the seat.
1. Seal (cylinder head cover) 2-15 No.2
Further, the valve system of this engine is 4-
b. Implements and Measuring Instruments
valve type, having 2 intake valves and 2 exhaust
1. General tools
valves, and a single valve retaining tee is provided
( ："Implements List" in the final documents) to simultaneously push down both pairs of intake
and exhaust valves, and therefore unless the valve
B. Inspecting Parts around Intake and Exhaust end clearance of each pair of both intake and
Valves exhaust valves is equal, the valve pushing force is
Both intake and exhaust valves are the parts unbalanced, resulting in abnormal wear or damage
that are exposed to the most severe conditions of the valve retaining tee and the guide parts.
among all other parts of the engine. Therefore, be
minded to periodically inspect these valves, and
confirm that both valves operate normally.
a. Confirm that there are no abnormal operating
A
5
sounds in both the intake and exhaust valves
during the operation of engine.
b. Check the following points on these valves
before removing the cylinder head cover when
the engine is stopped.
1. Lubricating conditions of the rocker arm and
push rods
2. Lubricating and sludge collecting conditions of
the intake and exhaust valve cotters, and valve
rotators
3. Sludge collecting conditions around the valve <Valve End Clearance Adjusting Procedure>
spring
(1) Place the cylinder in the explosion stroke, and
4. Rotating conditions of the valve rotators close the intake and exhaust valves.
5. Valve end clearance (2) Loosen the lock nuts of the adjusting screws
(A) and (B), and turn back the adjusting screws
(A) and (B).

DE-18 B 15-11
CHAPTER
5 Inspection and Maintenance
ITEM
Inspection and Maintenance: Inspecting Parts around Intake and
4.1 DE-18 Exhaust Valves, and Adjusting Valve End Clearance

(3) Bring the valve end "A" into close contact with
the valve retainer tee, fit a dial gauge to the
valve retainer tee, and tighten the adjusting
screw (A) until the pointer swings. Make sure
that the valve ends "A" and "B" simultaneously
get into contact with the valve retainer tee.
(4) Engage a spanner around the hexagonal
head of the adjusting screw (A), and tighten the
lock nut while paying attention so that the
screw and nut do not slip and turn.
(5) Insert a thickness gauge of the specified thick-
ness into the clearance "C" on the top part of
the valve retaining tee, and adjust the clear-
ance using the adjusting screw (B).

＊Proper clearance : 0.3 mm

(for both intake and exhaust valves)

DE-18 A 12-03
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance:
Inspecting and Maintenance of Fuel Oil Injection Valve DE-18 4.2

5-4.2 Inspecting and Maintenance of

Fuel Oil Injection Valve
Fuel oil high-pressure
Since the conditions of the fuel injection valve block (B)
substantially affect the performance of engine
operation, be minded to periodically inspect it and
conduct the maintenance. However, in the case
Fuel injection
that remarkable changes were found in the maxi- valve (A)
mum combustion pressure, exhaust temperature,
exhaust color, and so on, be minded to conduct Nozzle holder
guide Fuel oil
immediate inspection and maintenance, regardless injection pump
Circular
of the standard inspection and maintenance peri- packing (G)
od.

Since the items mentioned in this section Fuel oil

are the parts to which engine setting value high-pressure
joint (3)
specified in NOx Technical Code shall be con-
firmed, be sure to carry out no change deviat- Fuel oil
high-pressure
ed from the setting values. flange (2) Fuel oil
( ：0-3 "Engine Conforming to NOx injection pump
Technical Code"）

A. Replacing Consumables, Implements, and 5

Measuring Instruments
a. Replacing Consumables

（ ："Parts List"）
1. O-ring 2-24.1 No.11
2. O-ring 2-24.1 No.14
3. O-ring 2-24.1 No.502
4. O-ring 2-24.1 No.503
5. O-ring 2-24.1 No.505
6. Gasket 2-24.1 No.506
b. Implements and Measuring Instruments
1. General tools and measuring instruments

( ：Final documents)
2. Fuel oil injection valve extracting tool

( ：3-1.2 in Maintenance Manual）

3. Fuel oil injection testing device
4. Nozzle cleaning implement

DE-18 A 12-03
CHAPTER
5 Inspection and Maintenance
ITEM
Inspection and Maintenance:
4.2 DE-18 Inspecting and Maintenance of Fuel Oil Injection Valve

B. Extracting Fuel Oil Injection Valve C. Injection Test

Extraction of the fuel oil injection valve can be Conduct the injection test of the fuel injection
conducted in the following procedure: valve, to check if the opening pressure and the
spraying conditions of the fuel oil injection valve
<Extracting Procedure> are in the proper and normal state.
(1) Remove the cylinder head cover and heat box Conduct the fuel injection test using the injection
cover. test device installed to the engine.
(2) Loosen the bolts (E) and (F), and remove the
a. Inspecting Valve Opening Pressure
fuel high-pressure block (B).
(1) Install the fuel oil injection valve on the injec-
(3) Remove the inlet connector (C).
tion test device, after removing the carbon
(4) Remove the tightening nut (D) using a box
stuck on the tip of the injection valve, and
wrench.
cleaning the tip of the injection valve.
(5) Extract the fuel oil injection valve (A) using a
(2) Connect the test pump and the fuel oil injec-
fuel oil injection extracting implement.
tion valve with a high-pressure pipe for testing.
(6) Loosen the circular packing (G).
(3) Quickly operate the test pump lever several
times, and drain the air until the valve starts
injection of the fuel oil as the manometer scale
1) Be careful so that the circular packing (G)
swings.
may not be left behind in the cylinder head.
(4) Slowly turn the test pump lever (once every
2) After removing the fuel oil high-pressure
second, or so), check the pressure reading (the
block and the fuel oil injection valve, be
pressure, that increased gradually, suddenly
minded to place the cover both on the cou-
starting to decrease due to opening of the
pling part of the fuel oil injection pump and
valve).
the insertion part of the cylinder head to
prevent foreign matter from entering them.
＊Normal pressure: 32.5~33.5 MPa

(b)-(1) b．Adjusting Valve Opening Pressure

When reassembling the fuel injection valve after
conducting the maintenance work by extracting the
(b)-(3) valve out of the engine, and when the nozzle is
replaced with a new one, adjust the valve pressure
(b)-(2) in the following procedure.
(b)-(4)

<Valve Opening Pressure Adjustment

Procedure>
(1) Remove the cap nut (A).
(2) Loosen the lock nut (J) for the adjusting screw
(I).

Fuel Injection Valve Extracting Procedure

DE-18 B 12-11
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance:
Inspecting and Maintenance of Fuel Oil Injection Valve DE-18 4.2

(3) Adjust the pressure to the specified pressure

by turning the adjusting screw using a screw-
driver, while conducting the injection of the fuel
oil, as in the same procedure as in the case of
the fuel oil injection test.
●Screwing-in adjusting screw → High
●Turning-back adjusting screw → Low
(4) Tighten the lock nut (J).

Be minded to set the pressure of the fuel

injection valve at a rather higher level, taking
into consideration the initial conformity, in the
case that a new injection valve is introduced.
34~35 MPa

c. Inspecting Fuel Oil Injection

Inspect the fuel oil injecting conditions on the fol-
lowing procedure:
(1) Quickly operate the test pump lever several
times (2~3 times every second), and inspect
the fuel oil injecting conditions. (Let the fuel oil
injected against a blank paper so that the con-
5
ditions can be better inspected.)
● Check for drop due to injection --- Injection
sound
● Check if injection is evenly and clearly sprayed,
is not of bar pattern, not dripping down.
(2) Check if there is no dripping-down of fuel oil
from the tip of the nozzle after the injection test.

Be minded not to approach your face or

hands near the fuel spray during testing.
If the high-pressure fuel oil has hit your face
or hands, it causes injuries.

DE-18 A 12-03
CHAPTER
5 Inspection and Maintenance
ITEM
Inspection and Maintenance:
4.2 DE-18 Inspecting and Maintenance of Fuel Oil Injection Valve

D. Disassembling and Inspecting Nozzle

In the case that a remarkable decrease of the
valve opening pressure, faulty injection of fuel oil, If the retaining nut is turned while the
or dripping-down of fuel oil after injection is found adjusting nut is still tightened, it causes dam-
as the results of the fuel injection test, conduct dis- age the nozzle or fuel oil injection valve parts.
assembling, cleaning, and inspection in the follow- In the case that heavy fuel oil is used, the
ing procedure: retaining nut and nozzle may be stuck togeth-
er with carbon accumulated on them.
If the nut is loosened in this state, the noz-
a. Disassembling the Nozzle
zle turns together with the nut, and may dam-
(1) Remove the cap nut (H). age the nozzle, or the knock pin of spacer,
(2) Loosen the adjusting screw (I). and therefore first lubricate the nut with gas
(3) Fix the holder housing (K) in a vise, and oil, and then carefully loosen the nut by strik-
loosen the retaining nut (M). ing the nozzle with a hammer, while placing a
patch on the nozzle.
(4) Extract the needle valve out of the Nozzle (L).
(5) Extract the nozzle out of the retaining nut by
striking with a hammer, while placing a pipe-
type patch on the nozzle so as not to damage
Since the nozzle and the needle valve is a
the injection hole of nozzle.
pair functioning together, be minded not to
b. Inspecting Nozzle replace either of them separately.
(1) Clean the nozzle nut and needle valve with Do not try to reuse a faulty nozzle by wrap-
gas oil. ping, but be sure to replace it with a new one.
(2) Clean the nozzle hole using a nozzle cleaning
implement.
(3) Push in and push out the needle valve with
your hand, and check the movement.
● Check if the movement is smooth or not.
● Check if the movement is too loose.

Nozzle cleaning
implement

DE-18 A 12-03
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance:
Inspecting and Maintenance of Fuel Oil Injection Valve DE-18 4.2

E. Assembling Fuel Oil Injection Valve

Assemble the fuel oil injection valve in the
reverse order of the disassembling procedure.
(1) Clean each of the disassembled parts with
clean gas oil, and insert each of them back into
the holder housing (K).
(2) Put the spacer (P) and the knock pin (Q) of
nozzle together, and install them into the holder
housing.
(3) Apply the lubricant (Molykote U Paste) on the
holder housing thread, the seating face of the
retaining nut (M), and the outer periphery of the
nozzle, and screw the retaining nut into the
holder housing by your hand.
(4) Loosen the adjusting nut (I).
(5) Tighten the retaining nut with the specified
torque.

＊Specified torque: 210 N•m

5
Be careful not to tighten the retaining nut
with the torque over the specified value, since
it may cause the sticking of the needle valve
of the nozzle.

(6) Set the fuel oil injection valve on the inspec-

tion test device, and adjust the valve opening
pressure.
（ :5-4.2 (2) "Injection Test"）

DE-18 A 12-03
CHAPTER
5 Inspection and Maintenance
ITEM
Inspection and Maintenance:
4.2 DE-18 Inspecting and Maintenance of Fuel Oil Injection Valve

F. Mounting Fuel Oil Injection Valve

(1) Secure the flange (R) on the holder (K) with
Fuel oil high-pressure
the bolt (S). block (B)
(2) Apply grease to the O-rings, and attach them
to the holder housing (K).
(3) Apply grease to the circular packing, and fit it Fuel injection
to the holder housing. valve (A)

(4) Insert that fuel oil injection valve into the noz-
Nozzle holder
zle holder guide hole, after confirming that the guide Fuel oil
old gasket is not left behind in the guide hole. Circular injection pump
packing (G)
(5)Tighten them with the specified torque after
fitting tightening nut (D).

Fuel oil
＊ Specified torque: 60 N•m high-pressure
joint (3)

(6) Insert the inlet connector (C) into the cylinder Fuel oil
high-pressure
head. flange (2) Fuel oil
(Set the slit of the inlet connector (C) on the fuel injection pump

high-pressure block (B) side.)

(7) Fit the fuel high-pressure flange (2) on the fuel
oil injection pump side through the O-ring.
(8) Fit the O-ring between the fuel high-pressure
block (B) and the fuel high-pressure flange (2),
and insert the fuel oil high-pressure joint (3)
into the fuel oil high-pressure flange (2).
(9) Fit the fuel high-pressure block (B) and the O-
ring on the cylinder header side, apply lubricant
(Molykote 1000 Spray) to the seats and threads
of the fuel high-pressure block tightening bolts
(E) and (F), and tighten them to the specified
torque.

＊ Specified torque: 40 N•m

DE-18 B 12-11
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance: Cleaning Filters DE-18 4.3

5-4.3 Cleaning Filters

The filters for fuel oil and lubricating oil are
important parts that are necessary for removing
foreign matters and sludge from oil to keep oil and
air clean and ensure that each part of the engine
operates normally. Therefore, it is necessary to
periodically open and clean the filters to prevent
degradation of their filtering capabilities.
For fuel oil, notch wire duplex filter is used, and
for lubricating oil, auto back wash filter and cen-
trifugal bypass filter are used.

A. Notch Wire Duplex Filter (Fuel Oil)

The notch-wire duplex type filter is normally
used as both-side-parallel application.
Since the pressure decreases if the filter has
been fouled, be minded to periodically conduct
blow-off cleaning. In case that the pressure does
not increase even after the blow-off cleaning, over-
haul the filter and then clean it.

a. Replacing Consumables
5
（ ："Parts List"）
1. O-ring 3-2.5.1 No.514
2. Packing 3-2.5.1 No.152
3. Packing 3-2.5.1 No.266

b. Blow-Off Cleaning
In the case of blow-off cleaning, deposits can be
removed by reversely flowing the fluid through the
element on one side, and this type of cleaning has
no cleaning effect when the element is substantial-
ly clogged, and therefore be minded to conduct the
blow-off cleaning in the earlier state, while the
fouled degree of filter is still light. (The cleaning
should be conducted at least once a week.)

DE-18 Z 12-01
CHAPTER
5 Inspection and Maintenance
ITEM

4.3 DE-18 Inspection and Maintenance: Cleaning Filters

<Blow-off Cleaning Procedure> (2) Open the drain valve  and loosen the air
(1) Open the drain cock  at the bottom part of vent valve  at the top of the case  and dis-
filter. charge oil.
At this time, be careful so that waste oil will (3) Pull out the hexagon cap nut  and air vent
not scatter or overflow from the valve. valve  to remove the air vent pipe .
(2) Turn the selector cock handle  (usually, set (4) Clean the element with washing oil or gas oil,
to "Used position on both sides" ) to the and conduct blow-off cleaning from the inside.
"Blow-off" position  (about 60°), and quickly (5) Clean each of the parts overhauled and the
conduct the operation to return the handle to
grooves for case packing of the filter housing
the previous position (within 0.5~1 sec.)
.
(3) Repeat this operation 2~3 times.
(4) Also conduct the above same procedure on
the other side.
(5) Close the drain valve.

Conduct the blow-off cleaning quickly.

Further, do not place the lever on the mid-
dle position, but quickly move to the specified
position (knock position).
If too much time has been taken in blow-off
cleaning and switching the lever positions, the
pressure decreases, and may activate the
alarm or emergency stop.

c. Overhaul and Cleaning of Filters

Be minded to perform overhauling and cleaning
of filters when the engine is stopped.

When heavy fuel oil is in use, the fuel oil is

heated causing filters and piping to be
extremely hot. Therefore, when handling the
filter, be sure to wear the safety gloves, and
be cautious so that the high-temperature oil
may not splash on the skin or clothes.

[Overhaul and Cleaning of Filters]

(1) Turn the selector cock handle  to the
"Close" position  (90°) on the side to be over-
hauled.

DE-18 Z 12-01
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance: Cleaning Filters DE-18 4.3

[Assembly and Restoration]

(1) Attach the packing  to the element , and
attach the packing  to the filter housing .
(2) Put the spring  on the element, place the
case  over the spring, and screw the nut 
into the case while holding the case with your
hands.
(3) Attach new packing to the upper and lower
sides of air vent pipe  joint and assemble the
hexagon cap nut  and air vent valve  and
tighten with the hexagon cap nut .
(4) Close the drain cock .
(5) Shift the handle  the "Blow-off position" .
(6) When the filter is overhauled and cleaned
while the engine is stopped, conduct priming
and fill the case with oil.
(7) Close the air vent valve , after the oil is let
overflow until air bubbles are completely van-
ished from the oil flowing out of the air vent
pipe. 5
(8) Return the handle to "Both sides used posi-
tion" .
(9) Check if there is any oil leakage from the gas-
ket sections.

After blow-off operation or after overhauling,

check that the detent plug  is fit into the (1) Check conditions of the sludge collected
selector cock . on the element.
If the detent plug  is not properly engaged If metallic particles are found, investigate
in the position, the handle is overturned by the causes and take the countermeasures.
vibration during the operation of engine, and it (2) When the element is damaged, or when
may incur oil spill-out accidents. the element is excessively fouled and clog-
ging cannot be removed even by cleaning,
replace the element with a new one.
(3) Since the packing and O-ring are easily be
damaged, be very careful in handling these
parts. Be minded to replace the deteriorate
parts in high-temperature conditions.

DE-18 Z 12-01
CHAPTER
5 Inspection and Maintenance
ITEM

4.3 DE-18 Inspection and Maintenance: Cleaning Filters

B. Auto Back Wash Filter (Lubricating Oil) (3) Fix the nozzle part of rotor assembly with a
Please refer to the separately provided, vice, etc.
“Maintenance Edition”, for instructions on how to
handle this filter.
（ ：Separately provided "Lubricating Oil When fixing the nozzle part of rotor assem-
Auto Back Wash Filter"） bly, use care not to damage the nozzle or the
spindle bearing.
C. Centrifugal Bypass Filter (Lubricating Oil)
(4) Remove sludge deposited on the inner side of
• Centrifugal bypass filter systematically supple-
case cover (2) and rotor assembly with a spatu-
ments sludge to the rotor inner wall by the cen-
la, etc.
trifugal force mechanically generated by the
(5) Clean the case cover (2) and rotor assembly
rotational movement of rotor induced in
with washing oil, etc.
response against the squirting of lubricating oil
triggered from the internal rotor nozzle. (6) Pour washing oil into the rotor assembly and
observe how it comes out from the nozzle to
• Keep the valve at the filter inlet fully open during
check if it is clogged or not.
engine operation and close it during cleaning of
the filter or when any error occurs in the filter,
e.g. when abnormal sound or abnormal vibra-
Remove the sludge completely. If any
tions are generated.
sludge is remaining, vibration will occur during
• When sludge is deposited and the rotor
rotation due to lack of balance, causing dam-
becomes heavy, the rotation speed may be
age in the bearing.
slowed or the rotation may come to a halt, dis-
abling further supplementation of sludge. Make (7) Check for any damage in the case cover (2) or
sure to perform cleaning at least once every case assembly bearing.
week. (Generation quantity of sludge differs
according to the operating condition of the
b. Assembly and Restoration
engine. Adjust the cleaning cycle by observing
Conduct the assembly by reversing the order of
the supplementing conditions.)
disassembly.

Perform bypass filter cleaning at the time of Check if there is any damage in the O-ring.
engine shutdown. Performing disassembly Before assembling the case cover (2), con-
while the engine is in operation is dangerous, firm that the rotor assembly rotates smoothly.
as mist gas may gush out.

a. Disassembly and cleaning

Disassembly and cleaning shall be performed
according to the following procedure.
(1) Remove the band clamp (1) and remove the
case cover (2).
(2) Remove the cover nut (3) and extract rotor
assembly.

DE-18 Z 12-01
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance: Cleaning Filters DE-18 4.3

Winding the paper (4) entirely around the inner

side of rotor assembly makes sludge removal from
the rotor assembly easy.
（ ：Separately provided "Lubricating Oil
Bypass Filter"）

DE-18 Z 12-01
CHAPTER
5 Inspection and Maintenance
ITEM
Inspection and Maintenance:
4.4 DE-18 Cleaning Turbocharger Compressor

5-4.4 Cleaning Turbocharger Compressor

If the fouled degree of the turbocharger com-
pressor progresses, the efficiency of the tur- The turbocharger is at a high-temperature
bocharger decreases and the operating perform- during operation and just after the engine is
ance of engine is worsened. Follow the instruc- stopped. If you touch it with bare hands during
tions on each turbocharger manual, is performed cleaning, you may burn your hands. Wear
compressor cleaning on a regular basis, please safety gloves without fail.
inhibiting the progression of the fouled.

（ ：Separately provided "Turbocharger

Instruction Manual"）

Be minded never to use gas oil or any other

flammable liquid for cleaning, since these liq-
uids will be the cause of fire.

AT14 MET TPS

CKT CKT
CKT

Cleaning Turbocharger Compressor Schematic Diagram

DE-18 A 14-03
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance:
Cleaning Turbocharger Turbine DE-18 4.5

5-4.5 Cleaning Turbocharger Turbine

As dirt collects on the turbine side of the tur-
bocharger as on the compressor side, the tur-
bocharger efficiency lowers, and the engine per-
formance deteriorates.
Particularly, when heavy fuel oil is used, follow
Exhaust
the instructions on each turbocharger manual, is manifold
performed turbine cleaning on a regular basis,
please inhibiting the progression of the fouled.
（ ：Separately provided "Turbocharger
Instruction Manual"） Cap [2]

Cleaning
piping
Compressed air
The turbocharger is at a high-temperature
during operation and just after the engine is
stopped. If you touch it with bare hands during Valve [1]

cleaning, you may burn your hands. Wear Valve [3]

safety gloves without fail.
Tank

Turbine Cleaning (MET)

5
Exhaust manifold

Nozzle

Cleaning
piping Cleaning
piping

Valve (V1)

Drain valve (V3)

Valve (V2)
(0.15 MPa)

Fresh water
Fresh water
Regulate the water pressure 0.15 MPa Regulate the water pressure 0.25~0.5 MPa

Turbine Cleaning (AT14) Turbine Cleaning (TPS)

DE-18 A 14-03
CHAPTER
5 Inspection and Maintenance
ITEM
Inspection and Maintenance:
4.6 DE-18 Measuring Crankshaft Deflection

5-4.6 Measuring Crankshaft Deflection C. Measuring Deflection

<Measurement procedure>
(1) Open the indicator valve, and perform turning
the crankshaft.
If the crankshaft deflection exceeds its limit,
the stress to be applied to the crankshaft (2) Place the crank pin at the point of 30° (posi-
becomes excessive, and it results in the tion "B") past the bottom dead center.
breakage of crankshaft if the excess of deflec- (3) Mount the deflection gauge as shown in the
tion is too large. figure (Deflection Gauge Mounting Position).
Therefore, adjust the crankshaft deflection
to the proper value when being installed, and
periodically measure the deflection, so that it Be careful not to interfere with the threaded
can be corrected whenever it is over the limit connecting rod bolt during turning the crank
value. shaft.

A. Replacing Consumables and Measuring (4) Set the reading on the gauge scale to +20 at
Instruments the position "B" in the Figure. (To make clear
a. Replacing Consumables the positive and negative directions.)
（ ："Parts List"） (5) Slowly turn the engine in the normal direction
1. O-ring (frame side cover) 2-2 No.3 of rotation, and measure the reading on the
b. Implements and Measuring Instruments scale when the crankshaft is at the angle of
1. General tools "B", "C", "D", "E", and "A" respectively, of which
data shall be recorded.
（ ："Implement List" in the final docu-
ments）
Crank-pin
2. Deflection gauge
3. Mirror

B. Conditions for Measuring Deflection

a. Deflection of the crankshaft varies according to
the temperature. Be sure to measure it when the
engine is in cold state.
200

b. Before measurement, push the contact piece

(143)

of the deflection gauge with a finger, and confirm

that both the contact piece and dial gauge return
to the original positions correctly.
c. In the case of the marine engine, since the
98

Deflection gauge
deflection varies according to the loaded cargo
conditions, be minded to record the conditions of Balance weight
loaded cargo, draft, temperature, and so on, at Gauge head
the same time.

DE-18 A 12-11
 CHAPTER
Inspection and Maintenance 5
ITEM
Inspection and Maintenance:
Measuring Crankshaft Deflection DE-18 4.6

D. Calculating Deflection (d) E. Correction Limit for Deflection

Calculate the deflection values as based on the a. The correction limit shall apply to whichever is
measured values in accordance with the following larger of dV and dH as shown in the following
formula, record the calculated values table.
Ａ＋Ｂ
● Vertical (V) deflection：dV＝Ｄ－
２
● Horizontal (H) deflection：dH＝Ｃ－Ｅ

0.034 or less 0.096

● Positive/negative deflection: Open downward
(+), closing downward (-) 2.8
x x
A, B, C, D, and E represent the measured val-
ues respectively at each corresponding position 0.034 or less 0.096
shown in the figure on the right.
2.8
x x

0.103 or less 0.138

3 4
x x

Note 
Measurement point correction factor = 1.23

b. Deflection varies depending on the connection

5
method (direct connection or flexible coupling)
between the crankshaft and drive equipment,
however, usually, the deflection becomes maxi-
mum at the crank throw that is closest to the fly-
wheel.
Adjust the drive equipment using the adjust-
ing shim or chock liner, so that the deflection
falls when the limited values as shown in the
above table.

The deflection of the crankshaft shall be

represented by the value when the engine is
cold, and when the engine is warm sometimes
differ significantly depending on the measure-
ment conditions, be minded not to use the
value measured when the engine is warm as
standard.

DE-18 A 12-11
CHAPTER
5 Inspection and Maintenance
ITEM
Inspection and Maintenance:
4.6 DE-18 Measuring Crankshaft Deflection

<Reference>
Deflection in warm condition
Values of deflection measured in the hot state
are usually different from those measured in the
cold state.
This is reasoned by the fact that temperature
increase of the engine bed is more than that of the
bearing housing of a generator that is directly driv-
en by the engine, and this raises the crankshaft
more in relation to the driven shaft causing change
in deflection to (deflection is narrower with
the crank pin positioned at the upper side than at
the lower side). This makes difference in deflection
between the hot state and the cold state.
Since this difference in deflection between the
cold and the hot states is thus caused by differ-
ence in dimension of the bearing and in the tem-
perature between the engine and the generator, its
adjustment is not possible and this characteristic of
deflection is considered as the one unique to the
electric generator unit.
We try to adjust the deflection so that the deflec-
tion may be as near to the positive (+) limit (like
/wider with the crank pin positioned at the
upper side) as possible in the cold state in order to
minimize the absolute value of deflection in the hot
state.
Deflection measured in the hot state varies with
temperature, and the value usually changes meas-
urement to measurement. However, to our experi-
ence, they almost fall within a range of 3-4/10000 x
stroke and the direction of deflection is (nar-
rower with the crank pin positioned at the upper
side than at the lower side).
Beware of the fact that temperature of the
engine sometimes quickly increases after its stop-
page and measurements are different from the
proper value due to influence of thermal expansion
caused by temperature difference between the
measurement instrument and the crankshaft.

DE-18 Z 12-01
 CHAPTER
Inspection and Maintenance 5
ITEM
MEMO DE-18

5
CHAPTER
6 Control of Fuel Oil, Lubricating Oil, and Cooling Water
ITEM
Selecting Fuel Oil / Fuel Oil Characteristics and
1.1,1.2 GENERAL Control

6-1 Fuel Oil Characteristics and Control

Fuel oil characteristics will greatly affect the smooth operation of engine, maintenance inter-
vals, as well as the working life of various parts. Therefore control is that the fuel oil characteris-
tics become within the standard value.
When supplying the fuel oil, it is required not only to confirm the characteristics referring to
the characteristics analysis table, but also to conduct the control of the oil in accordance with
each characteristics.
Particularly when using heavy fuel oil, conduct the preprocessing of fuel oil, the control of vis-
cosity (temperature), the purifying of the fuel and the control of lubricating oil without fail, so
that troubles arising from fuel oil can be prevented.

6-1.1 Selecting Fuel Oil

The standard characteristics of the fuel oil appli-
cable to this engine is as shown in a separate Residual oil which is produced by a chemi-
table. cal reaction of FCC method (Fluid Catalytic
cracking method) aften are mixed in fuel oil
( : Table 6-1.1 "Standard Fuel Oil recently.
Characteristics") The mixed oils, such as this, contain rigid
Commercially available fuel oils are consider- alumina silica (catalyst particles), and will
ably different in the characteristics, and even the cause abnormal wear of the various parts of
same type of the fuel oil may show a greatly dif- engine, particularly the parts of the fuel injec-
ferent characteristics depending on the location tion system.
and period of supply. Remove the solid particles by fully utilizing
Therefore, be minded to check the charac- the existing fuel oil pretreatment equipment,
teristics analysis values of the fuel oils after and by reinforcement of purifying performance
each delivery, and try to avoid using the fuel for fuel oil.
oil of which characteristics is excessively dif- In case that the removal of the solid parti-
ferent from those shown in the standard char- cles cannot sufficiently be made with the exist-
acteristics table. ing fuel oil pretreatment equipment, the rein-
forcement of the cleaning equipment will be
required, and when such reinforcement is not
1) The engine specification varies depending possible, it may be required to change the cur-
on the types of the fuel oil to be used. Be rent fuel oil to the oil of a better quality.
minded to confirm the type of the fuel oil
referring to the specification of engine, and
do not use the oil of which grade is lower
than that shown in the specification. 6-1.2 Fuel Oil Characteristics and
Control
In case that the fuel oil of lower grade is
used, troubles may be incurred on the In order to prevent engine components from
operation of engine, due to the faulty com- abnormal wear due to fuel oil property, fuel oil
bustion, troubles on the fuel oil system characteristic criteria at engine inlet should be ref-
equipment, premature wearing of the parts, fered to table 6-1.2.
and so on.
( : Table.6-1.2 [Fuel Oil Control Criteria at
( : Fig.6-1.1 [Combustibility of Fuel Oil;CCAI]) Engine Inlet])
2) Using the blended fuel oil different in the
place of origin should be avoided. If mixed
oil has low affinity, a large amount of
sludge will form, which may be harmful to
the operation.

GENERAL B 16-10
 CHAPTER
Control of Fuel Oil, Lubricating Oil, and Cooling Water 6
ITEM
Fuel Oil Characteristics and Control GENERAL 1.2

(1) Heavy Fuel Oil (H.F.O.)

Since heavy fuel oil contains more carbon
* Kinematic viscosity for fuel oil
residue and impurities, and is higher in its viscosity Engine inlet : 11~14 mm2/s
as compared to diesel fuel oil, bunkered heavy fuel If the temperature control of fuel oil is
oil cannot be immediately used as the fuel oil for improper, and the fuel oil with high viscosity
diesel engine. has been supplied to engine, it will not only
Therefore, it will be a prerequisite to use heavy incur faulty combustion, but also will result in
fuel oil that the oil must properly be preprocessed the accidents such as the clogged or dam-
before being supplied to engine (including the aged fuel oil filter, and the breakage of fuel
removal of impurities by cleaning, and the assur- injection system parts.
ance of proper viscosity by heating).
(2) Diesel Fuel Oil (M.D.O.)
a) Cleaning Fuel Oil
a) Diesel fuel oil has a chacteristics to precipita-
Water, and solid contents such as vanadium,
tion more water, and diesel fuel oil tends to
sodium, alumina, and silica, contained in heavy
generate a large amount of sludge when
fuel oil accelerate the corrosion and wear of the
mixed with the oil of different base oil.
various parts of fuel injection system and fuel
combustion chamber system, substantially affect- Daily conduct the draining-off of the precipita-
ing and reducing the life time of these parts. tion tank and setting tank, so that water or
sludge does not flow into the engine.
For the purpose of removing such impurities, the
fuel oil preprocessing equipment, such as the cen- To remove water or sludge, the centrifugal
trifugal separator and fine filters, are installed. separator is an effective device.
Since these equipment will be of no effect unless b) Diesel fuel oil which is refined by FCC method,
each equipment is properly handled, be minded to may incur faulty start or ignition, and this ten-
operate each equipment in accordance with the cor- dency is particularly obvious in case of low
responding instruction manual. sulfur diesel oil for land vehicles, due to its
low cetane number, if the environmental con-
( : Instruction Manual for each equipment)
ditions, such as ambient temperature or water
temperature, are unfavorable.

Since disposal of fuel oil or sludge will be

In such a case, special measures will be
become necessary to improve starting capability
6
the causes of environmental contamination or
and combustibility of engine, and in such occa-
pollution, be sure to entrust to the authorized
sions, contact our company for consultation.
waste disposal company, not directly handling
or disposing these matters on your own. (3) Gas Oil
Although gas oil contains almost no impurities, it
may cause problems on ignition when the gas oil is
b) Heating Fuel Oil refined by FCC method, just like the case with
Since the viscosity of heavy fuel oil is very high, diesel fuel oil, and therefore be minded to pay par-
it is required to heat the oil, so that a proper vis- ticular attentions to the cetane number of gas oil.
cosity for fuel injection can be obtained.
Further, since gas oil is low in its viscosity and
Since the heating temperature varies depend- is inferior in its lubricity, it may cause abnormal
ing on the viscosity of fuel oil, heat the oil to wear on the sliding parts of fuel oil injection sys-
obtain the proper viscosity, by referring to the fuel tem, and therefore be minded to conduct the
oil viscosity temperature curve on a separate inspection of the fuel injection pump and fuel
page as a standard. injection valve in the earlier stage than usual.
In case that a viscosity controller (automatic
viscosity regulator) is installed on hull side, con-
trol the fuel oil viscosity to its proper value
according to the attached instruction manual.
( : Fig. 6-1.2 "Fuel Oil Viscosity/Temperature
Curve")

GENERAL C 16-10
CHAPTER
6 Control of Fuel Oil, Lubricating Oil, and Cooling Water
ITEM
1.2 GENERAL Fuel Oil Characteristics and Control

(4) Kerosene Oil is required to carry out a special arrangement on

As a countermeasures to prevent air pollution, the engine, and therefore contact our company
there may a case in which kerosene oil may be for consultation before using the oil.
used.
Since kerosene oil is further lower in its cetane
number and is lower in its viscosity than gas oil, it

Table 6-1.1 Standard Properties of Fuel Oils

Heavy Fuel Oil

Type of Fuel Oil Diesel Fuel Oil
IF380 IF700

Classification [ ISO-F ] DMA DMZ DMB RMH380 RMH700

o
40 C 2.0 ~ 6.0 3.0 ~ 6.0 2.0 ~ 11.0
Kinematic Viscosity mm2/s o
50 C 380 700
o
Density (15 C) kg / m3 max 890 890 900 991
o
Flash Point C min 60 60 60 60
o
Pour Point, Summer C max 0 0 6 30
o
Pour Point, Winter C max -6 -6 0 30
Carbon Residue of % max 0.3 0.3
10% residual m/m
Carbon Residue % max 0.3 18
m/m
Ash % max 0.01 0.01 0.01 0.1
m/m
Moisture % max 0.5
v/v 0.3
Sulfur % max 1.5 1.5 2.0 Statutory requirements
m/m
Vanadium mg/kg max 350
Aluminum + Silicon mg/kg max 80
Cetane Number min 40 40 35

(ISO8217:2012)

Table 6-1.2 Fuel Oil Control Criteria

at Engine Inlet Vanadium combines with sodium and so
forth and makes an alloy, which is highly cor-
Component Standards rosive and advances high temperature corro-
Water 0.2 vol. % or less sion (vanadium attack).
Moreover, moisture advances corrosion on
20 mg/kg or less components in the fuel injection system.
Solid Content
(Aluminum content<5 mg/kg) When, in particular, seawater intrudes in the
particles
engine, the corrosion (include high tempera-
Size 5 m or less
ture corrosion) accelerates. You must use the
Lubricity, corrected fuel oil purifier device and try to remove sea-
460 m or less
wear scar diameter water and solid substance as much as you
o
(wsd 1.4 at 60 C)
(Diesel Fuel Oil)
can.

GENERAL C 16-10
 CHAPTER
Control of Fuel Oil, Lubricating Oil, and Cooling Water 6
ITEM
Fuel Oil Characteristics and Control GENERAL 1.2

Density kg/m3
CCAI : Combustibility
900 1040

Increasingly 890
difficult to
combustion 880 1020

870

Unstable
860 1000
combustion

850

840 980

830
Normal
820 960

810

800 940

790

780 920

770 6
760 900
860 880
750
0 100 200 300 400 500 600 700
VISCOSITY mm2/s at 50Υ

Fig 6-1.1 [Combustibility of Fuel Oil : CCAI]

Combustibility of fuel oil

CCAI = D-81-141xloglog (Vk+0.85) We recommend to use fuel oil with CCAI
value below 850 for heavy fuel oil. Since
CCAI : Combustibility
o heavy fuel oil exceeding CCAI value 850
Vk : Viscosity mm2/s at 50 C
o might have engine start failure, start and stop
D : Density kg/m3 at 15 C
the engine on M.D.O. even though it is H.F.O.
starting and stopping specification. A high
CCAI value fuel oil leads to the possibility of
engine damage by unstable combustion at low
load operation.

GENERAL A 16-10
CHAPTER
6 Fuel Oil, Lubricating Oil, and Cooling Water
ITEM
1.2 GENERAL Fuel Oil Characteristics and Control

o o
100 F 50 C
9000
7000
5000
4000 Rw#1
3000 11 10000
Kinematic Viscosity (mm2/s)

2000 10
1500
9 5000
1000
8 2
800
600 7
500 2000
400 1 1500
6
300
250 1000
5
200
150 4 500

100
80
3
60
50 200
40
30
25 100
20
15
14 60
10 2
50
8
6 40
5
1
4
3
2 30
-10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150

Fig. 6-1.2 Fuel Oil Viscosity / Temperature Curve

Example) ձFind the temperature which obtains the proper viscocity (14 mm2/s at engine inlet)
The point at intersect of curve No. 9 with the horizontal line which obtains proper
temperature 130oC.
ղFind the temperature which obtains the proper viscocity (14 mm2/s at engine inlet)
The point at intersect of curve No. 11 with the horizontal line which obtains proper
temperature 140oC.
Note: 1. The viscosity temperature characteristics of fuel oil may slightly differ depending on the original
place of production or its refining process, and therefore confirm the viscosity with a viscometer,
and determine the proper value when actually operating the engine.
2. Kinematic viscosity 1 mm2/s= 1 cSt

GENERAL B 16-10
 CHAPTER
Control of Fuel Oil, Lubricating Oil, and Cooling Water 6
ITEM
MEMO GENERAL

6
CHAPTER
6 Control of Fuel Oil, Lubricating Oil, and Cooling Water
ITEM
2.1,2.2 GENERAL Selection and Control of Lubricating Oil

6-2 Lubricating Oil Characteristics and Control

Lubricating oil only plays an extremely important roles for engine, not only lubricating the
sliding parts but also cooling the various parts, ensuring air tightness, acting as a detergent-dis-
persant, or acting as a neutralizing acids.
For the purpose of maintaining the engine in proper conditions and assuring the smooth oper-
ation, it is indispensable to select suitable lubricating oil brands taking into consideration the
use purpose of engine, the fuel oil to be used, the load to be connected, etc., and to conduct an
appropriate control of the lubricating oil.

6-2.1 Selecting of Lubricating Oil 6-2.2 Control of Lubricating Oil

(1) Engine system oil (1) Purifying of Lubricating Oil
As the system oil for engine, high-grade lubricat- Since fine dust or combustion residue from the
ing oil (CD of API service category, or higher) for combustion chamber enter and mix in the lubricat-
diesel engine shall be used. ing oil, a centrifugal separator is installed to the
Select the lubricating oil of the suitable grade, engine, to eliminate such foreign matters, in addi-
according to the quality of the fuel oil to be used. tion to the filters attached to engine. Use such
The recommended lubricating brands as shown in equipment in correct manner, referring to the
a separate table. instruction manual of each manufacturer.

( : Table 6-2.1 "Recommended Lubricating

Oil Brands") Do not conduct cleaning by injecting water
into lubricating oil.
Mixing water into lubricating oil will cause
Be minded to use the lubricating oil of the degradation of the lubricating oil, such as the
same brand, not mixing the lubricating oil with emulsification of oil, the decrease of total base
the oil of any other brand. number, and the increase of insoluble sub-
If the lubricating oil is mixed with the oil of stances.
different brand, the additives contained in the
both oils react for each other, and this may
result in the degradation of the lubricating oil.
(2) Control of Lubricating Oil Characteristics
Periodically conduct the sampling and analysis
of lubricating oil (every 500 hours), and in case
that the analyzed value of the lubricating oil char-
(2) Lubricating Oils for Other Equipment
acteristics has reached the control standard value,
In case that separate lubricating system is
immediately consult the lubrication oil manufactur-
employed apart from the engine lubricating sys-
er, so that the replacement or makeup can be car-
tem, as in the case of the governor, air motor, tur-
ried out.
bocharger,generator,reduction gear, etc., be mind-
ed to refer to the instruction manual of each equip- ( : Table 6-2.2 "Lubricating Oil Control
ment.
Standards")
( : "Instruction Manual of each equipment")

GENERAL B 16-10
 CHAPTER
Control of Fuel Oil, Lubricating Oil, and Cooling Water 6
ITEM
Control of Lubricating Oil GENERAL 2.2

a) Sampling Procedure <Information to be Attached to Sample

i ) Collect samples from such as the air vent pipe Receptacle>
of the filter during the operation of engine.
If the samples are collected from the drain ① Name of your company and your name
cock, the analyzed value of the characteristics ② Model number of engine
may show a different value due to the mixing
of sludge or solid deposits. ③ Engine number
ii) The minimum amount of sampling shall be ④ Data and location of sampling
500 cm 3.
⑤ The running hour of the engine
iii) Attach on the sampling receptacle with the
label indicating the information as shown on ⑥ Lubricating oil brand
the right. ⑦ The total operation time and quantity of
lubricating oil
b) Lubricating Oil Control Standards ⑧ Replenishment record (Data and quantity of
The lubricating oil control standards are as
replenishment)
shown in the Table 6-2.2 below.
Of all the lubricating oil control standards, the
total base number and n-pentane insoluble are
particularly important for the purpose of checking
the degradation degree of lubricating oil. (1) Total Base Number (TBN)
Total base number represents the quantity
Table 6-2.2 of potassium hydroxide (KOH) that corre-
Lubricating Oil Control Standards (System oil) sponds to the quantity of acid required to neu-
tralize the base component contained in 1 g of
Diesel Heavy
Fuel oil used fuel oil fuel oil lubricating oil, and is indicated by the unit of
mgKOH/g.
Total base
mgKOH/g 3 or more 10 or more Total base number indicates the lubricating
number 1)
oil capabilities to prevent the corrosion due to
Total base
number 2)
mgKOH/g 5 or more 15 or more sulfuric acid generated from sulfur contained
in fuel oil, and other acids, and further it indi-
6
Kinematic mm2/s +30% or less / -20% cates the capabilities of lubricating oil to clean
o o
Viscosity (@ 40 C, 100 C) or more of new oil and disperse the fouled sections in the
engine.
o
Flash point C 180 or higher
(2) Insoluble (= n-pentane soluble)
Water Insoluble is fouling substance that do not
vol. % 0.3 or less
content dissolve in oil, and the main component is
n-pentane soot which is a product of combustion, and
wt. % 2.5 or less 4) calcium sulfate which is a neutralized product.
insoluble 3)
Since these substances do not dissolve even
Notes:
1) The TBN (Total Base Number) represents the values measured in n-pentane which is a solvent, n-pentane
according to ASTM D4739, JIS K2501 (Hydrochloric acid method). insoluble serves as an index to indicate the
2) The TBN (Total Base Number) represents the values measured degradation and fouling degree of lubricating oil.
according to ASTM D2896, JIS K2501 (Perchloric acid method).
3) Insoluble represents the values measured according to
ASTM D893B.
4) In case that the measure value rapidly increased or exceeded 1.5,
measure toluene insoluble according to the ASTM D893B,
and in case of [ n-pentane insoluble - toluene insoluble ] > 0.5,
replace the lubricating oil.

GENERAL D 16-10
CHAPTER
6 Control of Fuel Oil, Lubricating Oil, and Cooling Water
ITEM
2.2 GENERAL Control of Lubricating Oil

Table 6-2.1.1 Recommended Lubricating Oil Brands(SAE30)

Kind of fuel oil DMA, DMZ, DMB RMA10, RMB30 RME180, RMG180 RMG380, RMG500
RMG700
(ISO) (ISO) (ISO) (ISO)
Marine gas oil Up to 200 Sec. Up to 1500 Sec. Up to 7000 Sec.
Name of company or
Marine diesel oil R.W. NO.1 R.W. NO.1 R.W. NO.1

BP ENERGOL BP ENERGOL BP ENERGOL BP ENERGOL

DS3-153 IC-HFX203 IC-HFX303 IC-HFX403
IC-HFX403
BP CASTROL
CASTROL CASTROL CASTROL
MHP153 TLX PLUS203 TLX PLUS303 TLX PLUS403
TLX PLUS403

CHEVRON DELO 1000 Marine

TARO 20 DP 30 TARO 30 DP 30 TARO 40 XL 30
( CHEVRON, TEXACO, CALTEX ) Oil SAE30

MOBILGARD M330
EXXONMOBIL MOBILGARD 312 MOBILGARD M330 MOBILGARD M340
MOBILGARD M340

GULFSEA POWER GULFSEA POWER GULFSEA POWER GULFSEA POWER

GULF
MDO3015 3030 3030 3040

PETROBRAS MARBRAX CCD310 MARBRAX CCD320 MARBRAX CCD330 MARBRAX CCD330

ARGINA T30
SHELL GADINIA AL30 ARGINA T30 ARGINA X30
ARGINA X30

Sinopec TPEO 3012 Sinopec TPEO 3020 Sinopec TPEO 3030 Sinopec TPEO 3040
Sinopec
Sinopec TPEO 3015 Sinopec TPEO 3030 Sinopec TPEO 3040

DISOLA M3020 AURELIA TI3030

TOTAL DISOLA M3015 AURELIA TI3040
AURELIA TI3030 AURELIA TI3040

Note:(1) This table shows lubricating oils classified as SAE30.

We recommend that multigrade oil (SAE10W-30 or 5W-30) be used in extremely cold locations
(minimum ambient temperature: 5oC or less).
(2) Be sure to consult with oil manufacturers before selecting the lubricating oil proper brand that best
suits the fuel oil and operating conditions.
(3) Regarding lubricating oil viscosity, refer to the engine specifications.

GENERAL B 17-05
 CHAPTER
Control of Fuel Oil, Lubricating Oil, and Cooling Water 6
ITEM
Control of Lubricating Oil GENERAL 2.2

Table 6-2.1.2 Recommended Lubricating Oil Brands(SAE40)

Kind of fuel oil DMA, DMZ, DMB RMA10, RMB30 RME180, RMG180 RMG380, RMG500
RMG700
(ISO) (ISO) (ISO) (ISO)
Marine gas oil Up to 200 Sec. Up to 1500 Sec. Up to 7000 Sec.
Name of company or
Marine diesel oil R.W. NO.1 R.W. NO.1 R.W. NO.1
BP ENERGOL BP ENERGOL BP ENERGOL
BP ENERGOL  IC-HFX204 IC-HFX304 IC-HFX404
DS3-154
IC-HFX404
BP CASTROL CASTROL
CASTROL CASTROL
MHP154 TLX PLUS204 TLX PLUS304 TLX PLUS404
TLX PLUS404

CHEVRON DELO 1000 Marine

TARO 20 DP 40 TARO 30 DP 40 TARO 40 XL 40
( CHEVRON, TEXACO, CALTEX ) Oil SAE40

MOBILGARD M430
EXXON MOBIL MOBILGARD 412 MOBILGARD M430 MOBILGARD M440
MOBILGARD M440

GULFSEA POWER GULFSEA POWER GULFSEA POWER GULFSEA POWER

GULF
MDO4015 4030 4030 4040

MARBRAX CCD430
PETROBRAS MARBRAX CCD415 MARBRAX CCD420 MARBRAX CCD440
MARBRAX CCD440

ARGINA T40
SHELL GADINIA AL40 ARGINA T40 ARGINA X40
ARGINA X40

Sinopec TPEO 4012 Sinopec TPEO 4020 Sinopec TPEO 4030 Sinopec TPEO 4040
Sinopec
Sinopec TPEO 4015 Sinopec TPEO 4030 Sinopec TPEO 4040

TOTAL DISOLA M4015

DISOLA M4020
AURELIA TI4030
AURELIA TI4030
AURELIA TI4040
AURELIA TI4040 6
Note:(1) This table shows lubricating oils classified as SAE40.

GENERAL D 17-05
CHAPTER
6 Control of Fuel Oil, Lubricating Oil, and Cooling Water
ITEM
Cooling Fresh Water (Raw Water) / Corrosion
3.1,3.2 GENERAL Prevention Agent

6-3 Cooling Water Characteristics and Control

Use the fresh water as cooling water at cylinder jacket for prevention of the corrosion and
deterioration of the cooling effect due to adhesion of the scale.
In case of insufficient control of cooling water, cylinder jacket line can be cause local over-
heating due to the corrosion or adhesion of the scale, and result in the abnormal wear or dam-
age to the engine parts.

6-3.1 Cooling Fresh Water (Raw Water) 6-3.2 Corrosion Prevention Agent
As cooling fresh water (raw water), be minded to (1) As corrosion prevention agent, we recom-
use the soft water that meets water quality stan- mend the agent which is nitrous acid type.
dards shown in Table 6-3.1 below, or the water to
(2) Commercially available brands are shown in
which softening processing has been adminis-
Table 6-3.2.
tered.
When using them, carefully read the manufac-
turer's instruction manual, and properly use
the agent in accordance with the use standard
as well as the control standard.

Table 6-3.1 Fresh Water (Raw Water) Quality Standards

Effect (reference)
Item Standards
Corrosion Scale

PH (25 oC) 6.5 ~ 8.5 (neutral)

Tortal hardness (CaCO3 ) 100 mg/kg Max.

-
Chloride ion (Cl ) 100 mg/kg Max.

M-alkalinity (PH4.8) 150 mg/kg Max.

Sulfate ion (SO42-) 100 mg/kg Max.

Total iron (Fe) 0.3 mg/kg Max.

Silica (SiO2) 50 mg/kg Max.

+
Ammonium ion (NH4 ) 0.05 mg/kg Max.

Evaporation residue 400 mg/kg Max.

GENERAL D 16-10
 CHAPTER
Control of Fuel Oil, Lubricating Oil, and Cooling Water 6
ITEM
Corrosion Prevention Agent / Control of Cooling
Water GENERAL 3.2,3.3

Table 6-3.2 Brands of Commercially Available Corrosion Prevention Agents

Brand Name Manufacturer Constituent Amount to added (ppm)

DEWT-NC 3,000~4,500
Drew Chemical Corp. (USA) Nitrite
MAXIGARD 20,000~22,000
COOLTREAT 101
Hauseman Marine Chemical (USA) Nitrite 1,250~5,000
COOLTREAT 102
CWT DIESEL 102 VECOM B.V. Nitrite 1,250~5,000
Note: Adjust the amount appropriately in the specified range depending on circumstances.

6-3.3 Control of Cooling Water

(1) As cooling water, be minded to use fresh (2) Controlling Fresh Water with PH Value
water added with corrosion prevention agent, Measure the PH value of cooling water once
from the stage of very first beginning, without every week, using a PH meter, and in case that
fail. the value has exceed the standard value speci-
fied by the manufacturer, discharge 10 to 20%
of the cooling water to add new water.

Corrosion prevention agent is poisonous (3) Replace the entire amount of cooling water
and toxic substance. Therefore, be minded once every year or 2 years.
never to drink the cooling water that is added
with corrosion prevention agent.
Further, regarding the handling of the cool-
ing water added with corrosion prevention Be minded never to directly discharge the
agent, be sure to wear the protective gears
such as rubber gloves and masks, so that
cooling water, which are added with corrosion
agent, into sea or river, without adequate pro- 6
your hands or skin do not directly touch the cessing.
cooling water. When disposing the cooling water, be sure
If the corrosion prevention agent has acci- to conduct the water examination, to ensure
dentally touched your skin or entered your that the COD concentration of cooling water is
eyes or mouth, immediately wash them with diluted to be within the specified value.
fresh water sufficiently.

GENERAL B 16-10
CHAPTER
Troubleshooting and Countermeasures
7
ITEM

1 DE-18 Precautions for Troubleshooting

7. Troubleshooting and Countermeasures

Defect or failure of the engine is caused not only by faulty or improperly adjusted engine
parts, but also by faulty equipment, improper operation and maintenance work, in addition to the
courses attributable to fuel oil characteristics. More often than not, each engine problem is
caused by two or more causes that are interrelated. Therefore, it is impossible to provide the
descriptions of the countermeasure for every single defect or failure.
This chapter describes the defects and problems that are frequently found on engines, as well
as the generally probable causes and countermeasures for such defects and problems. If your
engine has a defect or failure that is not described in this section, or if you cannot discover the
causes after inspection, contact our Service Department.

7-1 Precautions for Troubleshooting

A. Take proper measures immediately when you find a defect or problem.
If any of the following defects and failures is found, stop the engine for inspection. Never attempt to
restart the engine until you find the cause, take proper measures, and restore the engine to the normal
operating conditions. Resuming operation without taking proper measures may rapidly aggravate the
defect or failure, resulting in injuries or accidents.
1. Activation of protective device: "Alarm", "Emergency Stop"
Overspeed, low lubricating oil pressure, high cooling water temperature, etc.
2. Abnormal sounds (especially mechanical sounds), abnormal vibrations
3. Overheating of the engine
4. Abnormal increase of exhaust temperature or abnormal decrease of exhaust temperature
5. Defective parts on or around the engine control (governor, control device), or protective device, loosened
link, or detachment of link
6. Damage to piping or joint bolts (especially fuel and lubricating oil systems)

B. Inspect, disassemble, and adjust the engine correctly according to the instruction manual. To prevent
accidents, never neglect "Safety Precautions".

C. Be sure to use the genuine parts of DAIHATSU DIESEL MFG. CO., LTD. or those specified in the parts
list. We cannot thereafter guarantee the proper operation of the engine unless such parts are used.
If you are out of the spare parts for servicing, immediately control us for replenishment.

Instruments such as tachometers, thermometers, and pressure gauge may provide incorrect indica-
tion even if the engine is running normally.
Inspect the instruments on a daily basis to make sure their indication is correct. Replace any defects
instrument. Always use correct indications as an index for determining the engine conditions.

DE-18 Z 12-01
 CHAPTER
Troubleshooting and Countermeasures
7
ITEM
Starting Defect DE-18 2.1
7-2 Troubleshooting and Countermeasures
7-2.1 Starting Defect
[Phenomenon] [Trouble] [Countermeasures]

DE-18 Z 12-01
CHAPTER
Troubleshooting and Countermeasures
7
ITEM
2.2, 2.3 DE-18 Engine Revolution is Not Smooth / Insufficient Output

7-2.2 Engine Revolution is Not Smooth

[Phenomenon] [Trouble] [Countermeasures]

7-2.3 Insufficient Output

[Phenomenon] [Trouble] [Countermeasures]

DE-18 Z 12-01
 CHAPTER
Troubleshooting and Countermeasures
7
ITEM
Abnormal Exhaust Gas Temperature or Maximum
Combustion Pressure DE-18 2.4

7-2.4 Abnormal Exhaust Gas Temperature or Maximum Combustion Pressure

[Phenomenon] [Trouble] [Countermeasures]

DE-18 A 14-03
CHAPTER
Troubleshooting and Countermeasures
7
ITEM

2.5 DE-18 Abnormal Exhaust Gas Color

7-2.5 Abnormal Exhaust Gas Color

[Phenomenon] [Trouble] [Countermeasures]

DE-18 A 14-03
 CHAPTER
Troubleshooting and Countermeasures
7
ITEM
Abnormal Noise / Abnormal Vibration DE-18 2.6

7-2.6 Abnormal Noise / Abnormal Vibration

[Phenomenon] [Trouble] [Countermeasures]

DE-18 A 14-03
CHAPTER
Troubleshooting and Countermeasures
7
ITEM

2.7 DE-18 Engine Sudden Stop

7-2.7 Sudden Engine Stop

[Phenomenon] [Trouble] [Countermeasures]

DE-18 Z 12-01
 CHAPTER
Troubleshooting and Countermeasures
7
ITEM
Unable to stop Engine / Overspeed DE-18 2.8, 2.9

7-2.8 Unable to Stop Engine / 7-2.9 Overspeed

[Phenomenon] [Trouble] [Countermeasures]

DE-18 Z 12-01
CHAPTER
Troubleshooting and Countermeasures
7
ITEM
2.10,2.11 DE-18 Low Lubricating Oil Pressure / High Lubricating Oil Temperature

7-2.10 Low Lubricating Oil Pressure

[Phenomenon] [Trouble] [Countermeasures]

7-2.11 High Lubricating Oil Temperature

[Phenomenon] [Trouble] [Countermeasures]

DE-18 Z 12-01
 CHAPTER
Troubleshooting and Countermeasures
7
ITEM
Low Cooling Water Pressure (Jacket Line)
/ High Cooling Water Temperature / Low Cooling Water Temperature DE-18 2.12,13,14

7-2.12 Low Cooling Water Pressure (Jacket Line)

[Phenomenon] [Trouble] [Countermeasures]

7-2.13 High Cooling Water Temperature (Jacket Line)

[Phenomenon] [Trouble] [Countermeasures]

7-2.14 Low Cooling Water Temperature (Jacket Line)

[Phenomenon] [Trouble] [Countermeasures]

water to standby engine

DE-18 Z 12-01
 6DE-18
INSTRUCTION MANUAL
( MAINTENANCE )

V08
● Replacement Parts
. Hazards and nonconformities of imitation parts
<Use of imitation parts causes accidents.>

1. Recent engines have compact bodies and high power, and are designed to prevent fuel
deterioration and to reduce NOx discharge. Even if imitation parts are similar in shape
to the genuine parts, the use of imitation parts will degrade the engine performance
because of their fragile materials and low machining accuracy. Since the service life of
such parts is short, the engine must be maintained more frequently.
2.If imitation parts are used for the engine conforming to NOx Technical Code, the certificate
(EIAPP) may lose its validity, and operation of the engine may be inhibited.
3. If you use imitation parts, you will not be supplied with parts improved in quality and
performance.
4. If imitation parts are used, it may be difficult to make insurance claims for the engine
when any accident occurs.
5. We take no responsibility for the engine in which imitation parts are used.

Daihatsu Diesel supplies reliable engines. Use genuine parts to

operate your engine safely.

http://www.dhtd.co.jp

Head Office 1-30, Oyodo Naka 1-chome, Kita-ku, Osaka, 531-0076 Japan
TEL : 81-6-6454-2393 FAX : 81-6-6454-2682
Tokyo Office 2-10, Nihonbashi-Honcho 2-chome, , Chuo-ku, Tokyo, 103-0023 Japan
TEL : 81-3-3279-0827 FAX : 81-3-3245-0359
Moriyama Division 45 Amura-cho, Moriyama-city, Shiga, 524-0035 Japan
TEL : 81-77-583-2551 FAX : 81-77-582-5714

Taiwan Office c/o Marine Technical Industries Co., Ltd.

No.14 Tai-Tang RD, Lin-Hai Industrial Zone, Kaohsiung, 812 Taiwan
TEL : 886-7-803-1082 FAX : 886-7-801-9179

Daihatsu Diesel (Europe) Ltd. Floor 28,One Canada Square,Canary Wharf,London E14 5AA, U.K.
TEL: 44-20-3871-5000 FAX: 44-20-7512-9291

Daihatsu Diesel (AMERICA), Inc. 380 N Broadway, Suite 302, Jericho, N.Y. 11753, U.S.A.
TEL : 1-516-822-3483/4 FAX : 1-516-822-3485
Daihatsu Diesel (ASIA PACIFIC) Pte.Ltd. 16 Collyer Quay, Income at Raffles #29-02, Singapore 049318
TEL : 65-6589-9510 FAX : 65-6536-4964
Daihatsu Diesel (SHANGHAI) Co.,Ltd. Room A-B Floor 14, Huamin Empire Plaza, No. 728 Yanan Rd (w), Shanghai, China
TEL : 86-21-6225-7876/7 FAX : 86-21-6225-9299

201706
 TYPE DE ENGINE
HOW TO ORDER PARTS

For the TYPE DE engine, we have newly adopted a parts control system. To properly control the parts
at the production stage and delivery stage, we have stored the data of each engine, such as specifica-
tions and applicable parts, in the database.
When ordering parts, engine number and parts code ( 8-digit ,10-digit or 12-digit codes) are requested.
Before ordering parts, be sure to check your engine number so that we can promptly send you the right
parts.

Example: How to order parts

Before ordering a part, be sure to check the engine number, part name, and part code.
Engine number: DE618Z0001
(Check the engine number shown in the operation result sheet or the engine
number marked on the actual engine.)
Part name: F. O. NOZZLE
(Check the part name shown in the parts list.)
Part code: 06473-013
(Check the part code shown in the parts list.)

Notes regarding ordering parts:

Various parts of our engines are controlled for each engine. If you use the part once ordered to the
other type of engine, please contact our sales company, and ask whether the part can be used for the
other engine.
Use of the part for the other type of engine may not be possible due to difference in the specifications,
improvement of the part, etc.
If a wrong type of part is used for your engine, an unexpected problem may occur. In addition, if your
engine is conformed to NOx Technical CodeI, the certificate may lose its validity.
For the NOx control parts, be sure to write the parts replacement history in the engine record book to
properly control the parts.
 DE-18 INSTRUCTION MANUAL
(MAINTENANCE)
CHAPTER

CHAPTER 0 INTRODUCTION 0
CHAPTER 1 EQUIPMENT ARRANGEMENT AND MAINTENANCE SCHEDULE 1

CHAPTER 2 GENERAL MAINTENANCE ITEMS 2

CHAPTER 3 CYLINDER HEAD AND VALVES 3
CHAPTER 4 PISTON AND CONNECTING ROD 4
CHAPTER 5 ENGINE FRAME AND CYLINDER LINER 5
CHAPTER 6 MAIN BEARING AND THRUST BEARINGS 6

CHAPTER 7 CRANKSHAFT 7
CHAPTER 8 TIMING GEARS AND CAMSHAFT 8
CHAPTER 9 FUEL OIL INJECTION DEVICE 9
CHAPTER 10 VALVE OPERATING DEVICE 10
CHAPTER 11 GOVERNOR DRIVE UNIT 11
CHAPTER 12 INTAKE AND EXHAUST DEVICE 12
CHAPTER 13 STARTING AIR SYSTEM 13
CHAPTER 14 FUEL OIL SYSTEM 14
CHAPTER 15 LUBRICATING OIL SYSTEM 15
CHAPTER 16 COOLING WATER SYSTEM 16
CHAPTER 17 ENGINE CONTROL AND PROTECTIVE DEVICE 17

CHAPTER 18 GAUGE BOARD 18

DE-18 Z 12-01
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ITEM
CONTENTS DE-18

CHAPTER 0 INTRODUCTION 0
1. Prior to Start of Engine Maintenance 0-1
2. Precautions Pertaining to Maintenance 0-2
2.1 Safety Precautions 0-2.1
2.2 Precautions for Disassembly, Maintenance, and Assembly 0-2.2
2.3 Check Items after Disassembly, Maintenance, and Assembly 0-2.3
3. Engine Conforming to NOx Technical Code 0-3
3.1 Outline 0-3.1
3.2 The Parts to be Specified 0-3.2
3.3 Engine Setting Value 0-3.3

CHAPTER 1 EQUIPMENT ARRANGEMENT AND MAINTENANCE SCHEDULE 1

1. Equipment Arrangement 1-1
2. Maintenance Schedule Table 1-2

CHAPTER 2 GENERAL MAINTENANCE ITEMS 2

1. Preparation before Maintenance Work 2-1
2. General Consumables and Materials/General Tools, Implements, and Measuring Instruments 2-2
2.1 General Consumables and Materials 2-2.1
2.2 General Tools, Implements, and Measuring Instruments 2-2.2
3. Bolt and Nut Tightening Torque, Tightening Oil Pressure 2-3
4. Hydraulic Jack 2-4
4.1 Overview of Hydraulic Jack 2-4.1
4.2 Setting of High-pressure Hoses 2-4.2
4.3 Removal of Nuts 2-4.3
4.4 Tightening of Nut 2-4.4
4.5 Maintenance of Hydraulic Jack 2-4.5

CHAPTER 3 CYLINDER HEAD AND VALVES 3

1. Cylinder Head 3-1
1.1 General of Structure 3-1.1
1.2 Replacement Consumable Parts, Tools and Measuring Instruments 3-1.2
1.3 Disassembly of Cylinder Head 3-1.3
1.4 Inspection and Maintenance of Cylinder Head (body) 3-1.4
1.5 Intake and Exhaust Valve Guides 3-1.5
1.6 Intake and Exhaust Valve Seats 3-1.6
1.7 Nozzle holder guide 3-1.7
1.8 Cylinder Head Reassembly 3-1.8

DE-18 Z 12-01
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DE-18 CONTENTS

2. Intake and Exhaust Valves 3-2

2.1 General of Structure 3-2.1
2.2 Replacement Consumable Parts, Tools and Measuring Instruments 3-2.2
2.3 Disassembly of Intake and Exhaust Valves 3-2.3
2.4 Inspection and Maintenance of Intake and Exhaust Valves 3-2.4
2.5 Inspection and Replacement of Valve Rotators 3-2.5
2.6 Reassembly of Intake and Exhaust Valves 3-2.6
3. Rocker Arm Device 3-3
3.1 General of Structure 3-3.1
3.2 Replacement Consumable Parts, Tools and Measuring Instruments 3-3.2
3.3 Disassembly of Rocker Arm Device 3-3.3
3.4 Inspection and Maintenance of Rocker Arm Device 3-3.4
3.5 Reassembly of Rocker Arm Device 3-3.5
4. Indicator Valve 3-4
4.1 General of Structure 3-4.1
4.2 Replacement Consumable Parts, Tools and Measuring Instruments 3-4.2
4.3 Disassembly of Indicatory Valve 3-4.3
4.4 Inspection and Maintenance of Indicator Valves 3-4.4
4.5 Assembly and Mounting of Indicator Valve 3-4.5
5. Starting Valve 3-5
5.1 General of Structure 3-5.1
5.2 Replacement Consumable Parts, Tools and Measuring Instruments 3-5.2
5.3 Disassembly of Starting Valve 3-5.3
5.4 Inspection and Maintenance of Starting Valve 3-5.4
5.5 Reassembly of Starting Valve 3-5.5
5.6 Replacement of O-rings on Starting Valve Sleeve 3-5.6

ｏFuel Injection Valve ( ：5-4.2 in [Operation Manual])

CHAPTER 4 PISTON AND CONNECTING ROD 4

1. General of Structure 4-1
2. Replacement Consumable Parts, Tools and Measuring Instruments 4-2
3. Disassembly of Piston and Connecting Rod 4-3
3.1 Extraction of Piston 4-3.1
3.2 Disassembly of Connecting Rod Large End Part 4-3.2
4. Inspection and Maintenance of Piston and Connecting Rod 4-4
4.1 Inspection and Maintenance of Piston 4-4.1
4.2 Inspection and Maintenance of Rings 4-4.2
4.3 Inspection and Maintenance of Connecting Rod 4-4.3
4.4 Inspection and Maintenance of Crankpin Bearing 4-4.4
4.5 Replacement of Connecting Rod Bolts 4-4.5

DE-18 Z 12-01
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5. Reassembly of Piston and Connecting Rod 4-5

5.1 Reassembly of Connecting Rod Large End Part 4-5.1
5.2 Reassembly of Piston (in the case of composite pston) 4-5.2
5.3 Reassembly of Piston and Connecting Rod 4-5.3
5.4 Confirmation of Connecting Rod Bolt Tightening Force and Retightening 4-5.4

CHAPTER 5 ENGINE FRAME AND CYLINDER LINER 5

1. General of Structure 5-1
2. Replacement Consumable Parts, Tools and Measuring Instruments 5-2
3. Inspection and Maintenance of Engine Frame 5-4
4. Inspection and Maintenance of Cylinder Liner Inner Surface 5-4
5. Extraction of Cylinder Liner 5-5
6. Inspection and Maintenance of Cylinder Liner Outer Periphery and Engine Frame Jacket 5-6
7. Mounting of Cylinder Liner 5-7

CHAPTER 6 MAIN BEARING AND THRUST BEARINGS 6

1. General of Structure 6-1
2. Replacement Consumable Parts, Tools and Measuring Instruments 6-2
3. Main Bearing 6-3
3.1 Disassembly of Main Bearing 6-3.1
3.2 Inspection and Maintenance of Main Bearing 6-3.2
3.3 Reassembly of Main Bearing 6-3.3
4. Thrust Bearing 6-4
4.1 Removal of Thrust Bearings Metal 6-4.1
4.2 Maintenance of Thrust Bearings Metal 6-4.2
4.3 Reassembly of Thrust Bearings Metal 6-4.3

CHAPTER 7 CRANKSHAFT 7
1. General of Structure 7-1
2. Replacement Consumable Parts, Tools and Measuring Instruments 7-2
3. Inspection and Maintenance of Crankshaft 7-3
3.1 Inspection of Crankpin 7-3.1
3.2 Inspection of Crank Journal 7-3.2
3.3 Inspection of Balance Weight Bolt Tightening Force 7-3.3
3.4 Inspection of Oil Thrower Cover Clearance 7-3.4
4. Measurement of Crankshaft Deflection 7-4

CHAPTER 8 TIMING GEARS AND CAMSHAFT 8

1. Timing Gears 8-1
1.1 General of Structure 8-1.1

DE-18 A 16-08
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ITEM

DE-18 CONTENTS

1.2 Replacement Consumable Parts, Tools and Measuring Instruments 8-1.2

1.3 Disassembly of Idle Gear 8-1.3
1.4 Disassembly of Cam Gear 8-1.4
1.5 Inspection and Maintenance of Timing Gears 8-1.5
1.6 Reassembly of Cam Gear 8-1.6
1.7 Reassembly of Idle Gear 8-1.7
2. Camshaft 8-2
2.1 General of Structure 8-2.1
2.2 Replacement Consumable Parts, Tools and Measuring Instruments 8-2.2
2.3 Disassembly of Camshaft 8-2.3
2.4 Inspection and Maintenance of Camshaft 8-2.4
2.5 Reassembly of Camshaft 8-2.5
2.6 Inspection of Fuel Oil Injection Timing 8-2.6

CHAPTER 9 FUEL OIL INJECTION DEVICE 9

1. General of Structure 9-1
2. Replacement Consumable Parts, Tools and Measuring Instruments 9-2
3. Disassembly of Fuel Oil Injection Pump 9-3
4. Fuel Oil Injection Pump 9-4
4.1 Disassembly of Fuel Oil Injection Pump 9-4.1
4.2 Inspection and Maintenance of Fuel Oil Injection Pump 9-4.2
4.3 Reassembly of Fuel Oil Injection Pump 9-4.3
5. Mounting of Fuel Oil Injection Pump 9-5

CHAPTER 10 VALVE OPERATING DEVICE 10

1. General of Structure 10-1
2. Replacement Consumable Parts, Tools and Measuring Instruments 10-2
3. Disassembly of Valve Operating Device 10-3
4. Inspection and Maintenance of Valve Operating Device 10-4
5. Reassembly of Valve Operating Device 10-5

CHAPTER 11 GOVERNOR DRIVE UNIT 11

1. General of Structure 11-1
2. Replacement Consumable Parts, Tools and Measuring Instruments 11-2
3. Disassembly of Governor Drive Unit 11-3
4. Inspection and Maintenance of Governor Drive Unit 11-4
5. Reassembly of Governor Drive Unit 11-5

DE-18 Z 12-01
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ITEM
CONTENTS DE-18

CHAPTER 12 INTAKE AND EXHAUST DEVICE 12

1. General of Intake and Exhaust System 12-1
2. Turbocharger 12-2
3. Air Cooler 12-3
3.1 General of Structure 12-3.1
3.2 Replacement Consumable Parts, Tools and Measuring Instruments 12-3.2
3.3 Removal of Air Cooler 12-3.3
3.4 Inspection and Maintenance of Air Cooler 12-3.4
3.5 Reassembly of Air Cooler 12-3.5

CHAPTER 13 STARTING AIR SYSTEM 13

1. General of Starting Air System 13-1
2. Starting Valve 13-2
2.1 General of Structure 13-2.1
2.2 Replacement Consumable Parts, Tools and Measuring Instruments 13-2.2
2.3 Disassembly of Starting Valve 13-2.3
2.4 Inspection and Maintenance of Starting Valve 13-2.4
2.5 Reassembly of Starting Valve 13-2.5
3. Starting Rotary Valve 13-3
3.1 General of Structure 13-3.1
3.2 Replacement Consumable Parts, Tools and Measuring Instruments 13-3.2
3.3 Disassembly of Starting Rotary Valve 13-3.3
3.4 Inspection and Maintenance of Starting Rotary Valve 13-3.4
3.5 Reassembly of Starting Rotary Valve 13-3.5
4. Automatic Drain Valve 13-4
4.1 General of Structure 13-4.1
4.2 Inspection and Maintenance of Automatic Drain Valve 13-4.2
5. Switch Box and Handle Switch 13-5

CHAPTER 14 FUEL OIL SYSTEM 14

1. General of Fuel Oil System 14-1
2. Fuel Oil Relief Valve 14-2
2.1 General of structure 14-2.1
2.2 Replacement Consumable Parts, Tools and Measuring Instruments 14-2.2
2.3 Disassembly of Fuel Oil Reliefg Valve 14-2.3
2.4 Inspection and Maintenance of Fuel Oil Relief Valve 14-2.4
2.5 Reassembly of Fuel Oil Relief Valve 14-2.5

DE-18 A 12-03
CHAPTER

ITEM

DE-18 CONTENTS

3. Fuel Oil Feed Pump (Optional) 14-3

3.1 General of structure 14-3.1
3.2 Replacement Consumable Parts, Tools and Measuring Instruments 14-3.2
3.3 Removal of Fuel Oil Feed Pump 14-3.3
3.4 Disassembly of Fuel Oil Feed Pump 14-3.4
3.5 Inspection and Maintenance of Fuel Oil Feed Pump 14-3.5
3.6 Reassembly of Fuel Oil Feed Pump 14-3.6
4. Fuel Oil Feed Pump Drive Unit 14-4
4.1 Disassembly of Fuel Oil Feed Pump Drive Unit 14-4.1
4.2 Maintenance and Assembly of Fuel Oil Feed Pump Drive Unit 14-4.2
ｏFuel Oil Filter ( ：5-4.3 in [Operation Manual])

CHAPTER 15 LUBRICATING OIL SYSTEM 15

1. General of Lubricating Oil System 15-1
2. Lubricating Oil Pump 15-2
2.1 General of Structure 15-2.1
2.2 Replacement Consumable Parts, Tools and Measuring Instruments 15-2.2
2.3 Disassembly of Lubricating Oil Pump 15-2.3
2.4 Inspection and Maintenance of Lubricating Oil Pump 15-2.4
2.5 Reassembly of Lubricating Oil Pump 15-2.5
3. Lubricating Oil Cooler 15-3
3.1 General of Structure 15-3.1
3.2 Replacement Consumable Parts, Tools and Measuring Instruments 15-3.2
3.3 Removal of Lubricating Oil Cooler 15-3.3
3.4 Mounting of Lubricating Oil Cooler 15-3.4
4. Lubricating Oil Relief Valve 15-4
4.1 General of Structure 15-4.1
4.2 Replacement Consumable Parts, Tools and Measuring Instruments 15-4.2
4.3 Disassembly of Lubricating Oil Relief Valve 15-4.3
4.4 Inspection and Maintenance of Lubricating Oil Relief Valve 15-4.4
4.5 Reassembly of Lubricating Oil Relief Valve 15-4.5
5. Lubricating Oil Thermostat Valve 15-5
5.1 General of Structure 15-5.1
5.2 Replacement Consumable Parts, Tools and Measuring Instruments 15-5.2
5.3 Disassembly of Lubricating Oil Thermostat Valve 15-5.3
5.4 Inspection and Maintenance of Lubricating Oil Thermostat Valve 15-5.4
5.5 Reassembly of Lubricating Oil Thermostat Valve 15-5.5
6. Lubricating Oil Automatic Backwash Filter 15-6
6.1 General of Structure 15-6.1
6.2 Replacement Consumable Parts, Tools and Measuring Instruments 15-6.2
6.3 Inspection and Maintenance of Lubricating Oil Automatic Backwash Filter 15-6.3
ｏLubricating Oil Filter ( ：5-4.3 in [Operation Manual])

DE-18 A 12-03
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ITEM
CONTENTS DE-18

CHAPTER 16 COOLING WATER SYSTEM 16

1. General of Cooling Water System 16-1
2. Cooling Water Pumps 16-2
2.1 General of Structure 16-2.1
2.2 Replacement Consumable Parts, Tools and Measuring Instruments 16-2.2
2.3 Disassembly of Cooling Water Pump 16-2.3
2.4 Inspection and Maintenance of Cooling Water Pump 16-2.4
2.5 Reassembly of Cooling Water Pump 16-2.5
3. Cooling Water Bypass Valve 16-3
3.1 General of Structure 16-3.1
3.2 Replacement Consumable Parts, Tools and Measuring Instruments 16-3.2
3.3 Disassembly of Cooling Water Bypass Valve 16-3.3
3.4 Inspection and Maintenance of Cooling Water Bypass Valve 16-3.4
3.5 Reassembly and Mounting of Cooling Water Bypass Valve 16-3.5
4. Cooling Water Thermostat Valve 16-4
4.1 General of Structure 16-4.1
4.2 Replacement Consumable Parts, Tools and Measuring Instruments 16-4.2
4.3 Removal of Thermostat 16-4.3
4.4 Inspection of Thermostat 16-4.4
4.5 Reassembly of Cooling Water Thermostat Valve 16-4.5

CHAPTER 17 ENGINE CONTROL AND PROTECTIVE SYSTEM 17

1. General of Engine Control and Protective System 17-1
2. Fuel Control Cylinders 17-2
2.1 General of Structure 17-2.1
2.2 Replacement Consumable Parts, Tools and Measuring Instruments 17-2.2
2.3 Removal of Fuel Control Cylinders 17-2.3
2.4 Disassembly of Fuel Control Cylinders 17-2.4
2.5 Inspection, Maintenance and Reassembly of Fuel Control Cylinders 17-2.5
2.6 Mounting and Adjustment of Fuel Control Cylinders 17-2.6
3. Fuel Control Cylinders (Variable Speed Engine) 17-3
3.1 General of Structure 17-3.1
3.2 Replacement Consumable Parts, Tools and Measuring Instruments 17-3.2
3.3 Disassembly of Fuel Control Cylinders 17-3.3
3.4 Inspection, Maintenance and Reassembly of Fuel Control Cylinders 17-3.4
3.5 Mounting and Adjustment of Fuel Control Cylinders 17-3.5

CHAPTER 18 GAUGE BOARD 18

1. GAUGE BOARD 18-1
1.1 General of Structure 18-1.1
1.2 Replacement Consumable Parts, Tools and Measuring Instruments 18-1.2
1.3 Disassembly and Maintenance of Gauge Board 18-1.3
2. Seal Pot (for Heavy Fuel Oil Type) 18-2

DE-18 B 15-10
 CHAPTER
Introduction 0
ITEM
Prior to Start of Engine Maintenance DE-18 1

0
0.Introduction

(1) Only skilled operators who have carefully read and fully understood the instruction manual
should operate, inspect and service this machine.
Operation, inspection or servicing by persons inadequately familiar with the machine may
result in personal injury, equipment damage or environmental hazard.
(2) No responsibility shall be assumed whatsoever for product damage or any associated fires,
oil spills or other environmental hazards, personal injuries, property damage or economic
losses caused by the use of non-genuine parts or operation, inspection or servicing that devi-
ates from the instruction manual.
(3) We shall repair new parts or replace any flawed parts made or sold by us, however no com-
pensation shall be provided for damage to any equipment not of our manufacture or cargo, or
personnel, fire-fighting, towing or other expenses arising from the use of such flawed parts or
fowled fuel, lubricant, cooling water or other medium.
(4) This instruction manual is subject to change without notice.

0-1 Prior to Start of Engine Maintenance

Before the maintenance work is performed, read this Manual sufficiently, fully understand the
structure of the parts concerned, and understand well the contents of the work in advance, and
fully understand the working procedure and then start the work. Execution of the work without
sufficient advance understanding not only results in spending useless labors but also lead to
the troubles and damages of the engine due to wrong assembly, and personal accidents as well.
Strictly avoid use of the engine for a purpose other than the original purpose of the use of
engine, or on the conditions that are different from the specified conditions or handling against
the descriptions given herein, since such operation causes accidents or troubles.
Be advised that the descriptions of this manual are subject to change without notice.

A．This manual bears the following safety signs:

These symbol marks indicate the important descriptions concerning safety. Be fully careful, and conduct
the work with the motto of "Safety First".

："Warning"=Precaution related to safety of personnel (Potential hazard which could result in

death or serious injury)
："Caution"=Precaution related to safety of personnel (Potential hazard which may result in minor or
moderate injury)
："Precautions for handling"=Information on handling of the engine to prevent damage

："Prohibition"=Prohibited practice that can affect the safety of personnel and the engine

："Obligatory acts"=Recommended practice or instruction to be followed to ensure safety of person-

nel and the engine

DE-18 Z 12-01
CHAPTER
0 Introduction
ITEM

1 DE-18 Prior to Start of Engine Maintenance

B. Be sure to replace any parts of which damages were found and which reached the limit from the disas-
sembly and inspection.
C. If any parts other than genuine parts or specified parts are used, we do not guarantee the engine quality
after the replacement.
D. If it is difficult to take measures or action at the site or necessary replacement parts are not available,
contact our Service Department or branch office (listed at the head of this document), and take proper
measures.
At that time, be sure to inform us or our agent of the engine type and the engine number.

E. For handling of the following equipment, refer to the Individual Instruction Manuals attached separately.
・Turbocharger
・Governor
・Lubricating oil cooler
・Lubricating oil auto back wash filter
・Lubricating oil centrifugal filter
・Lubricating oil priming pump
・Control equipment
・Ancillary equipment of special specifications

F. Keep this Instruction Manual and the related documents (drawings, materials, etc.) in the specified place
at all times for ready reference by the persons engaged in the operation and maintenance of engine at
any time, and at the same time, when the engine supervisor is changed, the predecessor is requested to
transfer his duties to the successor completely.

G. To prevent environmental pollution, do not thoughtlessly dispose of waste parts or waste liquids. Such
waste parts and liquids should be disposed of by authorized waste disposal firms.

DE-18 Z 12-01
 CHAPTER
Introduction 0
ITEM
Precautions Pertaining to Maintenance: Safety Precautions DE-18 2.1

0
0-2 Precautions Pertaining to Maintenance
0-2.1 Safety Precautions
A. After stop of the engine, do not open the side cover of engine frame for at least 10 minutes, until
the engine cools down sufficiently. If fresh air should flow into the engine, while the engine is not
cooled down, explosion may occur igniting on the oil mist.
B. Revolution of the engine during the disassembly or inspection work causes great hazards such as
injury resulting from entanglement.
● Before starting the disassembly or inspection work, put the control handle position back to the
"STOP" position, securely close the valves on the starting air system, extract starting air on the
engine side, and confirm that the engine does not revolve.
● Be sure to turn OFF the control power.
● When turning the engine, be sure to check that the rotary section is free from contact with other
sections, and that turning of the engine does not bring about hazards to the co-workers or per-
sons in vicinity, and conduct turning with signs exchanged between the workers.
● When moving sections of the engine is disassembled or inspected, take the measures to prevent
the crankshaft from idle turning.
● The turning bar should be removed from the flywheel except when the engine is turned.
C. Before executing the work, use protection wear such as gloves, hard hat, safety shoes, and safety
goggles depending on the applicable situations.
● While the engine is operating, and just after the engine is stopped, particularly the exhaust pipe,
turbocharger, cylinder heads and parts around them are hot. When servicing them, wear safety
gloves to avoid burns.
D. The engine room floor and the surroundings are slippery as a result of the deposit of oil. Wipe off
oil on the floor and the shoe soles before starting operation or work. When the work is intended at
a high place such as on a step board, particularly be careful of your footing to prevent falling acci-
dents.
E. When disassembling each pipeline, set all the valves in the external connections to the "CLOSE"
position, and gradually loosen the air vent plug to release the remaining pressure in advance, so
that internal liquid does not spout.
If each filter and the joint area of piping system are disassembled immediately after the engine is
stopped, high-temperature oil or water may spout out under residual pressure, and may cause
burn accidents. Contact of the splashing hot oil with any high-temperature part may cause a fire.
Take utmost care not to splash the oil.
F. When the spring-incorporated valves or devices are disassembled, conduct the assembly work
very carefully, since the spring may jump out to cause an injury to the worker.
G. Do not lift heavy parts and equipment forcibly with physical strength. Use wire ropes and chain
blocks to lift them. Also keep away from under lifted things.
Concerning the wire ropes used to lift the parts, select a normal one free from break or twist of the
element wire, and of the specified dimensions conforming to the applicable weight.
H. When inspecting and disassembling an electrical product, be sure to turn OFF the POWER switch,
and put up a sign of "Under Construction".
I. When handling a liquid, strictly observe the following instructions:
● Fuel oil, lubricating oil = Flammable --- Use of fire is strictly prohibited.
● Rust-preventive agent for fresh water, anti-freeze solution for fresh water and mercury (ther-
mometer) = Poisonous --- Drinking is prohibited and cleaning when adhered.
● Battery liquid, organic solvents = Poisonous and flammable gas generation --- Drinking is prohib-
ited, cleaned when adhered and use of fire is strictly prohibited.
◎ To prevent environmental pollution, entrust special waste disposal firms with disposal of used waste oil
and waste liquids.

DE-18 Z 12-01
CHAPTER
0 Introduction
ITEM
Precautions Pertaining to Maintenance: Precautions/Check
2.2,2.3 DE-18 for Disassembly, Maintenance, and Assembly

0-2.2 Precautions for Disassembly, Maintenance, and Assembly

A. Prepare the replacing parts, tools and measuring instruments in advance. As for the tools, be minded to
use those specified, and concerning the replacing parts, use our genuine parts or those specified by us.
B. Gaskets, O-rings, split pins and wire ring wires must be replaced with the new parts after every disas-
sembly. Prepare the new parts according to the extent of disassembly.
C. Cover the openings resulting from disassembly with tape or clean cloth to prevent infiltration of foreign
matters. After restoration, be sure to remove such tape or cloth.
D. Place disassembled parts in neat order for prevention of the damage or loss, and for improvement of the
assembly working efficiency.
E. Be sure to assemble the parts provided with the assembling position marks or matchmarks, such as the
cylinder numbers and the bearing numbers, to their original positions. Further, when these parts are
replaced, be sure to provide the new parts with the same marks as those provided on the old parts.
F. Materials of the bolts and nuts used in high-temperature sections such as the exhaust manifold are heat-
resistant. When reassembling the engine, therefore, be careful not to confuse them with ordinary bolts
and nuts.
G. Tighten the main bolts and nuts uniformly with the specified torque (or specified oil pressure). If it is nec-
essary to apply an agent, such as a lubricant, to the bolts and nuts when tightening them, never use an
agent other than the specified ones.
H. When parts are required to be measured during maintenance, perform the measurement correctly, and
arrange the results of the measurement as the data for the reference on later days.
I. After the completion of the work, restore the lagging of the exhaust pipe and the turbocharger, the
exhaust pipe cover and the parts shielding heated parts, such as the heat box, if they have been
removed for disassembly and servicing. Newly treat the disconnected joints with combustible oil splash
preventive means (splashproof tape) after the completion of the work.
J. Be minded to promptly replenish all the used spare parts.

0-2.3 Check Items after Disassembly, Maintenance, and Assembly

A. Restore the lagging or heat-preventive covers, combustible oil splash preventive means (splashproof
tape) and protective covers, which were removed for inspection and maintenance, to each original posi-
tion.
B. Check that all the bolts and nuts are free from loosening, and that specified lock washers are inserted
securely. Particularly be careful when checking the inside of the engine where visual inspection is
impracticable during operation.
C. Turn the engine and prime each fluid to check that there is no problems such as interference of the
working area, and leakage or clogging of each section.
D. After the completion of reassembly, check that the turning bar is removed from the flywheel.
E. Record the contents of performed operations and the replaced parts in the engine control log.

DE-18 Z 12-01
 CHAPTER
Introduction 0
ITEM
Engine Conforming to NOx Technical Code: Outline/
The Parts to be Specified/Engine Setting Value DE-18 3.1～3.3

0
0-3 Engine Conforming to NOx Technical Code
0-3.1 Outline
A. The marine diesel engines to which the Regulation 13 "Nitrogen Oxides (NOx)", Annex VI "Regulations
for the Prevention of Air Pollution from Ships", MARPOL 73/78 is applied should conform to NOx
Technical Code.
B. The engines conforming to NOx Technical Code are authorized as an engine group or an engine family,
and it is allowed to apply the engine parameter check method to them, when receiving the NOx dis-
charge inspection on board.
The engine parameter check method is a method for verifying that the engine components and the set-
ting values conform to the requirements specified in the technical file, and does not require the measure-
ment of NOx discharge. To the engines that are not conforming to the requirements of the technical file,
the engine parameter check method cannot be applied. For such engines, the measurement of NOx dis-
charge shall be required.

0-3.2 The Parts to be Specified

The technical file states the engine components that can affect the NOx discharge specified in NOx
Technical Code, and shows the identification marks stamped on them, and the user is required to maintain
the technical file for each engine. When replacing any parts shown in the technical file, be sure to use our
genuine parts stamped with the identification marks. In the case that any parts without the identification mark
are used, it shall be regarded as nonconformance to the requirements of the technical file, and in such a
case, inspection by the engine parameter check method cannot be applied.
The followings are the parts that have the identification marks specified in the technical file. When replac-
ing any of these parts, be sure to check the identification marks. ( ："Technical File")

<Parts with identification marks>

1. Cylinder head 2. Piston 3. Turbocharger

4. Air cooler 5. Fuel oil cam 6. Fuel oil injection pump
7. Fuel oil injection pump plunger 8. Fuel oil injection valve 9. Fuel oil injection valve nozzle

0-3.3 Engine Setting Value

The engines conforming to NOx Technical Code are adjusted to conform to the specifications before ship-
ment. After shipment, they should not be adjusted to such a manner that the setting values specified in the
technical file may be deviated. If any change is made in the manner that may deviate from the setting values
specified in the technical file, it shall be considered to be nonconformance to the requirements of the techni-
cal file, and the inspection by the engine parameter check method cannot be applied.

The followings are the items that are set to conform to NOx Technical Code:
<Item set before shipment>
A. Fuel oil injection timing

DE-18 Z 12-01
CHAPTER
1 Equipment Arrangement and Maintenance Schedule
ITEM

1 DE-18 Equipment Arrangement

1.Equipment Arrangement and Maintenance Schedule

1-1 Equipment Arrangement

Fuel Oil High Pressure Block

Turbocharger Starting Valve Fuel Oil Injection Pump

Governor
Air Cooler
Gauge Board

Starting Air
Cam Gear Rotary Valve

Idle Gear
Cranck Shaft
Cranck Gear
Main Bearing

Auxiliary Device Thrust Bearing

Driving Gear

DE-18 Z 12-01
 CHAPTER
Equipment Arrangement and Maintenance Schedule 1
ITEM
Equipment Arrangement DE-18 1

Starting Valve Turbocharger H.T. Cooling Water

Temperature Control Valve 1
Indicator Valve (with cover)
Fuel Oil Control Cylinder

Air Cooler

H.T. Cooling Water Pump

Fuel oil Feed Pump

L.T. Cooling Water Pump Lubricating Oil Pump Fuel Oil Filter Engine Number (Engraving)

Lubricating Oil Auto-Backwash Filter Lubricating Oil Cooler

Lubricating Oil Relief Valve

Lubricating Oil Bypass Valve

Engine Frame Safety Valve

Lubricating Oil Bypass Filter

Lub. Oil Thermostat Valve Lubricating Oil Priming Pump

H.T. : High Temperature

L.T. : Low Temperature

Note: The layout of the devices may vary depending on specifications.

DE-18 Z 16-06
CHAPTER
1 Equipment Arrangement and Maintenance Schedule
ITEM

2 DE-18 Maintenance Schedule Table

1-2 Maintenance Schedule Table

This table covers the periodic disassembly and maintenance items of the engine. For the items related
with daily maintenance and inspection, refer to the separate volume.( ："Operation")
(
：Periodical inspection, 䂥 ：The 1st inspection after the initial operation, and after overhaul and
maintenance,
：Replacement.)

Overhaul / maintenance Period Table

Parts to be Work man-hour
Referance
overhauled and Work contents [No. of workers 1000 - 2000 - 4000 - 8000 - 16000 - Remarks
maintained x Hours] 1500 3000 6000 12000 24000
3 mos. 6 mos. 1yr. 2 to 3 yrs. 4 to 5 yrs.
Cylinder head Checking that the cylinder head 2 X 0.2 3-1
bolts are tightened, and re-
tightening
Overhauling the cylinder head 2 X 1.0 3-1
(top hole)
Cylinder head inspection and 1 X 1.5 3-1
cleaning
Replacement of O-ring 1 X 0.5 3-1
nozzle holder guide
Replacement of exhaust valve 1 X 2.0 3-1
seat and O-ring
Jacket inspection 1 X 0.25 3-1
Disassembly and inspection of 1 X 1.5 3-4
indicator and safety valve
Disassembly, inspection and 1 X 2.0 3-2
running-in of intake and exhaust
valves
Disassembly and inspection of 1 X 0.5 3-2
valve rotator
Inspection of valve spring and 1 X 0.25 3-2
cotter
Disassembly and inspection of 1 X 1.0 3-3
rocker arm
Disassembly and inspection of 1 X 1.0 3-3
starting valve
Piston Piston extraction (including 2 X 1.0 4-3
connecting rod small end part)
Piston inspection, cleaning and 1 X 0.5 4-4
measurement
Piston ring replacement 1 X 0.25 4-4
Piston pin inspection and 1 X 0.25 4-4
measurement
Piston pin bush inspection 1 X 0.25 4-4
Connecting Connecting rod bolt inspection 2 X 1.0 4-5
rod and retightening
Crankpin bearing overhaul 2 X 1.5 4-4
inspection, and metal replacement
Crankpin inspection and 1 X 0.5 4-4 / 7-3
measurement
Connecting rod bolt replacement 2 X 1.0 4-4
Protection Extraction, inspection, cleaning 1 X 0.25 4-3 / 5-3
ring and measurement
Cylinder liner Cylinder liner inner surface 1 X 1.0 5-3
inspection and measurement
Cylinder liner extraction 2 X 2.0 5-4
Inspection on jacket side and 1 X 1.0 5-5
replacement of O-ring
Main bearing Checking that the main bearing 2 X 0.5 6-3
cap bolt is tightened
Checking main bearing 2 X 2.0 6-3
disassembly and inspection,
replacement of metal

DE-18 Z 12-01
 CHAPTER
Equipment Arrangement and Maintenance Schedule 1
ITEM
Maintenance Schedule Table DE-18 2

Parts to be Work man-hour Overhaul / Maintenance Period Table

Reference Remarks
overhauled and Work contents [No. of workers 1000 - 2000 - 4000 - 8000 - 16000 -
maintained 1500 3000 6000 12000 24000
x Hours] 3 mos. 6 mos. 1 yr. 2 to 3 yr 4 to 5 yr

Crankshaft Defection measurement

Balance weight bolt tightening
2 X 1.0 Separate
volume
"Operation"
5-4.5
1
check
o
Wiring inspection 1 X 0.5 7-3
o
Inspection by torque wrench 2 X 2.0 7-3
Timing gear Check and retighten the tightening 1 X 1.5 8-1
bolts
Check engagement between 1 X 0.5 8-1
gears and backlash of gears
Overhaul the idle gear, and check 1 X 1.0 8-1
and measure the bush
Cam gear / cam Disassemble and check the gear 2 X 1.5 8-1
Camshaft Draw out, check and measure the 3 X 2.0 8-2
camshaft
Camshaft Check and measure the cam 2 X 1.0 8-2
bearing bearing
Fuel oil Check 2 X 1.0 8-2
injection timing
Fuel oil Disassemble, and check 1 X 2.0 9-4
injection pump 9-4
Deflector replacement
o

Plunger assembly and delivery

o
Replace 9-4
valve assembly replacement
Spring, spring seat and tappet
o
9-4
replacement
Fuel oil Check and clean and adjust the
injection valve injection pressure 1 X 1.0 "Operation"
5-4
Fuel oil block Replace O-ring
(fuel high pressure block)
Fuel oil o
Replacement of O-rings 2 X 2.0
piping system
Valve Disassemble the swing arm and
operating device check the tappet roller and bush 1 X 1.0 10

Governor Disassemble, and check Separate Instruction

volume manual
Governor Disassemble, check and clean 1 X 2.0 11
driving device o
Replace the bearing and O-ring
Separate Instruction
Turbocharger Disassemble, check and clean volume manual
Air cooler Disassemble, check and clean 2 X 3.0 12-3
Perform hydroulic test
Disassemble, check and
Starting valve replace O-ring 13-2
Starting air
rotary valve Disassemble, and check 13-2
Fuel oil relief Disassemble and check
valve 1 X 0.5 14-2
Fuel oil feed Disassemble, check and 14-3
pump replace the bearing 1 X 2.0 Option

Pulse absorber Replacement 1 X 0.5 14-1

Lubricating oil Disassemble, check and clean
pump o
Check and replace the bearing 2 X 1.5 15-2
and oil seal 15-2

DE-18 Z 12-01
CHAPTER
1 Equipment Arrangement and Maintenance Schedule
ITEM

2 DE-18 Maintenance Schedule Table

Work man-hour Overhaul / Maintenance Period Table

Parts to be Reference
overhauled and Work contents [No. of workers 1000 - 2000 - 4000 - 8000 - 16000 - Remarks
1500 3000 6000 12000 24000
maintained x Hours] 3 mos. 6 mos. 1 yr. 2 to 3 yr 4 to 5 yr
Lubricating oil Instruction
cooler Disassemble and clean 2X 4.0 15-3 manual
Lubricating oil
relief valve Disassemble and check 1 X 0.5 15-4
Lubricating oil Disassemble, check, clean and
thermostat replace the tappet 1 X 1.0 15-5
valve
Lubricating oil Disassemble, check and clean Instruction
filter 15-6 manual
Cooling water Disassemble, check and clean 16-2
pump o Replace the oil seal
2 X 2.0 16-2
and mechanical seal
o Replace the bearing 16-2
Cooling water Disassemble, check and clean 1 X 1.0
and replace the O-ring 16-3
bypass valve
Cooling water Disassemble, check and clean
thermostat valve or replace 1 X 0.25
Fuel oil control
cylinder (fuel Disassemble, check and clean
and replace the O-ring and seal 1 X 1.0 17
oil shutoff/
control device)
Instruments Replace the pressure gauge
hose 1 X 1.0 18

Check the pressure gauge and ( )

(adjustment) 18
tachometer

Seal pot (heavy fuel oil type)

1 X 0.5 18
Change ethylen glycol

Notes:
1. The above table shows the standard values of the man-hour as well as the overhaul and maintenance
period under the conditions of general use of the heavy fuel oil.
In servicing an actual engine, initially set the work man-hour more, and set the overhaul and maintenance
interval shorter than those shown in the table.
Later reset the work man-hour as well as the overhaul and maintenance interval to the most appropriate
values, according to the operating conditions, work environment, and the results of the overhaul.
2. The work man-hour is based on the standard values for the experienced workers who are also skilled in
restoration. Therefore, please plan to have extra times for beginner.
3. The mark "
" given in the work-hour column indicates the man-hour per unit (one cylinder or one bear-
ing). When the number of the objects is "n" pieces, multiply the value by "n".
4. Have the work marked with "
" executed by a professional technician of the manufacturer or mainte-
nance company, of conduct the work under his guidance.

DE-18 Z 12-01
 CHAPTER
Equipment Arrangement and Maintenance Schedule 1
ITEM
MEMO DE-18

1
CHAPTER
2 General Maintenance Items
ITEM

1 DE-18 Preparation before Maintenance Work

2.General Maintenance Items

2-1 Preparation before Maintenance Work

Make the following preparation before starting the engine disassembly and mainte-
nance work

<Preparation before work>

(1) Set the control handle to the "STOP" position.
(2) Close the air tank main valve.
(3) Close the fuel oil outlet and inlet valves.
(4) Close the lubricating oil outlet and inlet valves.
(5) Close the cooling water outlet and inlet valves.
(6) Open the cooling water inlet drain valve of lubricating oil cooler case to discharge cooling
water in the jacket.
(7) Turn OFF the POWER switch of engine control system.
(8) Open the indicator valve of the cylinder head.

DE-18 Z 12-01
 CHAPTER
General Maintenance Items 2
ITEM
General Consumables and Materials/General Tools,
Implements, and Measuring Instruments DE-18 2.1, 2.2

2-2 General Consumables and 2-2.2 General Tools, Implements, and

Materials/General Tools, Implements, Measuring Instruments
and Measuring Instruments
A. General tools and implements
General consumables, materials, tools, and 1. General tools
measuring instruments to be prepared for the
engine maintenance work are shown below. The
(a) Sockets (19×12.7, 24×12.7, 27×19)
(b) Double-ended spanners (8×10, 11×13,
2
consumables, tools, and measuring instruments 17×19, 22×24, 27×30)
required for specific work items are shown in the (c) Offset wrenches (17×19)
sections of the individual work items. (d) Hex. rod spanners (4, 6, 10, 14)
(e) Box spanner (19×300, 24×300)
2-2.1 General Consumables and (f) Monkey wrenches
Materials (g) Pliers
1. Waste cloth (h) Snap ring pliers
2. Washing oil (i) Screwdrivers (plus, minus)
3. Lubricating oil (j) Hammers (iron, plastic)
4. Grease 2. Torque wrenches (1800, 5600)
5. Machine oil VG-10 3. Ratchet handles (12.7)
6. Lubricant (MOLYKOTE 1000 spray and 4. Pipe handle
MOLYKOTE U paste) 5. Eye bolts (M10, M12, M16)
7. High-temperature anti-seizure agent 6. Chain block
(MOLYKOTE G rapid, Sumokon paste) 7. Wire rope for suspension
8. Liquid sealant (THREE BOND 1215) 8. Tap M10×1.5, and tap handle
9. Silicon gum 9. Lubricator
10. Silicon rubber compound medium size, fine
size (for facing-up) B. Measuring instruments
11. Lubricating penetrant (KURE 5-56) 1. Calipers
12. Dye testing penetrant (for color check) 2. Thickness gauge
13. Blue paint lead (for confirmation of fitting) 3. Outside micrometer (mm) (0~25, 50~75,
14. Liquid nitrogen, dry ice, or alcohol (for cold-fit- 75~100, 125~150, 150~175)
ting) 4. Spherical micrometer (0~25 mm)
15. Wire (for wire ring) 5. Cylinder gauge (mm) (10~18, 50~150,
16. Wire brush 150~175)
17. Sandpaper #80 and other 6. Dial caliper gauge (3~9 mm)
18. Oil whetstone 7. Dial gauge
19. Anti-corrosive paint (for liner repair) 8. Magnet stand
20. Repair agent (for liner repair)
21. Lead wire (measuring instruments for gear
backlash, etc.)
22. Adhesive (LOCTITE271, 962T and 243)

DE-18 Z 12-01
CHAPTER
2 General Maintenance Items
ITEM

3 DE-18 Bolt and Nut Tightening Torque, Tightening Oil Pressure

2-3 Bolts and Nut Tightening Torque, Tightening Oil Pressure

Bolt or nut width Tightening torque

Name of bolt and nut Size across flats or oil pressure
(mm) (N.m)

Cylinder head tightning nut Hydraulic tightening Oil pressure 53 MPa

Cylinder head bolt (stud bolt) 300

Crankpin bolt tightening nut Hydraulic tightening Oil pressure 80 MPa

Crankpin bolt (stud bolt) Hole 12 300

Torque A 50
Rod connecting bolt 24 o
+ turning angle 25
After completely screwing in
Side bolt Hydraulic tightening Oil pressure 70 MPa the stud bolt, return it 1/4 to
1/2 of a turn.

Hydraulic tightening Oil pressure 56 MPa

Main bearing bolt (stud bolt)

Balance weight bolt 41

Flywheel tightening nut 41

Idle gear shaft bolt 24

Cam gear tightening bolt 19

Cam shaft connecting nut 17

LOCTITE 271
Cam shaft connecting bolt (stud bolt) 8 (Threaded oprtion)

Swing arm shaft bolt 24

Auxiliary machine driving gear tightening bolt 30

Fuel high-pressure block mounting bolt 19

F.O. nozzle retaining nut 27

Nut for fuel oil injection pump mounting 24

Injection pump derivery valve tightening bolt Hole 14

DE-18 C 15-04
 CHAPTER
General Maintenance Items 2
ITEM
Bolt and Nut Tightening Torque, Tightening Oil Pressure DE-18 3

Bolt or nut width Tightening torque

Name of bolt and nut Size across flats or oil pressure
(mm) (N.m)

F.O. injection nozzle holder fiting nut

Rocker arm shaft holder tightening nut

Starter valve lid mounting bolt

2
Starter valve tightening nut M10 17 30

Engine frame installatio bolt

L.O. plate cooler tightening nut

Cooling water pump impeller nut 150

Cooling water pump gear nut

L.O. pump gear nut M22

Fuel oil transfer pump gear nut

General bolts and nuts M10 17 15 ~ 20

M12 19 30 ~ 40
M14 22 35 ~ 50
M16 24 50 ~ 70
M18 27 80 ~ 100
Notes:
1. Tighten the major bolts and nuts in accordance with the above table.
2. Tighten bolts and nuts on each diagonal line alternately. Tighten them uniformly.
3. Check the tightening force of the cylinder head tightening nuts (No.1 in the above table) and the connect-
ing rod bolts (Nos. 2 and 3 in the above table) after operating the engine for a certain period. ( : 1-2
"Maintenance Period Table")
4. Retighten the bolts used for installation while the engine is in the stopped state. After retightening, be
sure to check the deflection of the crankshaft.
5. Periodically inspect the torque wrenches.
6. The symbols in the table indicate the followings.
: Priority shall be given to the tightening oil pressure and torque shown on the nameplate attached to
the engine.
: Apply lubricant (MOLYKOTE 1000 SPRAY).
: Apply lubricant (MOLYKOTE U PASTE).

If any agent other than the specified products is applied, the friction force of the threaded portions
changes, and the bolts are tightened excessively or insufficiently. As the result of this, the bolts may
be broken or loosened, thereby causing serious damage to the engine.

7. Bolts coated with adhesive (LOCTITE 243) cannot be reused after disassembly. Replace them with new
ones. When reassembling, carefully clean the internal threads using a tap.

DE-18 F 16-05
CHAPTER
2 General Maintenance Items
ITEM
4.1, 4.2 DE-18 Hydraulic Jack: Overview / Setting of High-pressure Hoses

2-4 Hydraulic Jack

2-4.1 Overview of Hydraulic Jack
The hydraulic jack assembly (hereinafter
referred to as the hydraulic jack) (a) consists of a
pair of a hydraulic cylinder and a hydraulic piston.
Give a certain hydraulic tensile force to a bolt
operating the hydraulic pump (b) connected with
the high-pressure hose (c), and turn the nut to
tighten or loosen it. The nuts of the following bolts
should be tightened and removed by using the
hydraulic jack.
● Cylinder head bolt
● Main bearing bolt
● Crankpin bolt

● Side bolt

2-4.2 Setting of High-pressure Hoses

The parts of the high-pressure hoses are
packed separately when they are delivered.
Before you use these parts, set up them as
described below:
(1) Screw the male couplers into both ends of
each of the two high-pressure hoses.
(2) Screw the male couplers into one end of Hydraulic jack
each of the three high-pressure hoses.
(3) Screw the two female couplers into the termi-
nal 4T at the position shown below.
(4) Screw the high-pressure hoses you have set
up in step (2) into the position shown below.

High-
High- pressure
pressure hose A
hose B

Connecting with the Hydraulic Pump

DE-18 A 14-07
 CHAPTER
General Maintenance Items 2
ITEM
Hydraulic Jack:Removal of Nuts DE-18 4.3

2-4.3 Removal of Nuts H. Increase the oil pressure to the specified value
by operating the hydraulic pump lever. Increase
Remove nuts in accordance with the following
the oil pressure gradually. Confirm that the
procedure.
pressure is not released while it is lower than
A. Carefully clean the area around each circular
the specified oil pressure.
nut, and check that no dust or foreign matter is
on the bearing surface of the jack stand (e). Specified value: Indicated in each operation 2
Then, put the jack stand. step.
B. Screw the hydraulic jack (a) onto the bolt. ( ：2-3 "Bolt and Nut Tightening Torque,
(Screw the hydraulic piston (i) onto the bolt until Tightening Oil Pressure")
the hydraulic cylinder (ii) gets into close contact
with the jack stand.) I. Insert the jack handle (f) into a tightening nut hole
C. After checking that the hydraulic piston, through the slotted hole in the jack stand, and
hydraulic cylinder and jack stand are in close loosen the tightening nut turning 5 or 6 holes.
contact, return the hydraulic jack about 1/2 J. Slowly open the release valve of the hydraulic
turn. pump to gradually decrease the oil pressure to "0".
D. Check that the valve of the coupler (iii) for con- K. Release the hydraulic jack by hand, and
necting the high-pressure hose does not stick, remove it.
and connect between the hydraulic jack and L. Detach the jack stand.
the terminal (d) and between the terminal and M. Remove the tightening nut.
the hydraulic pump (b) with the high-pressure
hoses (c). Loosen the air vent plug (iv) of the
hydraulic pump to release the oil tank to the The crankpin bolts and the tightening nuts are
atmosphere. stamped a number that indicates the position.
E. Check the oil level in the hydraulic pump. If the Mount those nuts and bolts in the same
level is low, replenish the pump with hydraulic oil. position as before dismantling.

Hydraulic oil: Machine oil

ISO viscosity grade VG10 1. The pressure resistance of the hydraulic
pump and high-pressure hose is 98 MPa.
F. Loosen the release valve (v) and the air vent Do not increase the oil pressure higher than
98 MPa. Doing so can cause an accident.
plug (iv) of the hydraulic pump. 2. While the hydraulic jack is being operated,
G. Loosen the air vent plug (vi) of the hydraulic oil is under high pressure. If oil leaks and
jack, and discharge air in the hydraulic cylinder spouts, it can cause an accident. Wear pro-
by operating the hydraulic pump lever. After tective goggles when operating the
hydraulic jack.
making sure that air has been completely dis- 3. If you see the slit on the hydraulic piston (i)
charged from the cylinder, tighten the air vent from the space between the hydraulic pis-
plug. tons (i) and (ii), push the hydraulic piston
again before you continue using the
hydraulic jack. Otherwise, the high-pressure
oil may leak while you keep using it.

DE-18 B 14-07
CHAPTER
2 General Maintenance Items
ITEM

4.4 DE-18 Hydraulic Jack:Tightening of Nuts

2-4.4 Tightening of Nut J. Loosen the hydraulic jack by hand and remove it.
K.Remove the jack stand.
A.Clean the part of fastened parts under the tight- L. After removing the jack stand, check that the
ening nut as well as the seating surface of the match mark on the nut has turned. If the match
tightening nut and the bottom surface of the mark has not turned, or if a match mark has
jack stand with care and screw the tightening turned extremely differently from other marks on
nut on the bolt until the seating surface of the the other nuts that have been screwed at the
tightening nut lightly contacts the seating sur- same time, then replace the hydraulic jack, and
face of the fastened part. retry screwing the nut.

The rod connecting bolts and the tightening nuts Be carried out according to the procedure of
are stamped a number that indicates the position. 4-5.1"Assembling of the Connecting Rod Large
Mount those nuts and bolts in the same End Part" confirmation tightening of the
position as before dismantling. crankpin bolt and the tightening nut.

B.Screw the round nut until it reaches the end.

M.Do not forget to attach the protecting cap on the
Insert the jack handle into the hole on the tight-
bolt on which the thread protecting cap has to
ening nut. Hammer the jack handle to make
be attached.
sure that the tightening nut is screwed com-
pletely to reach the end. Write a match mark on
the nut and the hydraulic jack.
Make sure to use the high-pressure hose and
C.Put the jack stand on the part to be fastened.
D.Install the hydraulic jack ASSY. and connect it the coupler that belong to the engine.
to the hydraulic pump in the same manner as If you use a high-pressure hose or a connect-
you have removed it. ing coupler different from the proper acces-
Operate the lever of the hydraulic pump to sories, hydraulic pressure may not be applied
slightly apply hydraulic pressure, and make and proper tightening is not performed, or any
sure that the nut turns as much as an even other serious failure may occur.
angle. Then, increase the hydraulic pressure to
the prescribed level.
E. Insert the jack handle in a hole of the tightening
nut through the oblong hole in the hydraulic
cylinder and tighten it by hand until the tighten-
ing nut lightly contacts the part to be fastened.
F. Knock the jack handle with a hammer to check
the tightening condition.
G.Gradually open the release valve of the
hydraulic pump to gradually lower the oil pres-
sure to zero "0".
H.Again raise the oil pressure to the specified one,
and then knock the jack handle with the same
force as described in the item D above with a
hammer to retighten the tightening nut and
make certain that the tightening nut does not
turn (be tightened) more.
I. If the tightening nut should turn in the tightening
direction, repeat the same operation described
above (retighten the tightening nut with the
specified oil pressure, lower the oil pressure to
zero and then retighten the tightening nut with
the specified oil pressure) a few times and make
certain that the tightening nut does not turn in
the tightening direction any more.

DE-18 B 14-07
 CHAPTER
General Maintenance Items 2
ITEM
Hydraulic Jack:Maintenance of Hydraulic Jack DE-18 4.5

2-4.5 Maintenance of Hydraulic Jack

A. Tap the lower part of the hydraulic piston with a
plastic hammer, and remove the piston from
the hydraulic cylinder.
B. Remove the air vent plug (vi).
C. Clean the parts with wash oil, and check that
they are free from defects.
2
D. Apply hydraulic oil to the parts, and fit the
hydraulic piston to the hydraulic cylinder.
E. Replace the O-rings and backup rings with new
ones.

When assembling the jack, take care not to fit

the O-rings and backup rings in wrong posi-
tions.
If they are fitted in wrong positions, the O-
rings will be damaged.

<Consumable parts for hydraulic jack>

( : "Parts List")

A. For crankpin bolt and side bolt

① Backup ring 3-8.1.1 No.14
② Backup ring 3-8.1.1 No.15
③ O-ring 3-8.1.1 No.503
④ O-ring 3-8.1.1 No.505
B. For cylinder head bolt
① Backup ring 3-8.1.2 No.6
② Ring 3-8.1.2 No.17
③ O-ring 3-8.1.2 No.504
④ O-ring 3-8.1.2 No.506

C. For main bearing bolt

① Backup ring 3-8.1.3 No.6
② Ring 3-8.1.3 No.17
③ O-ring 3-8.1.3 No.504
④ O-ring 3-8.1.3 No.506

DE-18 A 14-07
CHAPTER
3 Cylinder Head and Valves
ITEM
Cylinder Head:General of Structure/Replacement Consumable
1.1, 1.2 DE-18 Parts, Tools and Measuring Instruments

3 Cylinder Head and Valves 3-1.2 Replacement Consumable Parts,

3-1 Cylinder Head Tools and Measuring Instruments
3-1.1 General of Structure A. Replacement consumable parts
The cylinder head is hydraulically fastened on Replace the following parts with new ones.
the engine frame with four bolts through gaskets. ( ："Parts List")
Each gasket consists of two layers, i.e. a metal-
① Gasket 2-14 No.14
lic gas sealing layer and an integral sealing rubber
layer with core metal for other fluids (intake air, ② Gasket (air intake) 2-14 No.15
cooling water, lubricating oil and mist). These lay- ③ O-rings (fuel oil injection valve) 2-24 No.503
ers are tightened simultaneously. ④ O-ring (injection valve guide) 2-14 No.502
The combustion surface is thick and has a ⑤ O-rings (exhaust valve seat) 2-14 No.10, 11
drilled hole in the center for forced centralized ⑥ O-rings (high-pressure block) 2-24 No.11, 14,
cooling, so that it is unnecessary to cool the fuel
502, 505
injection valve nozzle when heavy fuel oil is used.
⑦ Stem seal (valve guide)
The cylinder head is of a four-valve type. It has
two intake valves and two exhaust valves. The Intake valve 2-14 No.7
valve seats are cold-fitted to the cylinder head, and Exhaust valve 2-14 No.8
the exhaust valve seats are cooled with cooling ⑧ Gasket (exhaust pipe) 2-28 No.14
water. ⑨ Seal (head cover) 2-15 No.2
High-pressure fuel oil is fed to the fuel injection ⑩ Circular packing (sleeve nut for fuel oil nozzle
valve by a cross-feeding system. The fuel high-
mounting) 2-24 No.506
pressure block at the fuel injection pump outlet and
the fuel injection valve are connected through an ⑪ Circular packing (indicator valve) 2-37 No.503
inlet connector. ⑫ O-ring (starting air connecting pipe)
2-1 No.508
Cylinder head (single unit): 95 kg ⑬ O-ring (starting valve sleeve) 2-14 No.13
Cylinder head assembly (with valves): 107 kg ⑭ Gasket (starting valve pilot) 3-1.1 No.506

Cap

Cylinder head bolt Starting valve

Exhaust valve Fuel oil injection valve Nut

Intake air vent

Cylinder head
gasket

Cylinder head
gasket-2 Intake valve
Intake valve Indicator valve Exhaust valve Exhaust valve seat Intake valve seat

DE-18 A 12-11
 CHAPTER
Cylinder Head and Valves 3
ITEM
Cylinder Head: Replacement Consumable Parts, Tools and
Measuring Instruments DE-18 1.2

B. Tools and measuring instruments

(3) (1)
(a)General tools and measuring instruments
( :2-2) (1)
(b)Nozzle holder extracting tool ( :3-2.2)
(2)
(1) Nozzle holder extracting tool 1
(2) 3-2.2 B (b)-(2) Valve spring tool: base (4)
(3) Bolt M16×135 (1 pc.)
(4) Bolt M10×100 (2 pcs.)
(c) Hydraulic jack (common to main bearing)
(1) Hydraulic jack assembly (with female coupler)
(2) (e) Cylinder Head
Lifting Tool 3
(2) Jack stand
(3) Jack handle (b) Nozzle Hplder Extracting
(4) Joint bolt
(1)
(d) Hydraulic pump
(1) Hydraulic pump (2)
(2) High-pressure hose 2 m long (2 pcs., with (f) Valve Guide
male coupler) (4) Extracting Tool
(3) High-pressure hose set (terminal, high-pres- (option)
sure hose, female coupler) (3)

(e) Cylinder head lifting tool ( :3-2.2)

(1) Eye bolt M16
(2) 3-2.2 B (b)-(2) Valve spring tool: base (c) Hydraurlic Jack
(f) Valve guide extracting tool (optional)
(g) Stem seal tools (each one for intake and
exhaust)
(h) Exhaust valve seat extracting tools (optional)
(1) Exhaust valve seat extracting tool 1
(2) Exhaust valve seat extracting tool 2
(3) Exhaust valve seat extracting tool 3 (g) Stem Seal Tool
(4) Exhaust valve seat extracting tool 4
(5) Nut M24
(i) Valve arm shaft holder tools
(1) Socket 24
(2) Extension bar 150×12.7
(3) Ratchet head (d) Hydraulic Pump
(4) Torque wrench
(j) Exhaust valve seat cooling tools
(1) Exhaust valve seat
(1)
cooling tool 1
(2) Exhaust valve seat
cooling tool 2 (2)

( j ) Exhaust Valve Seat (i) Rocker Arm Shaft (h) Exhaust Valve Seat
Cooling Tool Holder Tool Extracting Tool

DE-18 A 12-11
CHAPTER
3 Cylinder Head and Valves
ITEM

1.3 DE-18 Cylinder Head: Disassembly

3-1.3 Disassembly of Cylinder Head

Disassemble the cylinder head (top hole) as
stated below.

A. Remove the covers.

● Exhaust pipe cover (A)
● Heat box cover (B)
● Cylinder head cover (C)

Just after the engine stops, parts (particularly

the exhaust pipe, cylinder head and parts
around them) are hot. Do not touch them with
bare hands. Doing so can burn your hands.
When handling the cylinder head, wear pro-
tective gloves, and take care not to burn your
hands.

B. Remove the fuel high-pressure block and the

inlet connector, and pull out the fuel oil injection
valve using the nozzle holder extracting tool
(b).
( ：5-4.2 "Inspection and Maintenance of Fuel
Oil Injection Valve" in Operation Manual)
C. Remove the exhaust pipe mounting bolt.

The exhaust pipe mounting bolt is made of

alloyed steel.
Take care not to mix it up with other general
bolts.

D. Loosen the rocker arm shaft holder tightening Cover:Starting valve Fuel injection pump
nut (E), and remove the rocker arm shaft
Banjo plug
assembly.
( ：3-3.3 "Disassembly of Rocker Arm Device")

E. Draw out the intake and exhaust valve T-yokes

(F) and the push rods (G).
F. Remove the banjo plug of the pilot air valve inlet
pipe .
.

Pilot air pipe

Removing the Pilot Air Pipe Banjo Plug

DE-18 A 12-11
 CHAPTER
Cylinder Head and Valves 3
ITEM
Cylinder Head: Disassembly DE-18 1.3

G. Simultaneously remove the four cylinder head

tightening nuts (H) using the hydraulic jack (c).
( ：2-4 "Hydraulic Jack")
(c)-(1)
(1) Place the jack stand (c)-(2) aligning the notch-
es so that the jack stand does not interfere (c)-(2)
with the adjacent cylinder head.
(c)-(4)
(2) Attach the hydraulic jack assembly (c)-(1) to
the head bolt.
(3) Connect the hydraulic pump (d)-(1), terminal
(c)-(3)
3
4T (d)-(3) and hydraulic jack assembly with the
high-pressure hose (d)-(2).
(H)
(4) Operate the hydraulic pump to increase the
pressure to the specified value, loosen the
nuts (H) with the jack handle (c)-(3), and
remove the nuts.

Specified oil pressure: 53 MPa

Mounting the Hydraulic Jack

(5) Confirm the oil pressure at which the nuts
start turning, and check that the cylinder head
bolts have been tightened securely.
.

(d)-(3) (d)-(3) (d)-(2)

(d)-(1)

Connecting the High-Pressure Hoses

DE-18 B 14-01
CHAPTER
3 Cylinder Head and Valves
ITEM

1.3 DE-18 Cylinder Head: Disassembly

H. Secure the cylinder head lifting tool (e) to the

stud bolt for retaining the nozzle holder on the
top of the head, and lift the cylinder head using
a chain block and a lifting wire rope.
㩿㪼㪀

Cylinder head bolt Stud bolt for

F.O. injection
If the cylinder head is dropped while it is being nozzle holder
lifted, serious accidents can occur. To lift it,
use the specified lifting tool, and strictly follow
the standards on use of wire rope.

1. Slowly lift the cylinder head, taking care not

to damage the threads of the cylinder head Lifting the Cylinder Head
bolt. Take care that cooling water in the
head does not enter the cylinder.
2. When placing the removed cylinder head in
position, take care not to damage the cylin-
der head bottom.

I. Remove the cylinder head gaskets 1(J) and

2(K), and cover the cylinder head with clean
cloth or tape to prevent entry of foreign matter
into the cylinder liner, intake duct and other
fluid passages.

DE-18 A 12-11
 CHAPTER
Cylinder Head and Valves 3
ITEM
Cylinder Head (Body): Inspection and Maintenance DE-18 1.4

3-1.4 Inspection and Maintenance of G.Clean the sealing surfaces to be in contact with
Cylinder Head (body) the cylinder head gaskets 1 and 2. If neces-
sary, grind the surface to be in contact with the
The parts handled in this section must con- gasket 1.
form to NOx Technical Code. When replacing H. Check for adhesion of scale in the jacket
any of these parts, use the part with the through the cooling water outlet hole on the
identification mark. combustion side.
( ： 0-3 "Engine Conforming to NOx
Technical Code") 3
A. Before maintaining the cylinder head (body),
remove the following parts. (As for the remov-
ing procedure, refer to the separate items.)

1.Intake and exhaust valves ( ：3-2.3)

2.Indicator valve ( ：3-4)

B.After removing the above valves, check for Intake
ports
adhesion of carbon to the combustion surface
and the intake and exhaust ports.
C. After removing carbon from the combustion sur-
face and the intake and exhaust ports and care-
fully cleaning them, perform color check to
check for cracks.
The combustion surface and the ports near the
combustion surface are exposed to high tem-
perature and high pressure. Particularly care-
fully check them.

When removing carbon, do not use a gas

burner. The use of a gas burner may harden
the O-rings due to high temperature and dete-
riorate the materials due to local heating.

D. Check for corrosion on the intake and exhaust

ports.
E. Check for corrosion on the sealing surfaces
(surfaces in contact with the cylinder head gas-
ket 2) and inner surfaces of fluid passage
holes.
F. Check for signs of gas leakage from the gas
sealing surface to be in contact with the cylin-
der head gasket 1.

DE-18 Z 12-01
CHAPTER
3 Cylinder Head and Valves
ITEM
Cylinder Head: Intake and Exhaust Valve Guides
1.5 DE-18

3-1.5 Intake and Exhaust Valve Guides

The valve guides and the stem tools are exclu-
sively for the intake side or for the exhaust side.
Use caution not to use incorrect one for the
assembly.
A. Measurement of inner diameter
After removing the stem seals fitted at the tops
of the intake and exhaust valve guides, check for
corrosion in the valve guides, measure the inner
diameters with a cylinder gauge, and record them. Each of the stem tools is exclusively for the
Calculate the clearances based on the above intake or exhaust side. The colored rubber
measurements and the measurements of the outer seals are used to indicate the difference
diameters of the intake and exhaust valve stems. (intake side: gray; exhaust side: green).
( ： 3-2.4 "Inspection and Maintenance of When reassembling them, take care not to
Intake and Exhaust Valves") confuse them.
<Cold-fitting procedure>
Nominal size Standard clearance Limit for replacement
(mm) (mm) (mm) • When liquid nitrogen is used: Soak the part
A = φ14 a = 0.08~0.15 0.32 in liquid nitrogen, and pick it up when bubbles
B = φ14.5 b = 0.08~0.15 0.32 disappear. Fit it immediately.
• When dry ice is used: Soak dry ice and the
B. Replacement of valve guide and stem seal part in alcohol, and cool the part for 20 to 30
When the clearance between the intake or min. Then, pick it up, and immediately fit it.
exhaust valve stem and the valve guide exceeds
the limit for replacement and the valve guide has
worn excessively, remove the valve guide in accor- a, b
dance with the following procedure, and replace it Intake / exhaust
valve guide
with a new one.
A, B
When removing the stem seal from the valve
guide, replace it with a new one.
(1) Remove the stem seal.
Valve stem
(2) Draw out the valve guide. A,a: Intake valve
B,b: Exhaust valve
To draw it out, use the valve guide extracting
tool (f) (optional), or make an extracting tool as
shown in the figure out of a round bar. Insert Valve Guide Clearance
the tool into the valve guide, and tap the tool
with a hammer to remove the valve guide. (f)
Hammer
(3) Fit a new valve guide.
Fit the valve guide in a cold state using liquid
nitrogen or dry ice.

Valve guide

Extracting the Valve Guide

DE-18 A 12-03
 CHAPTER
Cylinder Head and Valves 3
ITEM
Intake and Exhaust Valve Guides /
Cylinder Head:
Intake and Exhaust Valve Seats DE-18 1.5,1.6

Touching the cooling liquid or the cooled part

with bare hands can cause frostbite.
To prevent frostbite, wear cotton gloves
against the cold when handling them.

(4) Fit the stem seal.

Fit the stem seal using the stem seal tool (g).
Tap the tool with a hammer, taking care not to
damage the stem seal.
3
Each of the stem seal tools (g) is solely for the
intake or exhaust side. See the letters marked
on the tools to know which is for which side.

3-1.6 Intake and Exhaust Valve Seats

A. Measurement of dimensions of valve seats
Measure the dimensions D and F of the valve
seats. If the seats have considerably worn over
the limit for replacement, replace the seats with
new ones. D F
Intake valve seat Exhaust valve seat

Nominal size Limit for replacement Measuring the Dimensions of the Valve
Seats
(mm) (mm)
Welding rod
Intake valve seat D＝3.0 1.5
Exhaust valve seat F＝2.0 0.5

B. Replacement of intake valve seat

1.Removing the valve seat
Build up weld metal on the whole inner periph-
Build-up welding
ery of the valve seat, and quickly cool the
Removing the Intake Valve Seat
valve seat with water. Then, the valve seat
shrinks and it can be removed easily.

When building up weld metal, take care that

the combustion surface and the valve guide
hole are not damaged by spatter. When
removing the valve seat, take care not to dam- (i)-(1)
age the fitting hole in the cylinder head.
Used valve
2.Fitting the valve seat
(1) Fit it in a cold state using liquid nitrogen or dry
ice. The cold-fitting procedure is the same as

that for the valve guide.( ：3-1.5) Fitting the Intake Valve Seat
(2) Drive the valve seat surely using the used valve
or the exhaust valve seat cooling tool 1 (j)-(1).

DE-18 A 12-03
CHAPTER
3 Cylinder Head and Valves
ITEM

1.6 DE-18 Cylinder Head: Intake and Exhaust Valve Seats

C. Replacing the exhaust valve seat Face the beveled Fix with
Replace the exhaust valve seat if the size F is side of nut a spanner
downwards, and
less than the limit or every 16,000~24,000 hours fasten the nut.

(4~5 years).
Replace the O-ring at the same time.

1.Removing the valve seat

Remove the valve seat by build-up welding in
the same manner as when removing the intake
valve seat or using the exhaust valve seat
extracting tool (h) (optional). Remove the valve
seat slowly, taking care not to damage the fitting
hole in the cylinder head. ( i )-(2) Exhaust valve seat O-ring
2.Fitting the valve seat
Since an O-ring is fitted to the exhaust valve
seat, harden the valve seat with the O-ring in a
cold state with liquid nitrogen or dry ice using the
exhaust valve seat cooling tool 2( j )-(2), and fit
the valve seat to the cylinder head. The cold-fit-
ting procedure is the same as that for the valve Cooling the Exhaust Valve Seat
guide. ( ：3-1.5)

<Fitting procedure> Fitting Removing

(1) Apply grease to the O-ring at a normal tem-

perature, and fit it to the exhaust valve seat. ( j )-(1)
(2) Heat the exhaust valve seat cooling tool 2( j )-
(2) in hot water at 70 to 80℃.
(3) Fit the exhaust valve seat in the tool 2( j )-(2) ( j )-(2)
by using the used valve or the exhaust valve Exhaust valve seat
Fitting and Removing the Exhaust
seat cooling tool 1 ( j )-(1). Valve Seat in and from the Tool 2
(4) Cool the exhaust valve seat fitted in the tool 2
( j )-(2). Used valve

(5) After cooling, remove the exhaust valve seat ( j )-(1)

from the tool 2( j )-(2) using the tool 1 ( j )-(1),
and immediately insert the valve seat into the
cylinder head.
(6) Drive the valve seat surely into the cylinder
head by using the used valve or the tool 1 ( j )-
(1).

Fitting the Exhaust Valve Seat

DE-18 A 12-03
 CHAPTER
Cylinder Head and Valves 3
ITEM
Cylinder Head : Nozzle Holder Guide DE-18 1.7

3-1.7 Nozzle Holder Guide (5) Install the nozzle holder guide on which the fit-
ting tools #1 and #2 is installed as shown in the
The O-ring of the nozzle holder guide should be
Fig. 3.and remove the fitting tool #1 by tapping
replaced for every 16,000~24,000 hours ( 4~5
with a wooded hammer.
years).
At this time do not remove the fitting tool #2.
The tools can be supplied as optional parts.
Place a wood, cloth, or the like beneath the fit-
A. Drawing out the nozzle holder guide ting tool #1.
Snap ring
<Drawing out procedure>
(1) Remove the nozzle holder, and turn the cylin-
O-ring 3
Hammering
der head sideways. (Turn it to the state that the
combustion surface can be seen.)
(2) Remove the snap ring. Extracting tool

(3) Insert the holder guide remover into the noz- Noozle holder guide Hammer

zle holder guide from the combustion chamber

Nozzle holder guide drawing out procedure
side and hit the shaft of the remover with a
hammer to push out the nozzle holder guide

B. Cooling the nozzle holder guide

<Drawing down procedure>
(1) Fit the O-ring on the nozzle holder guide.
Make sure that there are neither scratches nor
separation on the O-ring before installing it.
Adjust toupper end face of
Install the O-ring on the nozzle holder guide nozzle holder guide
carefully so that the O-ring may not be dam- Hammering
aged nor be twisted. Fitting tool #1
(2) Apply grease onto the entire periphery of the
Grease
O-ring that is fitted as described in (1) above. applied
O-ring part
(3) Heat the fitting tool #1 in water heated to
70~80 ℃ and install it on the nozzle holder
guide . O-ring
Grease
Be careful not to damage the O-ring when applied Fitting tool #2
part
installing the tool on the nozzle holder guide. Push in the tool
until it completely
Apply grease onto the entire it periphery of the Fitting tool #2 fits in the fiting part.
fitting tool #2 on which the O-ring is fitted and
then install it on the nozzle holder guide. For Fig. 1 Fig. 2 Fig. 3
the installation, see the Fig. 2.
Nozzle holder guide drawing down procedure
(4) Cool enough the nozzle holder guide on which
the fitting tool #2 is installed as shown in the
Fig. 2 in liquid nitrogen or with dry ice.
( :3-1.5 <Cold -fitting procedure>)

DE-18 Z 12-01
CHAPTER
3 Cylinder Head and Valves
ITEM

1.7 DE-18 Cylinder Head : Nozzle Holder Guide

C. Mounting the nozzle holder guide

<Mounting procedure>
(1) Wipe off dust, etc. on the seating face and fit-
ting part of the cylinder head with a waste cloth
or the like.
(2) Apply silicone paste to the specified places in
circumferential manner. (It can be applied easi-
ly if a brush or the like is used.)
At this time, do not block the cooling water
hole inside the cylinder head with silicone
paste.
(3) Apply LOCK-TIGHT 648 to the fitting part of
the cylinder head.
※ Be minded to perform the work of the
above Item (1)~(3) before cooling down the
nozzle holder guide.
(4) Fit the O-ring on the fitting tool #3 and apply
grease onto the entire periphery of the area of
the tool to be fitted into the nozzle holder guide.
(5) Since the nozzle holder guide shall be fitted in
the cylinder head at the unique circumferential
direction, assemble the nozzle holder guide
and the fitting tool #3 so that the dowel pin of
the fitting tool #3 may be fitted in the locating
groove in the nozzle holder guide.
(6) Choose the position of a bolt hole in the flange
in relation to the mating nozzle holder mounting
bolt so that the dowel pin of the fitting tool #3
may face the side where the fuel injection
pump is installed.
(7) Fit the fitting tool #3 into the cylinder head by
hammering the tool.
Be careful enough so the nozzle holder guide
may not be obliquely fitted in the cylinder head.
And hammer the tool into the cylinder head
until the nozzle holder guide touches the seat
and stops going forward.
Since the slow work makes it difficult to fit the
nozzle holder guide into the cylinder head, try
to effect the work as quickly as possible.
(8) Remove the fitting tools #2 and #3.
(9) Fit the snap ring to the specified position.

DE-18 Z 12-01
 CHAPTER
Cylinder Head and Valves 3
ITEM
Cylinder Head :Reassembly DE-18 1.8

3-1.8 Cylinder Head Reassembly G. Apply anti-seizure agent (Molykote 1000 Spray)
to the threaded portion and the bearing surface
Reassemble the cylinder head in accordance of the exhaust pipe tightening bolt, and tenta-
with reverse procedure to disassembling as shown tively tighten the bolt.
below.
H. Carefully clean the threaded portions of the
A. Fit the intake and exhaust valves and reducing cylinder head bolts, the threaded portions and
valve in the cylinder head. the bearing surfaces of the cylinder head bolt
tightening nuts, and the contact surfaces of the
( ：3-2.6 "Assembly of intake and exhaust valves") cylinder head with the tightening nuts. After
B. Clean the cylinder head and cylinder liner sur-
faces to be in contact with the head gasket 1,
checking for dirt and foreign matter on them,
screw in each tightening nut by hand until it
3
and the cylinder head and engine frame sur- gets into contact with the surface.
faces to be in contact with the head gasket 2.

Take care not to fit the cylinder head tighten-

ing nuts upside down.
Oil that has lubricated the rocker arm device
returns through the cylinder head top surface.
Clean the surface carefully so that dust and I. Attach the hydraulic jack in the same manner as
lint does not enter the lubricating oil. when disassembling, and tighten simultaneous-
ly the four bolts to the specified hydraulic pres-
C. Fit a new cylinder head gasket 1 on the cylinder
sure.
liner top surface, and fit a new gasket 2 on the
engine frame top surface.
Specified oil pressure: 53 MPa

1.Do not apply anti-seizure agent or lubricat-

J. After removing the hydraulic jack, fit the rubber
ing oil to the cylinder head gaskets.
cap to each bolt threaded portion.
2. Fit the gasket 2 into the starting air connect-
ing pipe (one location) coming from the K. Mount the fuel oil injection valve.
engine frame. Fit it so that the gap with the
( ：5-4.2 "Inspection and Maintenance of Fuel
cylinder head bolt is kept even.
Oil Injection Valve" in Operation Manual)
L. Connect the starting valve air pilot inlet pipe.
D. Attach the cylinder head lifting tool (e) to the
M. Insert the push rods.
cylinder head, and lift the cylinder head.
( ：3-3.5 "Assembly of Rocker Arm Device")
N. Mount the rocker arm device.
Lift the cylinder head horizontally. Take care
that cooling water in the jacket does not enter O. Mount the indicator valve.
the cylinder. P. Hold the inlet connector with the slit mark facing
you, and insert it from the side.

E. Check that there is no foreign matter in the Q. Fit the O-ring coated with grease onto the fuel
cylinder. oil high-pressure block.

F. After lifting up the cylinder head, pay attention to

the threads on the cylinder head bolts to pre-
vent them from being damaged. Lower the
cylinder head slowly. Make sure that the SA
connecting pipe on the engine frame and the
cylinder liner brim are fitting with the cylinder
head before fastening them.

DE-18 A 12-11
CHAPTER
3 Cylinder Head and Valves
ITEM

1.8 DE-18 Cylinder Head :Reassembly

Q. Mount the fuel high-pressure block.

Apply lubricant (Molykote 1000 Spray) to the
threaded portions and the bearing surfaces of
the mounting bolts, and tighten them to the spec-
ified torque while adjusting the position of the
block in relation to the fuel oil injection pump.

Specified torque: 40 N•m

(on the head and pump sides)

When mounting the fuel high-pressure block,

tighten mounting bolts evenly to prevent block
inclining.

All high-pressure joints on the fuel oil injection

system are connected with metal touch. Take
utmost care that the contact surfaces of the
joints are not damaged or the joints do not
catch foreign matter.

R. Mount the exhaust pipe.

S. Mount the cooling water outlet main pipe.
T. Fit the cylinder head cover, the heat box cover
and the exhaust pipe cover.

DE-18 A 12-11
 CHAPTER
Cylinder Head and Valves 3
ITEM
Intake and Exhaust Valves: General of Structure DE-18 2.1

3-2 Intake and Exhaust Valves

3-2.1 General of Structure
The engine has four valves, i.e. two intake
valves and two exhaust valves. A valve rotator is
provided on the upper part of each valve.
A stem seal is fitted to the upper part of each
intake or exhaust valve guide to appropriately con-
trol the amount of lubricating oil to be supplied to 3
the stem.

The intake and exhaust valves have the iden-

tical valve disc and are of the same size, but
they are made of different materials. To pre-
vent incorrect assembly, an identification mark
is applied on the top of each valve. In addition,
the diameters of the valve stems are different
by 0.5 mm.
The valve rotators and valve cotters are com-
mon to the intake and exhaust sides.

Intake/exhaust valve (single unit): 0.56 kg each

DE-18 Z 12-01
CHAPTER
3 Cylinder Head and Valves
ITEM
Intake and Exhaust Valves: Replacement Consumable
2.2, 2.3 DE-18 Parts, Tools and Measuring Instruments/Disassembly

(3)
3-2.2 Replacement Consumable Parts,
Tools and Measuring
Instruments (1)
A. Replacement consumable parts
Replace the following parts with new ones.
( :"Parts List") (2)
① Valve stem seal In. 2-14 No.7
② Valve stem seal Ex. 2-14 No.8

B. Tools and measuring instruments

(b) Valve Spring Tools (g) Stem Seal Tool
(a)General tools and measuring instruments
( ：2-2)
(b)Valve spring tools( ：Use the nozzle hold-
er extracting tools in 3-1.2.)
(1) Plate
(2) Base (c) Valve facing-up tool (d)Valve facing-up spring
(3) Bolt M16x55
(c) Valve facing-up tool
(d) Valve facing-up spring
(e) Valve seat cutter (optional)
(f) Valve seat grinding tool (optional)
(g) Stem seal tools (each one for intake and
exhaust)

3-2.3 Disassembly of Intake and

Exhaust Valves
Disassemble simultaneously the four valves by
using the special disassembling tool.

A. To avoid errors in reassembly, put the intake

and exhaust valve identification marks and
cylinder numbers on the valve heads.
B. Remove the intake and exhaust valve springs
by using the valve spring tools (b).
Valve rotator Cotter (b)-(3)
(1) Fit the base (b)-(2) to the stud bolt for retain-
ing nozzle holder on the cylinder head top sur- (b)-(1)
face by using its current nut.
(2) Fit the plate (b)-(1) onto the valve rotator bodies, Intake/exhaust
valve spring
and screw the special bolt (b)-(3) into the base. (b)-(2)
(3) Further screw the special bolt into depress the Intake/exhaust
valve
intake and exhaust valve springs, and remove
the valve cotters.
(4) Unscrew the special bolt, and remove the
valve spring tools.
(5) Remove the valve rotators and the intake and
exhaust valve springs. Stud bolt for F.O.
injection nozzle holder
C. Draw out the intake and exhaust valves toward
the combustion chamber. Removing the Intake and Exhaust Valves

DE-18 A 12-11
 CHAPTER
Cylinder Head and Valves 3
ITEM
Intake and Exhaust Valves: Inspection and Maintenance DE-18 2.4

3-2.4 Inspection and Maintenance of

Intake and Exhaust Valves When corrosion of the valve stem area and
A. Clean the intake and exhaust valves with washing oil. wear of the intake valve seat is remarkable, a
B. Inspect on the following items. possible cause is low-temperature corrosion.
(1) Corrosion of the valve head area For the prevention of such corrosion, strictly
observe the following:
(2) Corrosion or bending of the valve stem area
1. Set the intake air temperature at a little
(3) Blow-out or pitching of the valve seat area higher level.
(4) Contact conditions of the valve seat area and 2. Exhaust combustion gas by means of air 3
valve stem area running when the engine is stopped.
(5) Perform color check depending on the exis-
tence of cracks and corrosion on each valve
seat and intake/exhaust valve spring
a, b
C. Measuring of the Valve Stem Area Intake / exhaust
valve guide
(1) Measure the stem area of the intake and
exhaust valves using outside micrometer, and A, B

record the data.

(2) Calculate the clearance between the stem
Valve stem
area and valve guide by combining with the A,a: Intake valve
measurement results of the intake and exhaust B,b: Exhaust valve

valve guide inner diameter, and in the case that

the valve is over the replacing limit, replace the Valve Guide Clearance
valve stem of which wear is large.
The wear amount of the valve stem can be cal-
culated by comparing with the non-sliding area.
Nominal size Standard clearance Limit for replacement
(mm) (mm) (mm)
A＝φ14 a＝0.08~0.15 0.32
B＝φ14.5 b＝0.10~0.15 0.32
C

D. Measurement of the Head Thickness and Valve Intake valve Exhaust valve
Seats of the Intake and Exhaust Valves
Valve Head Thickness
Measure the head thickness of the intake and
exhaust valve seat areas, and the valve seat
dimensions with calipers, and record the results.
In the case that the wear is over the replacing
limit, replace it with a new one.

Nominal size Limit for replacement D F

(mm) (mm) Intake valve seat Exhaust valve seat

Intake valve seat area C＝5.5 4.5 Valve Seat Size

Exhaust valve seat are E＝5.5 4.5
Intake valve seat D＝3.0 1.5
Exhaust valve seat F＝2.0 0.5

DE-18 A 12-03
CHAPTER
3 Cylinder Head and Valves
ITEM
Intake and Exhaust Valves: Inspection and Maintenance
2.4 DE-18

E. Facing-up of Intake and Exhaust Valves <Correction procedure>

Facing-up of the intake and exhaust valves, (1) Machine the valve seat using the valve seat
the latter in particular, is one of the most trou- cutter (e) (option).
blesome works in the maintenance work. (2) Machine the angle of the valve seat to make
The care and maintenance period largely the outside contact to be as shown in the figure
depends on the load factor, the fuel oil used, on the right.
and the operating conditions of the engine.
Further, delay in the maintenance of the
engine leads to the acceleration of the wear
If the valve rear face is ground, the valve
and damage of the valves.
strength will be reduced and cause cracking.
So, execute facing-up a little earlier according
Therefore, be minded never to grind the valve
to the situations.
<Facing-up procedure> rear face.
(1) Apply lubricating oil to the valve stem area,
mount the valve facing-up spring (d) on the
valve stem, and insert the valve stem into the Valve facing-up
tool (c)
cylinder head valve guide.
(2) Mount the valve facing-up tool (c) to the valve.
(3) Apply compound to the seat area, and careful-
ly conduct the facing-up. Use the compound in
Exhaust (intake)
the order of the medium grade and fine grade. valve seat
・ Medium grade compound ..... Conduct the Valve facing-up
facing-up as if to strike. spring (d)
・ Fine grade compound ..... Conduct the fin-
ishing facing-up as if to press compound Exhaust (intake)
valve
against the seat.
・ Finally, wash the seat carefully, and con- Valve guide
duct the oil facing-up.
(4) Conduct the blue-lead check of the seat surface Facing-up the
Intake/Exhaust Valve
conduct conditions after finishing the facing-up.
(5) Measure the valve head thicknesses C and E Intake/exhaust valve
and the valve seat dimensions D and F with
calipers again, and confirm that the measured Rear face
valves do not exceed the use limit.

F. Correction of Valves
If flaws on any valve seat are so deep that the +15'
1200
flaws cannot be removed by facing up with
compound, grind (roughly machine) the seat
with a machine or valve seat grinding tool (f)



(optional) before facing-up.  
0
12
120 0
-15'
Intake valve seat Exhaust valve seat

Correction of Valve/Valve seat

DE-18 A 12-03
 CHAPTER
Cylinder Head and Valves 3
ITEM
Intake and Exhaust Valves: Inspection and Replacement of
Valve Rotators/Reassembly DE-18 2.5, 2.6

3-2.5 Inspection and Replacement of

Valve Rotators Each of the stem tools is exclusively for the
intake or exhaust side. The colored rubber
Rotation failures of the valve rotators greatly
seals are used to indicate the difference
affect the valve service life. Periodically inspect
(intake side: gray; exhaust side: green). Also,
the valve rotators. When the rotational speed of
each of the stem seal tools (g) is exclusively
any valve rotator has reduced to the limit for
for the intake or exhaust side.
replacement, replace the rotator assembly.
When reassembling them, take care not to
confuse them. 3
Valve rotator Standard value Limit for replacement ( ： 3-1.5 and 1.6 Replacement of stem
Rotational speed (min-1) 2~5 1/2 of initial rotational speed seal)

3-2.6 Reassembly of Intake and

Exhaust Valves
A. Fit the stem seal onto the valve guide upper
part by using the stem seal tool (g), and apply
grease to the inner periphery (lip).
B. Insert each valve from the combustion chamber
side.
C. Reassemble the valves by using the valve
spring tools (b) in accordance with reverse pro-
cedure to disassembling.

1. Before inserting each valve, check the iden-

tification mark, "I" (intake) or "E" (exhaust),
on the combustion side of the cylinder head.
Insert the valve into its original position
according to the identification mark provided
on the valve head before disassembly. (To
prevent incorrect assembly, the diameters
of the stems on the intake and exhaust
sides are different.)
2. If the inner periphery (lip) of the stem seal is
damaged when the valve is inserted, the
lubricating oil consumption will increase,
and the valve will be contaminated.
Apply lubricating oil to the valve stem, and
slowly insert the valve.

DE-18 Z 12-01
CHAPTER
3 Cylinder Head and Valves
ITEM
Rocker Arm Device: General of structure/Replacement Consumable
3.1～3.3 DE-18 Parts, Tools and Measuring Instruments/Disassembly

3-3 Rocker Arm Device 3-3.2 Replacement Consumable Parts,

3-3.1 General of Structure Tools and Measuring
Instruments
The intake and exhaust valves are driven by the
intake and exhaust cams on the unit type cam A. Replacement consumable parts
shaft through the swing arms, push rods, rocker None
arms and T-yokes. B. Tools and measuring instruments
The parts of the rocker arm device are lubricated (a)General tools and measuring instruments
with the system oil fed from the engine frame ( :2-2)
through the drilled hole in the cylinder head.
Therefore, the rocker arm device has no external
piping. 3-3.3 Disassembly of Rocker Arm
Device
As for the procedure for adjusting the valve end
A. Remove the rocker arm shaft holder (A) tighten-
clearance, refer to the separate "Operation
ing nut, and remove the rocker arm shaft
Manual."
assembly (with rocker arm, shaft and holder).
( ：5-4.1 C "Adjusting Valve End Clearance"
B. Draw out the T-yoke assembly (B) from the T-
in Operation Manual)
yoke guide.
Rocker arm shaft assembly: 9.1 kg C. Remove the snap rings (D) at both ends of the
(incl. rocker arm, shaft and holder) rocker arm shaft (C), and remove the rocker
arms (E) and (F) for the intake and exhaust
valves.

DE-18 Z 12-01
 CHAPTER
Cylinder Head and Valves 3
ITEM
Rocker Arm Device: Inspection and Maintenance / Reassembly
DE-18 3.4, 3.5

3-3.4 Inspection and Maintenance of 3-3.5 Reassembly of Rocker Arm

Rocker Arm Device Device
A. Clean the parts with wash oil. A. Reassemble the rocker arm shaft assembly.
B. Measure the outer diameter of the rocker arm Insert the rocker arm shaft (C) into the intake
shaft (C) with an outside micrometer, measure and exhaust valve rocker arms (E) and (F),
the inner diameter of the bush (G) with a cylin- and fit the snap rings (D).
der gauge, and calculate the clearance. B. Insert the T-yoke assembly (B) into the T-yoke
If the clearance exceeds the limit for guide.
replacement, replace the bush with a new one. C. Mount the rocker arm shaft assembly on the 3
When replacing the bush, align the bush's cylinder head, apply lubricant (MOLYKOTE
oil hole with the pinhole in the valve arm to 1000 SPRAY) to the threaded portion and the
assemble them. bearing surface of the rocker arm shaft holder
(A) tightening nut, and tighten the nut to the
specified torque.

Specified torque: 100 N.m

D. After reassembling, adjust the valve end

clearance.

( ：5-4.1 C "Adjusting Valve End Clearance"

in Operation Manual)

Nominal size Standard clearance Limit for replacement

(mm) (mm) (mm)

D＝φ45 d＝0.04~0.13 0.25

＊Bush press-fitting force: 11~28 kN

C. Inspect the parts.

(1) Check that the bush is not loose and its inter-
nal surface is free from flaws and abnormal
contact (when the bush will be reused).
(2) Check the contact on the sliding parts of the
T-yoke (H) and the T-yoke guide.
(3) Check that the push rod is not bent and its
end faces are free from flaws and abnormal
contact.
(4) Check that the areas "A" and "B" of the T-
yoke assembly (B) in contact with the
intake/exhaust valves are free from flaws and
abnormal contact.
(5) Check that there is no scar, abnormal contact
area or abrasion on the contacting parts A, B,
C, D, and E.

DE-18 Z 12-01
CHAPTER
3 Cylinder Head and Valves
ITEM
Indicator Valves : General Structure / Replacing
4.1,4.2 DE-18 Consumables Parts, Tools and Measuring Instrumenrs

3-4 Indicator Valves

3-4.1 General of Structure

The indicator valve screw is of "left hand screw",

and the valve is opened and closed by the handle
in the directions as shown in the figure.
For the pressure measuring procedure, refer to
the separate manual of the "Operation".
( : "Operation" 5-3.3)

Indicator valve assy.: 1.3 kg

3-4.2 Replacing Consumable Parts,

Tools, and Measuring
Instruments

A. Replacing Consumables
Replace the following parts with new ones:
( : "Parts List")
① Circular gasket 2-37 No.503, 504
② Straight pin 2-37 No.502

B. Tools and Measuring Instruments

(a) General tools and measuring instruments

( : 2-2.2)

DE-18 Z 12-01
 CHAPTER
Cylinder Head and Valves 3
ITEM
Indicator Valves:
Disassembly / Inspection and Maintenance DE-18 4.3,4.4

3-4.3 Disassembly of Indicator Valve

The indicator valve is extremely hot during

operation. If it may be touched with naked
hands during operation or immediately after
the stop, a burn may be caused. Conduct the
maintenance work after the indicator and safe-
ty valves are cooled down sufficiently. 3
(1) Removal of Indicator Valve Assembly
Disconnect the flange mounting nut ⓐ, and
remove the indicator valve assembly from the
cylinder head.
(2) Disassembly of Indicator Valve
a) Take out the hex. plug .
b) Extract the straight pin , and remove the indi-
cator valve nut  from the indicator valve .
c) Extract the indicator valve using a screwdriver.

The threaded part of the indicator valve  is

of "left-handed screw", and the extracting
direction is clockwise as viewed from the side
of the hexagonal plug.

3-4.4 Inspection and Maintenance of

Indicator Valves
(1) Wash all the disassembled parts using wash-
ing oil to eliminate stains such as carbon.
(2) Inspection and maintenance of indicator valve
a) Check the indicator valve seat for scratch or
one-sided contact.
b) When scratch is found, correct it using an oil
stone and apply compound to the seat to
perform the facing-up.
(3) Check the spring for abnormal contact or
scratch, and when scratch is found, replace the
spring with a new one.

DE-18 Z 12-01
CHAPTER
3 Cylinder Head and Valves
ITEM
Inspection and Maintenance /
Indicator Valves :
4.5 DE-18 Assembly and Adjustment / Mounting

3-4.5 Assembly and Mounting of

Indicator Valve
(1) Assemble the indicator valve assembly in the
reverse order of the disassembling procedure.
When assembling, replace the straight pins of
indicator valve with new ones, and fix them to
the indicator nut by caulking the three places
on the both sides respectively.
(2) Blow air to the mounting surface of the cylin-
der head to clean there, and mount the indica-
tor valve assembly while placing the circular
packing  between them.
(3) Apply the lubricating agent "Molykote 1000
Spray" to the threaded part of the mounting
nut, and tighten the nut after adjusting the
direction, so that the indicator valve will not pro-
trude from the cylinder side surface.

Tighten the nuts alternately and uniformly.

Uneven tightening causes the leaks of gases.

The indicator valve is hot during operation. Be

sure to mount the cover.

DE-18 A 14-06
 CHAPTER
Cylinder Head and Valves 3
ITEM
Starting Valve: General Structure / Replacement Consumable
Parts, Tools and Measuring Instruments / Disassembly DE-18 5.1~5.3

3-5 Starting Valve 3-5.2 Replacement Consumable Parts,

3-5.1 General Structure Tools and Measuring
Instruments
The starting valve is an air pilot valve. The pilot
A. Replacement consumable parts
air comes from the starting rotary valve, which
Replace the following parts with new ones.
drives the starting valve piston to open the valve.
Then, the starting air flows into the cylinder. ( ： "Parts List")
The starting valve is on the side of the fuel oil ① Circular packing 3-18 No.503, 504
injection pump in the cylinder head. You can ② O-ring 3-18 No.502 3
remove the starting valve from the assembled
body. B. Tools and measuring instruments
(a) General tools and measuring instruments
If any leakage occurs from the seat of the start-
ing valve, the combustion gas flows back into the ( ： 2-2)
starting air main pipe. This may stick the starting
rotary valve, starting valve, etc., and/or may dam- 3-5.3 Disassembly of Starting Valve
age any of these components. So you must
(1) Remove the starting valve cover a . Insert the
inspect them periodically and perform the mainte-
head of a screwdriver into the brim of the valve
nance work.
body b . Pull out the starting valve assembly
If the starting air pipe overheats during opera-
form the cylinder head.
tion, the gas may be leaking from the starting
valve. Inspect the starting valve in a case like this. (2) Remove the nut d . Pull out the starting valve e .

(3) Pull out the starting valve piston f and the

Starting valve assembly: 1.1 kg spring g .

Starter valve cover a

DE-18 Z 12-01
CHAPTER
3 Cylinder Head and Valves
ITEM
Starting Valve: Inspection and Maintenance / Reassembly
5.4,5.5 DE-18

3-5.4 Inspection and Maintenance of

Starting Valve
(1) Wash each of the parts with oil.
(2) Conduct inspection as follows:
a) Check whether there is any gas leak from
the stick or the seating part of the starting
valve piston.
b) Check whether there is any corrosion or
damage on the spring.
(3) Apply the compound to the starting valve and
the seating part of the valve body b . Assemble
the starting valve and piston together with the valve
body. Move the starting valve and piston manually to
smoothen the compound.
(4) Apply Brew Paste on the seating part of the
starting valve to check the contact area.

Range of contact area: 75% or higher

3-5.5 Reassembly of Starting Valve

(1) Assemble the starting valve assembly as follows:

a) Insert the starting valve into the starting
valve body.
b) Insert the spring and starting valve piston,
and tighten the nuts.

Specified torque: 30 N•m

Use caution not to tighten the nuts on the

starting valve with extreme torque. Otherwise,
the bolt threads may be damaged.

(2) Mount the starting valve assembly on the cylin-

der head. Attach the lids, and tighten the bolts.

Specified torque: 60 N•m

Tighten the bolts gradually, alternately and

evenly. If you tighten them unevenly, the start-
ing air and/or gas may leak.

DE-18 A 16-05
 CHAPTER
Cylinder Head and Valves 3
ITEM
Starting Valve: Replacement of O-rings on Starting Valve Sleeve
DE-18 5.6

3-5.6 Replacement of O-rings on

Starting Valve Sleeve
A. Replacement consumable parts
Replace the following parts with new ones.
( : "Parts List")
① O-ring (starting valve sleeve) 2-14 No.13

(1) Replacement of O-rings

Replace the O-rings in accordance with the
following procedure:
3
① Pull out the starting valve assembly.
( : 3-5.3)
② Remove the snap ring.
③ Insert the head of a screwdriver into the inner
groove of the starting valve sleeve. Pull out
the sleeve.
④ Replace the O-rings.
⑤ To remount the sleeve, apply some grease
on the surface of the O-rings. Push the sleeve
into the sleeve receptacle of the cylinder head
until the sleeve end reaches the bottom of the
sleeve receptacle.
⑥ Attach the snap ring to fasten the sleeve.

DE-18 Z 12-01
CHAPTER
4 Piston and Connecting Rod
ITEM

1 DE-18 General of Structure

4.Piston and Connecting Rod

Monoblock Composite Monoblock Composite
4-1 General of Structure piston piston piston piston
The connecting rod (L) is made by closed die Piston
Piston crown
forging. Its large end part is horizontally divided (G)
into three parts. Piston
Piston pin (D) skirt
The serration surface at the large end part is
fastened with the hydraulic force of the two
crankpin bolts (B). The serration surface at the rod Connecting
Piston pin bush (F) rod (L)
side end is fastened with the four connecting bolts
(A) slanted for larger force.
Rod connecting
The crankpin bearing (C) is made of aluminum bolt (A)
alloy with high anti-abrasion performance.
The piston pin bush (F) is a winding bush and
Serration
staggered to increase the bearing area on the side
to which explosion power is applied.
The piston can be a monoblock cast component
made of ductile cast iron, or can be a composite
component consisting of a piston crown made of
special alloy steel and a piston skirt made of duc- Crankpin bearing (C) Tightening nut (K)
tile cast iron. They are used depending on the pur- Crankpin bolt (B)
poses and the outputs of engines. Both of these Piston and Connecting Rod
pistons have a special coating applied on the
external circumference of the piston skirt. The top-
and second-ring grooves are treated with hard
chromium plating to enhance the anti-abrasion
performance.
The piston is cooled down with lubricating oil,
which flows along the crankshaft, through the pin-
hole in the rod part of the connecting rod, down the
piston pin, and into the cooling cavity in the piston. Monoblock piston Composite piston

The piston rings (H) include four rings in total. Piston (G) Piston crown
They are three compression rings and one oil ring. Piston
Piston
Each of these rings has the sliding surface treated ring (H) ring (H)
with chromium plating.
Piston
crown bolt
Piston type Monoblock Composite
Piston connecting Piston skirt
rod assy. : 63.5 kg 66.8 kg
Piston assy : 16.7 kg 20.0 kg Clamp
Piston pin : 5.7 kg ring (E)
Connecting rod assy. : 41.1 kg Piston pin (D)
Crankpin bolt : 1.2 kg
Piston and Piston Pin

DE-18 B 16-01
 CHAPTER
Piston and Connecting Rod 4
ITEM
Replacement Consumable Parts, Tools and Measuring
Instruments DE-18 2

4-2 Replacement Consumable Parts,

Tools and Measuring Instruments

A. Replacement consumable parts

None
B. Tools and measuring instruments

(a) General tools and measuring instruments

( ： 2-2 )
(b) Hydraulic jack (common to side bolt)
(1) Hydraulic jack assembly
(2) Jack stand
(3) Jack handle
4
(c) Hydraulic pump
(1) Hydraulic pump
(2) High-pressure hose set (terminal, high-
pressure hose)
(d) Piston inserting tool
(e) Protect ring tool
( f ) Piston lifting tools (optional)
(1) Piston support bolt
(2) Washer
(g) Piston ring pliers
(h) Connecting rod large end part dis/reassem-
bling tool
( i ) Socket (1) 24×12.7

DE-18 A 14-01
CHAPTER
4 Piston and Connecting Rod
ITEM

3.1 DE-18 Piston:Extraction of Piston

4-3 Disassembly of Piston and E. Remove the carbon deposited in the piston
Connecting Rod suspending threaded hole using a tap (M10 ×
1.5).
4-3.1 Extraction of Piston
F. Turn the crankshaft to locate the piston to be
Extract the piston after removing the cylinder head. dismantled at the bottom dead center.
( ：3-1.3 "Disassembly of Cylinder Head)
In the case of piston extraction only, it is not
necessary to disassemble the large end part.
Conduct the work by separating the large end part
from the small and trunk part.

If the crankshaft turns while workers are han-

dling parts in the engine frame to extract the
piston, they can be involved in the piston, and
serious accidents can occur.
Before turning the crankshaft, give other work-
ers the sign to stop working. Keep the turning
bar away from the flywheel except when turn-
ing the crankshaft.

<Piston extraction procedure>

A. Take off the cover on the engine frame side on
the both sides of the cylinder to be overhauled,
and turn the crankshaft to place the piston to the
position of about 50°before the top dead center.
B. Place waste cloth on the piston upper surface to
easily discard the removed carbon.
C. Remove the carbons deposited on the upper
areas of protecting ring (M) and cylinder liner (J)
with sandpaper or the like.
D. Extraction the protection ring located in the
upper area of the cylinder liner using the protec-
tion ring (e).
(1) To make clear which side is the topside, write
Tap handle
a mark on the top surface of the protect ring
with an oil-based white marker for example.
Tap (M10˜1.5)
(2) Tap around the entire circumstance of the pro-
tection ring with a plastic hammer.
(3) Spray the lubricating penetrant (KURE 5-56) to Piston (G)
the clearance of the cylinder and protection ring.
(4) Fit the protect ring tool (e), and gradually
remove the piston while turning the nut. (If the
piston cannot be removed smoothly, remove it
while tapping the protect ring uniformly with a Removing of Carbon in the Piston
plastic hammer.) Suspending Threaded Hole

DE-18 A 12-03
 CHAPTER
Piston and Connecting Rod 4
ITEM
Piston:Extraction of Piston DE-18 3.1

If the big end of the connecting rod of the

cylinder that has been disassembled turns After long-term operation, the outer edges of
during turning operation, it may get into con- the rings are sharp. When disassembling,
tact with the frame and may be damaged. wear protective gloves, and take care not to
Slowly turn the crankshaft, taking care that the injure your hands.
big end does not turn.

G. Remove the stop wires from the rod connecting Rod connecting bolt (A) Torque wrench
Ratchet head
bolts (A), and loosen and remove the connecting
bolts using the special socket (i) and a torque
wrench.
4
The rod connecting bolts and the tightening Socket (i)
nuts are stamped a number that indicates the
position. Mount those nuts and bolts in the
same position as before dismantling

Removing the Rod Connecting bolt

H. Turn the crankshaft to place the piston to be
dismantled at the top dead center.
I. Fit the eyebolt M10 at the top of the piston, lift
the piston with a wire rope and a chain block, and
draw out the piston with the connecting rod small
end part.

Screw in the eyebolt completely to the bearing

surface. If the eyebolt is fitted incompletely,
its threaded portion may come off or be dam-
aged, thereby resulting in an accident.

When lifting the piston, take care that the con-

necting rod does not give hit marks to the
cylinder liner inner surface.

J. After drawing out the piston, cover the cylinder

liner with clean cloth or vinyl sheet to prevent
entry of foreign matter into the engine.
K. Keep the piston hung on the wire. Place the
connecting rod flange, for example, on a wood
board on the floor. Use a pair of snap ring pliers
to remove the snap ring (E) on one side.
L. Draw out the piston pin (D), and remove the
connecting rod small end part from the piston.
M. Remove the compression rings and oil ring.

DE-18 B 14-07
CHAPTER
4 Piston and Connecting Rod
ITEM

3.2 DE-18 Connecting Rod Large End Part: Disassembly

4-3.2 Disassembly of Connecting Rod (3) Confirm the oil pressure at which the tighten-
Large End Part ing nuts start turning, and check that the nuts
Disassemble the connecting rod large end part have been tightened without looseness.
to check and replace the crankpin bearing (C) or (4) Remove the hydraulic jack assembly and the
the crankpin bolts (B). When only the piston must jack stand.
be removed, the connecting rod large end part D. Place the large end part sideways. Insert the
need not be disassembled. connecting rod large end part dis/reassembling
When only the crankpin bearing is checked, the tool (h) into the bottom side.
connecting rod large end part can be disassem-
bled without removing the cylinder head while the
piston is lifted.

<Procedure for disassembling the connect-

ing rod large end part>
(By drawing out the piston)
A. Remove the rod connecting bolts (A), and lift
the piston and the connecting rod small end part.
( : 4-3.1 "Piston Extraction" or "Lifting the
piston" given below in this section)
B. Turn the crankshaft to locate the crank pin at
85° before the top dead center and place the
large end part horizontally.
C. Loosen simultaneously the two tightening nuts (K)
of the crankpin bolts (B) using the hydraulic jack
(b).
( : 2-4.2 "Hydraulic Jack:Unscrewing of the nuts")

(1) Set the jack stand (b)-(2), attach the hydraulic

jack assembly (b)-(1) to the crankpin bolts, and
connect the terminal 4T (c)-(iii) and the
hydraulic pump (c)-(1) with the high-pressure
hose (c)-(2).
(2) Operate the hydraulic pump lever to increase
the oil pressure to the specified value, and
loosen the tightening nuts using the jack handle
(b)-(3).

Specified oil pressure: 80 MPa

DE-18 A 14-07
 CHAPTER
Piston and Connecting Rod 4
ITEM
Connecting Rod Large End Part: Disassembly DE-18 3.2

E. Keep turning the crankshaft slowly until the large

end part makes a light contact with the connecting
rod large end part dis/reassembling tool (h). 1. When the flange of the connecting rod trunk
F. Loosen and remove the tightening nuts with separates from the large end while the
hand. crankshaft is being turned to separate the
G. Remove the large end upper and lower parts small end and trunk from the large end, the
from the left and right inspection windows, trunk swings. Be careful not to be injured
respectively. by the trunk.
2. Take care that the connecting rod does not
make hit marks on the cylinder liner.
When removing the large end part on the
trunk side, take care not to damage the
4
crankpin bolt threads and the crankpin.

H. Remove the crankpin metal (C) from the large

end part.
I. Put the cylinder number and upper and lower iden-
tification marks to the disassembled metal parts.

<Disassembling the large end part while lift-

ing the piston>
A. Turn the crankshaft to position the crankpin of
the cylinder to be inspected at the bottom dead
center.
B. Loosen and draw out the rod connecting bolts (A).
C. Turn the crankshaft to position the piston to be
lifted at the top dead center.
D. Remove the fuel high-pressure block and inlet
connector, and draw out the fuel injection valve.
( ：5-4.2 "Extraction of Fuel Injection Valve"
in Operation Manual)
E. Fit the washer (f)-(2) of the piston lifting tools (f)
into the fuel oil injection valve mounting hole.
F. Screw the piston support bolt (f)-(1) into the
threaded hole at the top of the piston, and secure
the bolt with the nut.
G. Then, disassemble the large end part in accor-
dance with Steps B to I of the procedure for dis-
assembling the large end part by drawing out the
piston stated above.

DE-18 A 14-07
CHAPTER
4 Piston and Connecting Rod
ITEM

4.1 DE-18 Piston:Inspection and Maintenance

4-4 Inspection and Maintenance of

Piston and Connecting Rod The piston skirt is treated with special coating.
4-4.1 Inspection and Maintenance of Do not sand the skirt surface.
Piston
C. Clean the piston and rings with wash oil.
The parts handled in this section must con- D. Carefully clean the piston combustion surface,
form to NOx Technical Code. When replacing perform color check, and carefully check for
any of these parts, use the part with the identi- cracks.
fication mark. E. Carefully clean the ring grooves, perform color
( : 0-3 "Engine Conforming to NOx
check, and carefully check for cracks.
Technical Code")

A. Inspect the parts.

Before maintaining the piston, check the parts of Top land (1)

the piston, and record their conditions.

(1) Conditions of the carbon deposited on the
(4) (3)
combustion surface and top land of the piston,
㸦5㸧
and lubricating conditions of the sliding area (8)
(2) Scratch and abnormal contact of the sliding
areas
(3) Sticking of the piston ring, and conditions of (6)
(2)
chrome plating (peeling, abnormal contact, wear) (7)
(4) Conditions of the carbon sludge deposited on
the piston underside and ring grooves
(5) Whether there is partial corrosive wear in a
ring groove Monoblock piston Composite piston
(6) Abnormal contact of the piston pin and pin
boss inner surface Checking of Condition of the Piston
(7) Abnormal contact of the piston pin boss and
connecting rod small end support part.
(8) Condition of the special coating in the piston
skirt part. Conbustion surface
- Color check Top land
Ring groove
Special coating is applied in the skirt part for the Piston crown - Color check
enhancement of the seizure-proof performance. Pin boss
If you keep on an operation with the amount of the
Oil feeding hole
remaining coating small, you run the risk of an
occurrence of scuffing. Therefore, it is recommend-
ed that retreatment be applied once again.
Piston skirt
For the details, please consult with the service (Special coating)
department of our company.
Piston pin Piston
B. Remove carbon that has adhered to the piston
top surface (combustion surface and top land) Inspection and Maintenance of Piston Parts
with fine sand paper.

DE-18 B 16-01
 CHAPTER
Piston and Connecting Rod 4
ITEM
Piston:Inspection and Maintenance DE-18 4.1

F. Clean the piston pin with wash oil, and blow air
into the lubricating hole to clean the inside.

G. Disassembling of the piston crown (In the case

of composite type piston)
2 3
4 1
Loose or breakage of the piston crown bolt
could lead to major accidents, please inspect
tightening state at every 8,000 to 12,000
hours
P
<<Procedure to Detach the Piston Crown>>
4
(1) Position the piston in place with its combus-
tion surface downward. Piston
body
(2) Loosen the connecting nuts in the order
shown in the figure and remove them. Measure
the torque with which a nut starts to turn. In this
way, you must inspect whether the nut has
been loosened.

Specified torque: 60 N・m

(3) Disassemble the body from the crown, paying

attention to the piston crown bolts screwed in
the piston crown to avoid damaging them.
(4) Remove the O-ring from the piston body.
(5) Loosen the piston crown bolts and pull them out.

Specified torque: 40 N・m

H. Measurement of dimensions of piston pin and

piston pin boss
Measure the outer diameter of the piston
pin and the inner diameter of the piston pin
boss. Replace the part that has worn more
heavily with a new one.

Nominal size Standard clearance Limit for replacement Clearance between Piston and Pin Boss
(mm) (mm) (mm)
A＝φ85 a＝0.045~0.075 0.25

DE-18 C 16-01
CHAPTER
4 Piston and Connecting Rod
ITEM

4.2 DE-18 Rings:Inspection and Maintenance

4-4.2 Inspection and Maintenance of

Rings
A. Remove carbon from the compression rings
and oil ring, and clean them with wash oil.
B. The sliding surfaces of the rings and the upper
and lower surfaces of the first ring are plated.
If the plating layer of any ring has worn and the
ground is exposed or the plating layer is cracked,
replace the ring with a new one .
C. Measure the width of each ring and the piston
ring groove width, and calculate the clearance. If
the clearance exceeds the limit for replacement,
replace the ring with a new one.

Nominal size Standard clearance Limit for replacement

(mm) (mm) (mm)
A＝5 a＝0.13~0.17 0.3
B＝5 b＝0.09~0.13 0.3
C＝5 c＝0.075~0.115 0.3
D＝6 d＝0.04~0.08 0.2

After long-term operation, the outer edges of

the rings are sharp. When disassembling,
wear protective gloves, and take care not to
injure your hands.

Replace all rings with new ones in the periodic

maintenance every 8,000~12,000 hours
(2~3years).

DE-18 B 16-01
 CHAPTER
Piston and Connecting Rod 4
ITEM
Connecting Rod:Inspection and Maintenance DE-18 4.3

4-4.3 Inspection and Maintenance of D. Measure the inner diameter of the piston pin
Connecting Rod bush. Calculate the clearance based on the inner
diameter and the measured outer diameter of the
A. Check the following parts, record their condi-
piston pin. If the clearance exceeds the limit for
tions, and, if defective parts are found, repair or
replacement, replace the bush with a new one.
replace them.
(1) Check the contact of the piston pin bush (F) at Nominal size Standard clearance Limit for replacement
(mm) (mm) (mm)
the small end. Check for looseness and devia-
tion of the bush in the fitting area. A＝φ85 a＝0.05~0.12 0.25

(2) Check for flaws and fretting on the mating sur-

<Procedure for replacing the bush>
faces of the trunk and the large end part.
(1) Strike the bush from the small end with a 4
(3) Check for hit marks and peeling on the thread- press or a hammer.
ed portions and bearing surfaces of the rod
(2) Fit a new bush to the shape of the connecting
connecting bolts (A) and the crankpin bolts (B).
rod by pressing or cold-fitting.
(4) Check for wear and fretting on the serrated
surfaces. <By pressing>
(5) Check for hit marks and peeling on the con- Bush press-fitting force: 28~65 KN
tact surfaces of the large end cap with the tight- <By cold-fitting>
ening nuts (K). Soak the bush in liquid nitrogen, pick it up
when bubbles disappear (5~10 min.), and fit it
(6) Check for hit marks and peeling on the thread-
to the piston pin.
ed portions and bearing surfaces of the tighten-
ing nuts (K). E. Check the tightening torque and identification
B. After cleaning the serrated surfaces, perform marks of the rod connecting bolts.
color check to check for flaws. ・ The rod connecting bolts may deviate from the rel-
C. Blow air into the oil hole going through the rod ative positions on the rod because parts are fitted
part to clean the inside. after long-term operation. In this case, re-stamp the
identification marks on the bolts.
( :4-4.5 "Procedure for stamping the torque mark A")
Lubricating Mating Large end part Large end part
holes surfaces (on trunk side) Serration (large end cap) Crank pin bolt (B)

Tightening nut (K) Piston pin bush (F)

a

Rod connecting Mating

Piston pin
bolt (A) surfaces
bush (F)
A

Trunk
Lubricating
holes

Piston pin (D)

Inspecting and Maintaining Clearance of Piston Pin Bush

the Connecting Rod Parts Inner Diameter

DE-18 C 14-07
CHAPTER
4 Piston and Connecting Rod
ITEM
Connecting Rod:Inspection and Maintenance
4.3, 4.4 DE-18 Crankpin Bearing:Inspection and Maintenance

F. When only the connecting rod has been assem-

bled (the large end part and the trunk have been 1. Replace the upper and lower parts of the
mounted without the crankpin metal, and the rod crankpin metal at the same time.
connecting bolts and the crankpin bolts have been 2. While the crankpin metal is used for a long
tightened to the specified torque), measure and time, the tension decreases, and the inner
record the inner diameter of the large end hous- surfaces harden, thereby causing cracking
ing, and check for deformation. and peeling. Replace it with a new one
every 16,000~24,000 hours (4~5 years)
( :4-5 "Assembly of Piston and Connecting Rod")
even if the wear is less than the allowable
limit.
4-4.4 Inspection and Maintenance of
Crankpin Bearing
A. Check that the rear surfaces and mating sur-
faces of the crankpin metal are free from fretting.
Check that the inner surfaces are free from
seizure marks, peeling, cavitation and inclusion of
foreign matter. When defects are minor, repair
the surfaces with an oil whetstone.

The crankpin metal is a thin-walled finished

part, which is provided with appropriate inter-
ference (crush) and tension so that it can get
into close contact with the housing surface.
Therefore, do not repair the rear surfaces and
mating surfaces with a file or scraper.

B. Clean the crankpin metal, measure the thick-

ness with a spherical micrometer, and record it.
Calculate the clearance based on the measured
large end housing inner diameter, crankpin metal
thickness and crankpin diameter. If the clearance
exceeds the limit for replacement, replace the
crankpin metal with a new one.

Nominal size Standard clearance Limit for replacement

(mm) (mm) (mm)
A＝φ165 a＝0.10~0.19 0.3

DE-18 A 14-07
 CHAPTER
Piston and Connecting Rod 4
ITEM
Connecting Rod Bolts:Replacement DE-18 4.5

4-4.5 Replacement of Connecting Rod Engine ID No.

Bolts
Cylinder No. Bolt No.
Replace the crankpin bolts and the rod connect-
ing bolts with new ones every 16,000 ~ 24,000 1
When replacing the
1 1
hours (4~5 years) to prevent accidents even if they bolts, stamp them
with the same
have no apparent defects. numbers as the
previous numbers.
A. Replacing the rod connecting bolts
(1) Check the contact of the bearing surface of Identification Marks
on Bolt Head (example)
each bolt head with minium or blue paint lead.
If the contact is unacceptable, correct the bear-
ing surface of the connecting rod. 4
(2) Stamp the head of each new bolt with the
engine identification number, cylinder number
and bolt number.
(3) Apply some lubricant (Molykote 1000 Spray)
on the thread and the seating side of the bolt.
Use a torque wrench to tighten the bolt to the
tightening torque shown below and loosen the
bolt. Repeat tightening the bolt to the torque Rod connecting bolt
and loosening it two to three times to smoothen
the lubricant. Go on to the next step to stamp
torque mark "A" on the bolt.

Tightening torque: 160 N•m

<Procedure for stamping torque mark "A">

(1) Apply lubricant (MOLYKOTE 1000 SPRAY) to
the threaded portion and bearing surface of
each rod connecting bolt.

1. If different brands of lubricant are applied to

the bolts, the bolt will differ in axial force.
Be sure to use MOLYKOTE 1000 SPRAY
(genuine part).
2. As MOLYKOTE dries, its friction properties
change. After spraying, immediately tighten
Mark B
the bolts before it dries.
Matchmark
(2) Tighten the bolts in the following order to the on bolt
Turning angle
torque A using a torque wrench. Mark A

Torque A : 50 N・m Angular T ightening

Tightening order: 1-4-2-3-1

DE-18 A 14-07
CHAPTER
4 Piston and Connecting Rod
ITEM

4.5 DE-18 Connecting Rod Bolts:Replacement

(3) Stamp the bolt with torque mark "A" aligning

with mark "A" on the rod body. 3 1
Mark A

When re-stamping the bolt in use with torque Mark B

mark "A," crush the previous mark, and stamp
clearly new torque mark "A" so that the new 4 2
mark is not be confused with the previous
Emboss Rod connecting bolt
mark when reassembling.
Bolt Tightening Order
B. Replacing the crankpin bolts
(1) Check the contact of the seating surface of the
tightening nuts by means of red lead primer or
blue paint lead, and correct the seating surface of
the connecting rod when the contact is not good.
(2) Punch the engine identification number, the
cylinder number and the bolt number of the bolt
to be replaced on the head of the new bolt.
(3) Apply lubricant (Molykote 1000 Spray) to the
embedded thread of the stud bolts.
(4) Wash the tapped holes in the large end and blow
them by air, and then screw the bolts by hand.
(5) Attach a hexagonal bar head on the head of
each of the rod connecting bolts and the
crankpin bolts and repeat its tightening and
loosening for three to four times with the speci-
fied torque by means of a torque wrench to
adapt the thread of the bolt to the thread of the
tapped hole, and then finally tighten it.
(6) After tightening, according to the body side mark,
stamp new tightening check mark to the tightening nut.

Specified torque: 300 N・m

Body side mark

Bolt No.
1 2

Crankpin bolt

Nut side mark of

tightening check Emboss

If you have replaced the tightening nut or bolt, after tightening, Replacing the Crankpin Bolts
according to the body side mark, please stamp new tightening
check mark to the tightening nut.

Re-Stamped of the Tightening Nut

DE-18 A 15-04
 CHAPTER
Piston and Connecting Rod 4
ITEM
Connecting Rod Large End Part: Reassembly DE-18 5.1

4-5 Reassembly of Piston and

Connecting Rod The bolts and the tightening nuts are stamped
a number that indicates the position.
4-5.1 Reassembly of Connecting Rod Mount those nuts and bolts in the same posi-
Large End Part tion as before dismantling.
A. Before reassembling, clean the parts with wash
oil, and blow air into the threaded holes. I. Attach the hydraulic jack in the same manner as
B. Screw the crankpin bolts to the specified torque. when disassembling, tighten simultaneously the
( : 4-4.5 B. "Replacing the crankpin bolts") two nuts to the specified oil pressure.
J. Remove the hydraulic jack. Check that the tight-
ening match mark on the nut is at the position
・ Bolts and nuts are marked with the numbers. of the mark on the side or that the nut is further
Therefore, be sure to set them in the original
positions, so that it will not be caused to mis- (
tightened exceeding the mark on the side.
: 2-4 "Hydraulic Jack": Tightening of the Nuts)
4
take the assembling positions.
・ When the embedded work of stud bolt is Specified oil pressure: 80 MPa
inadequate, because the match mark is shift-
ed, securely tightened to the specified K. If the tightening match mark on the nut has not
torque, make sure that the bolt touches with reached the mark on the side, loosen the nut
the hole bottom. and retry the steps in I and J above.

C. Wipe dirt and oil off the large end housing inner
surface and the crankpin bearing rear surface. If the bolts are tightened insufficiently, the
bearing and the serrations of the large end
part are damaged, and serious accidents,
Do not apply lubricating oil or grease to the such as breakage of the bolts, may occur.
bearing rear surface. Oil on the rear surface Tighten them securely.
can deteriorate the fit.

D. Check the identification marks on the crankpin L. Lightly turn the large end by hand to make cer-
bearing, fit the claw into the groove in the large tain that it smoothly turns.
end housing, and mount the bearing in the center
The mark on the large-end side
of the large end housing.
E. Tap the center of the crankpin bearing by hand
to fit the bearing closely to the housing.
F. Wipe cleanly the crankpin surface, and apply
lubricating oil to the crankpin and the crankpin
bearing inner surface.
G. Use the connecting rod large end part Tightening match mark
dis/reassembling tool (h) that have been used for of the tightening nut
the disassembly. While using caution not to dam-
age the crankpin or the thread on the crankpin
bolt, fit the large end part in place from both sides
A tightening match mark is inscribed on the tightening
just like you have done so during disassembly,
nut in the original component. After tightening the nut
only in the opposite direction this time.
with the prescribed hydraulic pressure, check that
the tightening match mark on the nut is at the position
When reassembling, check that the cylinder of the mark on the large-end side or that the nut is further
numbers on the connecting rod large end part tightened exceeding the mark on the large-end side.
are the same and the embosses are set on If a bolt or a tightening nut is replaced, inscribe a new
the engine front side. tightening match mark on the nut at the position of the
mark on the large-end side.
H. Screw in the tightening nut of each crankpin bolt
by hand until it gets into contact with the surface. Tightening the Crankpin Bolt

DE-18 B 14-06
CHAPTER
4 Piston and Connecting Rod
ITEM
Reassembly: Reassembly of Connecting Rod Large End Part
5.1,5.2 DE-18 / Reassembly of Piston (Composite Piston)

(6) After tightening the bolt with the specified

torque, make sure that the bolt is perpendicular
to the connecting surface.
B. Attach the O-ring on the piston body.
C. Set the piston body on the piston crown, paying
attention to the position of the spring pin on the
piston crown.
D. Check the contact angles and/or the contact
surfaces of the washers, nuts, and bolts by fol-
lowing the steps listed below.
(1) Remove foreign substance, oil, etc., if any,
from each contact surface of the washers, nuts,
Tightening nut bolts, and skirts.
(2) Apply brew paste on the round surfaces of the
washers and the seating surfaces of the nuts.

Assembling the Connecting Rod Large End Part

Engine identification number

Cylinder number
 Nut position number
 

 

Bolt position number

Sequence of Tightening of the Tightening Nuts
Mark of the Tightening Nut and the Crankpin Bolt (View “P”)

4-5.2 Reassembly of Piston (In the case

of composite piston)
When having disassembled the piston crown
and the piston body, follow the procedure below
for reassembly. Before starting reassembly, clean
each part and dry them with air.
Piston
A. Insert and screw the piston crown bolts into the body
crown by following the steps listed below.
(1) Remove foreign substance, oil, etc., if any, from
the threaded parts of the crown and the bolts
(2) Apply some brew paste on the contact surface
at the end of the connecting part of the bolt.
(3) Insert and screw the bolt with the specified
torque, and then remove the bolt. Inspect the
brew paste on the contact surface at the end to
know how the bolt makes the contact. Make
correction if the contact is not satisfactory.
(4) Apply the lubricant (Molykote 1000 Spray) on the
threaded part on the connecting side of the bolt.
(5) Insert and screw the bolt with the specified
torque. Assembling of the Piston Crown
Specified torque: 40 N・m

DE-18 A 16-01
 CHAPTER
Piston and Connecting Rod 4
ITEM
Reassembly: Reassembly of Piston (Composite Piston) DE-18 5.2

(3) Tighten the nuts with the initial torque in the

order from 1 to 4 as shown in the figure.

Initial torque: 30 N・m

(4) Tighten the nuts with the specified torque in

the order from 1 to 4 as shown in the figure.

Specified torque: 60 N・m

(5) As shown in the figure, paint or draw the

marks on the bolt end surfaces and the piston
skirt pin bosses. Loosen the nuts by turning
4
them approx. 60°. (Loosen the nuts in the same
order as when disassembling the piston crown.)
(6) Tighten the nuts once again with the specified
torque in the order from 1 to 4 as shown in the
figure.
(7) Loosen the nuts and remove them. Inspect
the contact surfaces on the round surfaces of
the seating surfaces and the seating surfaces
of the nuts. At the same time, inspect the
marks to make sure that the bolts do not turn
together with any other part.
E. Tighten the bolt for the final time by following
the steps listed below.
(1) Remove the brew paste from the round sur-
faces of the seating surfaces, the seating sur-
faces of the nuts, and the contact surfaces of
the washers on the skirt. Erase the marks from
the end surfaces of the bolts and from the skirt.
(2) Apply the lubricant (Molykote 1000 Spray) on the
round surfaces of the seating surfaces, the seating
surfaces of the nuts, and the threads of the bolts.
(3) Tighten the nuts with the initial torque in the
order from 1 to 4 as shown in the figure.
(4) Tighten the nuts with the specified torque in
the order from 1 to 4 as shown in the figure.
(5) Loosen the nuts by turning approx. 60°, and
then tighten the nuts once again with the speci-
fied torque in the order from 1 to 4 as shown in
the figure. (Loosen the nuts in the same order
as when disassembling the piston crown.)

DE-18 Z 16-01
CHAPTER
4 Piston and Connecting Rod
ITEM
5.3 DE-18 Reassembly: Reassembly of Piston and Connecting rod

4-5.3 Reassembly of Piston and G. Fit the rings with their production marks upward
Connecting rod (on the combustion chamber side). Fit them in the
correct positions shown in the figure.
A. Before reassembling the piston, clean the parts, H. Shift the positions of the closed gaps of the
and blow air to them. rings by 90° to prevent the closed gaps form
B. Reassemble the piston and the connecting rod trunk. aligning with each other. (See the attached draw-
(1) Mount the eyebolt M10 on the topside of the piston ing "Configuration and Assembly of Rings".)
surely. Hang the piston by using the eyebolt M10.
(2) Place the connecting rod on its flange part on
a wood piece for example. Align the raised face
(φ10 mm) on the flange of the rod part of the
connecting rod with the stamp "F" on the com-
bustion surface of the piston. Insert the rod part
of the connecting rod into the piston.

Make sure that the identification numbers at

the large and small ends are the same.

(3) Apply lubricating oil to the outer periphery of

the piston pin and the inside of the piston pin
boss, align the pin holes while suspending the
piston, and insert the piston pin.
(4) Fit the snap ring into the groove using snap
ring pliers.
C. Fit the piston inserting tool into the upper part
of the cylinder liner.
D. Turn the crankshaft to position the crankpin of
the cylinder to which the piston will be attached
at the bottom dead center.
E. Fit the oil ring.
(1) Wind the coil in the oil ring groove in the pis-
ton, and insert the coil joint.
(2) Set the coil joint on the opposite side to the
ring closed gap.
F. Use the piston ring pliers to mount the com-
pression rings.

( : 4-4.2 " Inspection and Maintenance of Rings")

DE-18 B 16-01
 CHAPTER
Piston and Connecting Rod 4
ITEM
Reassembly: Reassembly of Piston and Connecting rod DE-18 5.3

I. Apply lubricating oil sufficiently to the piston, pis- (3) Tighten the bolts to the mark "B" in the order
ton rings, piston inserting tool and cylinder liner of 1-4-2-3-1.
with a lubricator. ・ Torque A: 50 N・m
J. Check the cylinder number. Check that the mark "F" ・ Angular tightening (mark "B"): + turning
at the piston top and the emboss on the connecting angle of 25°
rod are set on the engine front side, and insert the
piston into the cylinder liner. Lower the piston slowly,
and fit the knocks of the large end part and the trunk.

1. When mounting the piston in the cylinder

liner, tap the periphery of the piston with a 4
plastic hammer to facilitate lowering.
If the piston cannot be lowered smoothly, do
not insert it forcibly. Once lift the piston,
and insert it again.
2. Take care that the flange of the connecting
rod trunk does not damage the inner sur-
face of the cylinder liner.

K. Make sure that the knocks are fitted completely,

and remove the eyebolt M10 at the piston top and
the piston inserting tool.
L. Apply lubricant (Molykote 1000 Spray) to the
threaded portions and bearing surfaces of the rod
connecting bolts, and fit the bolts to their posi-
tions marked with the identification numbers.
M. Tighten the rod connecting bolts to the speci-
fied angle in accordance with the following proce-
dure.
<Bolt tightening procedure>
(1) Tighten the bolts uniformly in the tightening
order (1-4-2-3-1) to the specified torque A.
(2) Make sure that the torque mark "A" on the bolt
is aligned with the mark "A" on the bearing
surface.

3 1
Mark A
If the torque marks "A" are not aligned, put the
marks again in accordance with the procedure Mark B
stated in 4-4.5 A.

4 2

Emboss Rod connecting bolt

Bolt Tightening Order

DE-18 B 16-01
CHAPTER
4 Piston and Connecting Rod
ITEM
Reassembly: Reassembly of Piston and Connecting rod
5.3,5.4 DE-18 / Confirmation of Connecting Rod Bolt Tightening Force and Retightening

N. Check that the connecting rod large end part

has allowance for side motion. If there are no
problems, fit a wire ring to prevent turning.

Use a stainless wire of 1.2 mm in diameter for

the wiring.

O. Insert the protection ring into the cylinder liner

by hand, taking care not to tilt it.

When the piston and the connecting rod have

been disassembled, conduct a test run after
the completion of restoration. Ensure that
there are no abnormalities by touching. Then,
start normal operation.
Checking the Connecting Rod Side Motion

4-5.4 Confirmation of Connecting Rod

Bolt Tightening Force and
Retightening

If the bolt tightening force is insufficient, seri-

ous accidents, such as breakage of the bolts,
may occur during operation. Be sure to
retighten them.

Check the tightening conditions of the crankpin

bolt and rod connecting bolt and retighten them
within 3,000 hours after initial operation, overhaul, Protection ring
maintenance after installation or bolt replacement, Inserting of Protection Ring
in consideration of initial run-in, and check the
tightening force periodically (every less than 6,000
hours) after that. 35

A. Retightening the crankpin bolts

(1) Turn the crankshaft to position the crankpin of (b)-(2)
the cylinder to be checked at 35° before the top (b)-(1)
dead center.
(c)-(3)
(2) Attach the hydraulic jack to both bolts, and
tighten them to the specified oil pressure. (c)-(4)

( :4-5.1 "Reassembly of Connecting Rod Large End Part")

( :2-4 "Hydraulic Jack")

Specified oil pressure: 80 MPa (c)-(2) (c)-(1)

Retightening the Crankpin Bolts

DE-18 C 16-01
 CHAPTER
Piston and Connecting Rod 4
ITEM
Reassembly: Confirmation of Connecting Rod Bolt
Tightening Force and Retightening DE-18 5.4

(3) Fit the jack handle into the tightening nut, and 1
3 Mark A
check that the tightening nut does not move
any angle (turn further). If the nut does not Mark B
turn, its tightening force is normal.
(4) If the nut turns, retighten it. (Retighten the 4 2
tightening nut increasing the oil pressure from 0
Emboss Rod connecting bolt
to the specified oil pressure. Repeat this two or
three times, and make sure that the tightening Bolt Tightening Order
nut does not turn.)

B. Retightening the rod connecting bolts

Rod connecting bolt (A) Torque wrench
4
(1) Turn the crankshaft to position the crankpin of
Ratchet head
the cylinder to be checked at the bottom dead
center.
(2) Remove the wire rings.
(3) Set the torque wrench to the "tightening force
checking torque" shown below and tighten the
Socket (i)
bolt. The tightening force is normal if the bolt
does not turn.

Tightening force checking torque: 160 N•m

Retightening the Rod Connecting Bolts
(4) If any bolt turns, once remove the bolt, and
stamp the bolt with the torque mark "A" again,
and tighten it to the specified angle.

( :4-4.5 A. "Procedure for stamping torque

mark "A")

DE-18 D 16-01
CHAPTER
5 Engine Frame and Cylinder Liner
ITEM
General of Structure / Replacement Consumable Parts, Tools and
1, 2, 3 DE-18 Measuring Instruments/Inspection and Maintenance of Engine Frame

5.Engine Frame and Cylinder Liner (4) (3) (2)

5-1 General of Structure (1)

The engine frame is made of cast iron and has a
suspension metal structure. The main bearing is
hydraulically tightened firmly by the large-diameter
main bearing bolts and side bolts.
The side cover on the exhaust pipe side has two
engine frame safety valves installed. (b) Cylinder liner tools
The inner circumference in the upper part of the
cylinder liner has a thin liner protect ring attached
to prevent carbon sludge from accumulating on the
piston top land.
(c) Cylinder bore gauge

Cylinder liner: 52 kg
"a" "b" "c" "d"

Cooling water (d) Cylinder liner position gauge

passage(inlet)

5-3 Inspection and Maintenance of

Lubricating
Engine Frame
oil passage A. Inspect the cylinder head bolts to see if any
loose bolt is found. When replacing any of the
cylinder head bolts, apply Molykote 1000 Spray
on the thread of the stud bolt.

Stud bolt torque: 300 N•m

5-2 Replacement Consumable Parts, B. The O-rings are attached between the engine
Tools and Measuring Instruments frame and cylinder head bolts as sealing in order
to prevent water or oil staying in the space of the
A. Replacement consumable parts
threads of the stud bolts after the cylinder head
Replace the following parts with new ones.
bolts are tightened. Replace the O-rings when
( :"Parts List")
replacing the cylinder head bolts or when
① O-ring 2-11 No.6, 501 16,000~24,000 hours (4~5 years) have elapsed.
B. Tools and measuring instruments
C. Clean the intake duct, which forms a part of the
(a) General tools and measuring instruments
engine frame. If the anti-rust coating on the inner
( ： 2-2 )
surface has been peeled off, repair it (with Nippon
(b) Cylinder liner tools
Paint Hipon 20P-HB or equivalent).
(1) Tool 1 (3) Tool 3
(2) Tool 2 (4) Nut Inspect the drain holes (there are two holes in
(c) Cylinder bore gauge (175~200 mm) front and rear of the air intake chamber) to see if
(d) Cylinder liner position gauge they are clogged.

DE-18 A 12-03
 CHAPTER
Engine Frame and Cylinder Liner 5
ITEM
Inspection and Maintenance of Cylinder Liner Inner
Surface DE-18 4

5-4 Inspection and Maintenance of The degree of abrasion on the inner circum-
Cylinder Liner Inner Surface ference of the liner and protect ring varies
depending on the quality of the fuel oil in use,
After overhauling the cylinder head and the pis-
the maintenance of lubricating oil, the temper-
ton, inspect and maintain the inner surface of cylin-
ature of cooling water, and other conditions.
der liner (hereinafter referred to as the liner) keep-
When the abrasion is large, some troubles
ing it in the engine frame.
may occur, such as blow-by gas and exces-
( :3-1.3 "Disassembly of Cylinder Head" and sive consumption of lubricating oil. Replace
4-3.1 "Extraction of Piston") the liner and protect ring before it is too late
when the abrasion has exceeded, or is about
A. Visual inspection to exceed, the usable range.
(1) Check for adhesion of carbon to the liner inner
surface.
(2) Remove carbon, and check for scratching,
5
scuffing, traces of blow-by and corrosion on the
inner surface.
(3) Check for corrosion and fretting on the protec-
tion ring outer periphery and the liner fitting area.
B. Measure the liner inner diameter.
Keeping the liner mounted on the engine
frame, attach the position gauge (d) in place.
Measure the inner diameters at the four positions
("a" to "d") in the two directions (P-S, A-F),
respectively, with the cylinder bore gauge (c).

Nominal size Limit for replacement Limit for repair

(mm) (mm) (mm)
D = φ185 "a" & "b" 0.60 Uneven wear 0.2
D = φ185 "c" & "d" 0.30 Uneven wear 0.2

C. Measure the thickness of the protection ring (at

the lower side while mounted in place) with a
spherical micrometer, and record the measure-
ment.

Nominal size (mm) Limit for replacement (mm)

a = 6.65 - 0.25

DE-18 A 15-11
CHAPTER
5 Engine Frame and Cylinder Liner
ITEM
Inspection and Maintenance of Cylinder Liner Inner
4, 5 DE-18 Surface / Extraction of Cylinder Liner

D. Dressing (de-glazing) the liner (4) Tighten the nut ②- to completely fasten the
When the piston ring has been replaced or when cylinder liner with the tool 2 ②- and the tool 3
the liner inner surface is mirror-smooth, dress the ②-.
inner surface.
(5) Hang the liner dis/reassembling tool 1 ②-
For dressing, use sandpaper or a honing stone. on a wire rope, and lift it up.
(1) Polish the surface with sandpaper (#80) in the
(6) Remove the liner dis/reassembling tool.
circumferential direction to give the surface
D. Remove the O-rings.
sandpaper traces.
(2) When using a honing stone, correct uneven
wear, and hone the surface to 4~8 μm Rz at a
cross-hatch angle of 40°.
(3) After the completion of honing, measure the
inner diameter, and make sure that the diame-
ter is within the limit for replacement.

The liner in the engine frame can be honed by

a special honing machine, keeping the liner in
the engine frame.
As for the details, consult our service depart- 2-a 2 - a'
e 2-d
ment.
2-c

5-5 Extraction of Cylinder Liner

Before extracting the cylinder liner, remove the Cylinder
head bolt
cylinder head and the piston.

( ：3-1.3 "Disassembly of Cylinder Head" and

4-3.1 "Extraction of Piston")
A. Before extracting the liner, check that water in
the cylinder jacket has drained completely.
B. Spread a plastic sheet or the like to prevent for- O-Ring
eign substances, foreign objects, water drops, or
Cylinder liner
anything else from dropping into the oil pan.
C. Remove the liner as follows:
(1) Use the head bolts as the guides to insert the
liner dis/reassembling tool 1 ②- into the
cylinder.
(2) Attach the tool 2 ②- on the tool 1. Screw
the tool 2 until it reaches the lower end surface
of the liner. 2-b
(3) Turn the nut ②- a' to lift up the liner until the
O-ring at the lower part of the liner is complete- Extraction of Cylinder Liner
ly out of the engine frame.

DE-18 A 12-03
 CHAPTER
Engine Frame and Cylinder Liner 5
ITEM
Inspection and Maintenance of Cylinder Liner Outer
Periphery and Engine Frame Jacket DE-18 6

5-6 Inspection and Maintenance of

Cylinder Liner Outer Periphery and
Engine Frame Jacket
H
B
A. Remove the scales and silicon rubber from the
liner circumference "C" with a wire brush, etc.
B. Perform the color check on the flange fillet "A" A
and the corner "J" of the engine frame stepped
part to check for cracks.
C. Check the liner outer periphery "C" and the C
engine frame jacket "F" for cavitation and corrosion.
If minor corrosion is found, repair them with a
repair agent.
D. Inspect the fittings parts "B" and "D" on the liner
5
and the fitting parts "E" and "G" on the engine D
I
frame to see if any corrosion or fretting corrosion
is found.

Corrosion and cavitation can be caused by the

following factors. Inspection of Liner Outer Periphery
1. Thehe cooling water rust preventive is not
effective.
2. The cooling water pressure is low.
3. Cooling water contains air.
Follow the control standard, and control the
cooling water appropriately.
( :6-3 "Cooling Water Control" in "Operation")

E. If the anticorrosion paint peels off the liner outer

periphery and engine frame jacket, retouch the
surface.

The pale grayish brown deposit is a film

formed by the rust preventive. Do not remove
the film.

F. Clean the contact surface with the cylinder head

gasket 1 on the cylinder liner top face and the
contact surface with the cylinder head gasket 2
on the engine frame top face.
If necessary, apply compound to the contact sur-
face with the cylinder head gasket 1 on the liner
top face, and conduct facing-up.(Facing-up tool:
optional)

DE-18 Z 12-01
CHAPTER
5 Engine Frame and Cylinder Liner
ITEM

7 DE-18 Mounting of Cylinder Liner

5-7 Mounting of Cylinder Liner (5)Turn the nut ②- a' counterclockwise until the
Mount the cylinder liner in accordance with liner fits with the engine frame perfectly.
(6) Remove the liner dis/reassembling tools ②-
reverse procedure to removing.
A. Clean the inner and outer surfaces and O-ring  and②-.
grooves.
B. Install the O-ring on the liner without twisting it. Circular nut e
2 - a' 2 - a
C. Apply some silicon rubber on the outer circum-
ference "H" of the flange in the upper part of the
liner, and on the upper side "I" of the O-ring in the
lower part.
2 - b

Cylinder
1) Do not apply silicone gum to the O-rings. head bolt
2) After applying silicone gum, mount the liner
as soon as possible until the silicone gum
dries.
3) Use caution not to apply too much silicon
rubber. Otherwise, the silicon rubber may
peel off during operation, clogging the cool-
ing path.)

D. Mount the liner as follows:

(1) Attach the liner dis/reassembling tool to the
liner. Tighten the nut ②- to fasten the liner
with the tool 2 ②- and the tool 3 ②-.
(2) Hang the liner dis/reassembling tool 1 ②- 2 - c
on a wire rope. Lift it up with a chain block.
Insert the liner into the engine frame.
Align the punch mark on the liner with the 2 - d
marked lines on the engine frame (in between
the two lines), and slowly lower the liner. Give
the liner a light shake to make sure that it has Mounting of Cylinder Liner
been lowered to the lowest position possible
with no weight but the liner itself.

When inserting, take care that the cylinder

head bolt threads are not damaged and the O-
rings do not break.

(3) Fasten the tool 1 ②- with the head bolt

round nut.
(4) Remove the nut ②- and the tool 3 (2)-.

DE-18 A 12-03
 CHAPTER
Engine Frame and Cylinder Liner 5
ITEM
MEMO DE-18

5
CHAPTER
6 Main Bearing and Thrust Bearings
ITEM

1 DE-18 General of Structure

6.Main Bearing and Thrust Bearings

6-1 General of Structure
The main bearing is of a suspension type. The
main bearing cap is hydraulically tightened firmly
by the main bearing cap bolts and the side bolts.
The main bearing metals is made of aluminum
alloy having high wear resistance. The bearing
metals upper and lower parts are positioned based
on the claw.
The thrust bearing metals are made of aluminum
alloy like the main bearing. The thrust bearing met-
als are mounted in the upper and lower parts on
both sides of the first wall in the rear part of the
engine.

Main bearing cap: 27 kg

DE-18 A 12-03
 CHAPTER
Main Bearing and Thrust Bearings 6
ITEM
Replacement Consumable Parts, Tools and Measuring
Instruments DE-18 2

6-2 Replacement Consumable Parts,

Tools and Measuring Instruments

A. Replacement consumable parts

None
B. Tools and measuring instruments (b) Main Bearing Pin

(a) General tools and measuring instruments

( : 2-2)
(2)
(b) Main bearing pin (3) (5)

(c) Main bearing cap tools

(4)
(1) Tool 1 (5) Nut (7)
(2) Tool 2 (6) Nut
(3) Tool 3 (7) Nut
(4) Nut
(d) Hydraulic jack for main bearing (common to (1) (6)
6
cylinder head bolts)
(c)Main Bearing Cap Tools
(1) Hydraulic jack assembly
(2) Jack stand
(3) Jack handle (1)
(e) Hydraulic jack for side bolt (common to
crankpin bolts) (2)
(1) Hydraulic jack assembly
(2) Jack stand (3)
(3) Jack handle (Use (d)-(3).)
( f ) Hydraulic pump
(1) Hydraulic pump
(2) High-pressure hose assembly (terminal 4T
+ high-pressure hose + female coupler)
(d) Hydraulic Jack for Main Bearing

(1)

(2)

(3)

(f)Hydraulic Pump
(e)Hydraulic Jack for Side Bolt

DE-18 Z 12-01
CHAPTER
6 Main Bearing and Thrust Bearings
ITEM

3.1 DE-18 Main Bearing: Disassembly

6-3 Main Bearing (2) Operate the hydraulic pump lever to increase
the oil pressure to the specified value, and
Normally, disassemble and inspect the main
loosen the nut with the jack handle (e)-(3).
bearing without completely removing the main
bearing cap. Lower the main bearing cap, and
Specified oil pressure: 71 MPa
only the main bearing can be dismantled.

6-3.1 Disassembly of Main Bearing (3) Confirm the oil pressure at which the nut
A. Remove the engine frame side covers of the starts turning, and check that the nut is tight-
cylinders before and after the main bearing to be ened without looseness.
disassembled, and position the crankpin on the (4) Remove the hydraulic jack assemblies and
side on which disassembly and inspection will be jack stands.
performed at approx. 95°before the top dead cen- (5) Remove the nuts, and loosen and remove the
ter. (See the figure shown below.) side bolts.
B. Remove the side bolt protecting cap. Use the
hydraulic jack to remove the side bolt nut.

( ：2-4 "Hydraulic Jack")

The side bolt protecting cap is threaded. Turn

the cap to loosen it before removing it.

(1) Attach the jack stand (e)-(2) and the hydraulic

jack assembly (e)-(1) to each of the side bolts,
and connect the assembly and the hydraulic
pump (f)-(1) with the high-pressure hoses (f)-
(2).

DE-18 Z 12-01
 CHAPTER
Main Bearing and Thrust Bearings 6
ITEM
Main Bearing: Disassembly DE-18 3.1

C. Remove the main bearing cap tightening nuts D. Lower the main bearing cap in accordance with
(c) by using the hydraulic jack. the following procedure.
( ： 2-4 "Hydraulic Jack") (1) Attach the main bearing cap tools (c) to the
(1) Attach the jack stand (d)-(2) and the hydraulic main bearing cap bolt.
jack assembly (d)-(1) to each main bearing cap (a) Screw the tool 3 (c)-(3) to which the nut (c)-
bolt, and connect the assembly to the hydraulic (4) have been fitted into each main bearing
pump (f)-(1) with the high-pressure hoses (f)-(2). cap bolt until the tool tip gets into contact.
(b) Fit the tool 2 (c)-(2) and the tool 1 (c)-(1) to
(2) Operate the hydraulic pump lever to increase
which the nuts (c)-(5), (6) and (7) have been
the oil pressure to the specified value, and
fitted onto the tools 3 (c)-(3) from the side, and
loosen the main bearing cap tightening nut (c)
secure the tool with the nuts (c)-(4).
by using the jack handle (d)-(3).
(c) Fit the tool 2 (c)-(2) to the main bearing cap,
fix the tool 2 (c)-(2) with the nut (c)-(5).
Specified oil pressure: 56 MPa

Main bearing cap

(d)-(3) 6
(f)-(2)
Main bearing
cap bolt

(f)-(3) (f)-(1)
(f)-(4)
(C)

(d)-(2)
(d)-(1)

Removing the Main Bearing Cap Tightening Nuts

(3) Confirm the oil pressure at which the main

bearing cap tightening nut starts turning, and
check that the nut has been tightened without Engine frame

looseness.
Main bearing
(4) Remove the high-pressure hose from the cap
hydraulic jack assembly, and remove the Main bearing
Approx. 15 mm
cap bolt
hydraulic jack assembly and the jack stand.
(5) Loosen the main bearing cap tightening nut
Tightening
approx. 15 mm from the nut contact surface of nut (c)
(c)-(5) (c)-(4)
the main bearing cap.
(c)-(3)
(c)-(7) (c)-(6)
(c)-(1) (c)-(2)
Do not remove the nuts from the bolts to pre-
vent the main bearing cap from dropping by
Fitting the Main Bearing Cap
gravity.

DE-18 Z 12-01
CHAPTER
6 Main Bearing and Thrust Bearings
ITEM

3.1 DE-18 Main Bearing: Disassembly

(2) Turn the nut (c)-(7) to lower it until it touches

the tool (c)-(1), and turn the two main bearing
cap tightening nuts to remove them from the 1. Do not turn the crankshaft in the wrong
main bearing cap bolts. Put the nuts on the direction. The main bearing has a position-
tool (c)-(1). ing claw. If the crankshaft is turned in the
reverse direction, the claw will be damaged.
(3) Raise the nut (c)-(7) approx. 15 mm, and turn
2. When removing the upper bearing, receive
the nut (c)-(6) to lower the main bearing cap.
it in your palm to avoid damaging it.

If the nut is raised more than 15 mm, the main

bearing cap may drop by gravity.
Engine
frame
(4) Repeat the operation (3) to lower the main
bearing cap until the distance between the nut Main bearing
cap bolt
(c)-(5) and the nut (c)-(7) becomes approx. 10
mm. Lower bearing
metal

1. When the main bearing cap cannot be low-

Main bearing
ered smoothly, loosen the side bolts on both cap
sides, and the cap will be lowered smoothly.
2. Do not remove the main bearing cap com-
pletely from the engine frame. If it is
removed carelessly, it may not be re-fitted.

E. Remove the lower bearing from the main bear-

ing cap.
Put a wooden piece to the end face of the bear-
ing, and tap the piece. Then, the bearing can be
easily removed.
F. Remove the upper bearing in accordance with
the following procedure.
(1) Insert the main bearing pin (b) into the lubri-
cating hole in the crankshaft.

Take care that the main bearing pin does not

come off the lubricating hole.

(2) Press the main bearing pin against the end

face of the upper bearing (without a claw), turn
the crankshaft counterclockwise when viewed
from the engine front side, and remove the
upper bearing.

DE-18 Z 12-01
 CHAPTER
Main Bearing and Thrust Bearings 6
ITEM
Main Bearing: Inspection and Maintenance DE-18 3.2

6-3.2 Inspection and Maintenance of

Main Bearing
Check for seizure marks,
A. Check that the rear surfaces and mating sur- peeling, cavitation and
Upper bearing
inclusion of foreign matter.
faces of the main bearing are free from fretting.
Check that the inner surfaces are free from
seizure marks, peeling, cavitation and inclusion of
foreign matter. When defects are minor, repair
the surfaces with an oil whetstone.

The main bearing metal is a thin-walled fin-

ished part, which is provided with appropriate
interference (crush) and tension so that it gets
into close contact with the housing surface. Check for fretting. Lower bearing

Therefore, do not correct the rear surfaces

and mating surfaces with a file or a scraper. Main Bearing
6

1.While the main bearing metal is used for a

long time, even if it has not so heavily worn,
the tension decreases, and the inner sur-
faces harden, thereby causing cracking and
peeling. Replace the bearing with a new
one every 16,000~24,000 hours (4~5
years).
2.Replace the upper and lower parts of the Mating surfaces
main bearing metal at the same time.

B. Check the bearing surfaces of the tightening

nuts and on the cap. If the surfaces are rough,
repair them. Fitting areas
C. If the disassembled main bearing cap tightening
nuts is loosened, retighten the nuts of other main
bearings.
Fitting areas
D. Check that the main bearing cap mating sur-
faces and the contact surfaces of the fitting areas
are free from defects, such as fretting.
Checking the Contact of the Fitting
E. Check for flaws, hit marks and wear on the Areas and Mating Surfaces
crankshaft surface.

DE-18 Z 12-01
CHAPTER
6 Main Bearing and Thrust Bearings
ITEM

3.3 DE-18 Main Bearing: Reassembly

6-3.3 Reassembly of Main Bearing (1) Re-check by touching with bare hands that the
crankshaft journal and the main bearing cap
A. Check visually and by touching with bare hands
inner surface are free from foreign matters and
that the crankshaft journal is free from foreign
flaws.
matter and flaws.
(2) Check the positions of the lower bearing metal,
B. After cleaning the inner and rear surfaces of the
main bearing cap end face and claw, and fit the
main bearing metal with wash oil, carefully wipe
lower bearing to the main bearing cap.
the oil off the surfaces.
Wipe off carefully the oil accumulated in the
bearing part of the engine frame. Do not apply lubricating oil to the rear surface
of the lower bearing metal and the inner sur-
Do not apply lubricating oil to the rear sur- face of the main bearing cap. Oil on these
faces of the main bearing metal. Oil on the surfaces may deteriorate the fit.
rear surfaces can deteriorate the fit.
(3) Make sure that the main bearing metal is com-
C. Mount the upper bearing metal in the engine pletely fitted.
frame in accordance with the following procedure.
(4) Apply a sufficient amount of lubricating oil to
(1) Check the positions of the upper bearing the lower bearing metal inner surface by bare
metal claw and the notch in the engine frame, hand.
and push in the upper bearing by hand from the
side not provided with the claw until it stops.
(2) Insert the main bearing pin (b) into the lubri-
cating hole in the crankshaft in the same man-
ner as when disassembling.
(3) Turn the crankshaft clockwise when viewed
from the engine front side, and push the upper
bearing until its end face aligns with the engine
frame mating surface to the main bearing cap.

When turning the crankshaft, take care that

the main bearing pin does not come off the
bearing end face.

(4) Ensure again that the upper bearing metal is

set in position.
(5) Turn the crankshaft counterclockwise when
viewed from the engine front side, and remove
the main bearing pin.
D. Mount the lower bearing metal in the main bear-
ing cap in accordance with the following proce-
dure.

DE-18 Z 12-01
 CHAPTER
Main Bearing and Thrust Bearings 6
ITEM
Main Bearing: Reassembly DE-18 3.3

E. Mount the main bearing cap in accordance with Tighten the two nuts simultaneously.
reverse procedure for removing.
Specified oil pressure: 56 MPa
(1) Turn the nut (c)-(7) on the main bearing cap
tool (c), and raise the main bearing cap while (2) After tightening them to the specified pres-
fitting the side faces of the main bearing cap to sure, once return the oil pressure to 0, and
the side faces of the engine frame. increase it to the specified value to check the
(2) Screw the tightening nut (c) on each main tightening state.
bearing cap bolt until the nut gets into contact I. After removing the hydraulic jack, check that
with the surface. the tightening check mark on the nut is at the
(3) Screw in the tightening nuts using the jack same position as the mark on the main bearing
handle (d)-(3) until the main bearing cap touch- cap or beyond it.
es the engine frame mating surface. J. If this mark comes short of the mark on the
main bearing cap, loosen the nut and retry
steps H and I.
The nuts for tightening the main bearing cap
have numbers stamped to indicate the original
K. Tighten the side bolts.
(1) In the same manner as when disassembling,
6
bolt locations. Place back these nuts at the attach the side bolt jack stand (e)-(2) and the
original bolt positions. hydraulic jack assembly (e)-(1) to each bolt,
and tighten it to the specified oil pressure.
Tighten the two side bolts of the same main
Make sure that the side faces of the main bearing simultaneously.
bearing cap are fitted to the side faces of the
Specified oil pressure: 70 MPa
engine frame.
(2) After tightening them to the specified pres-
(4) Remove the main bearing cap tools (c). sure, once return the oil pressure to 0, and
increase it to the specified value to check the
tightening state.
To prevent the main bearing cap from drop-
(3) Attach the side bolt protecting rubber cap.
ping from the engine frame, remove the main
bearing cap tools after screwing the tightening
nuts in the main bearing cap bolts.
To attach the side bolt protecting rubber cap,
turn it in the same direction as when you tight-
F. Screw the side bolts in the threaded holes in the
en a screw. Keep turning the side bolt protect-
main bearing cap by hand.
ing rubber cap firmly to the end.
After screwing them until their tips get into contact with Oil leak may occur if the side bolt protecting
the hole bottoms, move them back 1/4 to 1/2 turn. rubber cap is loose.
G. Screw the side bolt nuts by hand until they get
into contact with the surface.
H.Tighten the main bearing cap tightening nuts.
(1) In the same manner as when disassembling,
attach the main bearing jack stand (d)-(2) and
the hydraulic jack assembly (d)-(1) to each nut,
and tighten it to the specified oil pressure.

DE-18 B 16-08
CHAPTER
6 Main Bearing and Thrust Bearings
ITEM

3.3 DE-18 Main Bearing: Reassembly

The tightening check mark on the

main bearing cap tightening nut side

Assembling the Main Bearing Cap

Engine Identification Number the mark on the main bearing cap side
1
View “ Q ”
1 1

Wall Number Nut Number

1... F.O.Injection Pump Side
2... Exhaust Manifold Side When the main bearing cap nut is replaced
(At the Shipment to new one,stamp the engine identification
From the Factory)
number,wall number and nut number same as
Mark of the Main Bearing Cap Tightening Nut old ones.
Also,after tightening the nut,stamp the tight-
ening check mark on the main bearing cap nut
while aligning it with the mark on the main
bearing cap.

DE-18 A 15-09
 CHAPTER
Main Bearing and Thrust Bearings 6
ITEM
Thrust Bearing: Removal DE-18 4.1

6-4 Thrust Bearing C. To remove the upper thrust bearing metal,

press the end face by hand, and it can be easily
The thrust bearings metal are mounted on the
front and rear surfaces of the main bearing No.1 removed.
(on the flywheel side).
The thrust bearings metal can be removed after The upper and lower thrust bearing metasl
the main bearing is disassembled.( ： 6-3.1 make a pair. Mark them for identification to
"Disassembly of main bearing") avoid confusing the front and rear thrust bear-
ings metal.
6-4.1 Removal of Thrust Bearings Metal
A. Before removing the thrust bearings metal,
measure the side clearance of the crankshaft as
stated below.
(1) Shift the crankshaft forward or backward using
a bar, and fit a dial gauge to the crankshaft.
(2) Shift the crankshaft fully to the opposite side, read
the value on the dial gauge, and compare the value
6
with the limit for replacement of thrust bearing.

When fitting the bar on the crankshaft, put the

bar on the crank webs. (Do not put the bar on
the balance weights.)

Magnetic stand

B. The lower thrust bearing metal is mounted on

the main bearing cap No.1 with knock pins (one
pin on each side). Therefore, it can be removed
at the same time when the lower main bearing
metal is removed.

DE-18 Z 12-01
CHAPTER
6 Main Bearing and Thrust Bearings
ITEM

4.2,4.3 DE-18 Thrust Bearing:Maintenance / Reassembly

.6-4.2
Maintenance of Thrust Bearings
Metal
A. Check the thrust bearings metal for seizure
marks and inclusion of foreign matter. If minor
defects are found, repair them with an oil whet-
stone.
B. Measure the thrust bearing metal thickness by
using an outside micrometer, and record the
measurement.
C. When the thrust bearing has worn heavily and
the clearance between the thrust bearing metal
and the crankshaft (side clearance) (d) exceeds
the limit for replacement, replace the thrust bear-
ing metal with a new one.
Replace the thrust bearing metal upper and
lower parts simultaneously.

Nominal size Standard clearance Limit for replacement

(mm) (mm) (mm)
D=83 d＝0.13 ~ 0.30 0.6

6-4.3 Reassembly of Thrust Bearings

Metal
A. Carefully clean the thrust bearings metal, and
apply lubricating oil to the bearing surfaces.
B. Check the identification marks, and insert the
upper thrust bearings metal.
C. Check the identification marks, and fit the lower
thrust bearings metal into the main bearing cap. D
Mount the lower thrust bearings together with the
main bearing cap. d
D. Measure the side clearance (d), and make sure
that it is less than the limit for replacement.

When mounting the thrust bearing metal on

the upper side, make sure that the rear metal
side (the side without an oil groove) faces to Side Clearance
the wall of the engine frame.

DE-18 Z 12-01
 CHAPTER
Main Bearing and Thrust Bearings 6
ITEM
MEMO DE-18

6
CHAPTER
7 Crankshaft
ITEM
General of Structure/Replacement Consumable Parts,
1, 2 DE-18 Tools and Measuring Instruments

7.Crankshaft
7-1 General of Structure
Crankshaft assembly (with balance weights,
Each cylinder is provided with two balance crank gear and auxiliary machine driving gear)
weights, and each balance weight is tightened with 878 kg
two bolts.
A crank gear to drive the cam shaft is fixed by
shrink fitting at the front of the crankshaft, and an
auxiliary machine driving gear to drive the lubricat- 7-2 Replacement Consumable Parts,
ing oil pump and cooling water pump is bolted at Tools and Measuring Instruments
the front end. A. Replacement consumable parts
The lubricating oil flows through the pinhole in None
the frame and reaches the main bearing. The lubri- B. Tools and measuring instruments
cating oil, then, flows through the pinhole in the (a) General tools and measuring instruments
crankshaft to reach the crankpin bearing. The ( ： 2-2 )
lubricating oil, after this, flows through the pinhole
in the connecting rod and lubricates the piston,
cooling down the piston.
To turn the crankshaft, insert the turning bar into
the flywheel, and turn the crankshaft by hand.

DE-18 Z 12-01
 CHAPTER
Crankshaft 7
ITEM
Inspection and Maintenance of Crankshaft:Inspection of Crankpin
DE-18 3.1

7-3 Inspection and Maintenance of C. Perform the color check on the fillets and the
Crankshaft bearing lubricating hole.
If any of the above troubles occurs, carefully
In regular maintenance, inspect and maintain check for hair cracks also on the bearing sliding
the crankshaft in the mounted state without disas- surfaces.
sembling it.
If it is required to overhaul the crankshaft owing
to special reasons, such as bearing seizure and
abnormal wear of the shaft, consult our service
department.

In the event of any of the following troubles,

do not continue to operate the engine. Doing
so may result in serious damages and acci-
dents. Inspect the engine specially carefully.
1. When the engine is operated for a long time
in the critical rotational speed range owing
to torsional vibration
7
2. When the engine is operated at a crank-
shaft deflection exceeding the allowable
limit
3. When the clearance between the crank-
shaft and the bearing is excessively large or
when the crankshaft has worn unevenly
4. When the bearing has burnt out (to a minor
degree)

7-3.1 Inspection of Crankpin

Inspect the crankpin while disassembling the
connecting rod large end.
( : 4-3.2 "Disassembly of Connecting Rod
Large End Part")
A. Check the bearing for flaws and contact.
If the bearing has flaws, repair it with an oil
whetstone, and perform the color check carefully.
B. Measure and record the shaft diameter.
( : 4-4.4 "Inspection and Maintenance of
Crankpin Bearing")

Nominal size Shaft diameter = φ165 mm

DE-18 Z 12-01
CHAPTER
7 Crankshaft
ITEM
Inspection and Maintenance of Crankshaft:Inspection of Crank Journal
3.2, 3.3 DE-18 / Inspection of Balance Weight Bolt Tightening Force

7-3.2 Inspection of Crank Journal

Inspect the crank journal while disassembling
the main bearing.
( : 6-3.1 "Disassembly of Main Bearing")
A. Check the bearing for flaws and contact.
B. Perform the color check on the fillets and the
bearing lubricating holes.
If any of the above troubles occurs, carefully
check for hair cracks also on the bearing sliding
surfaces.

If it is required to disassemble the crankshaft

as the result of inspection, consult our service
department.

7-3.3 Inspection of Balance Weight Bolt

Tightening Force

If the bolt tightening force is insufficient, the

bolts may break during operation, thereby
causing serious accidents. Inspect the tight-
ening force without fail.

A. Inspection every 4,000~6,000 hours (year) (4) If any bolt turns, once remove the bolt, and
Check the wire rings for stopping (for loose- retighten it in accordance with the following
ness and break), and check that the balance procedure.
weight bolts are not loose by hammering. (a) Check the contact surface of the balance
B. Inspection every 16,000~24,000 hours (4~5 weight with the bolt and the mating surface
years) with the crankshaft. If stepped wear or fret-
Check the state of tightening of the balance ting is found, repair the surface with a file.
weight bolts in accordance with the following pro- (b) Carefully check the balance weight bolt for
cedure. roughness on the bearing surface and dam-
aged threads. If the damage is significant,
(1) Remove the wire rings for fitting.
replace the bolt with a new one.
(2) Set the torque wrench to the specified torque,
(c) Apply lubricant (MOLYKOTE 1000
and check the tightening force.
SPRAY) to the bolt threaded portion and
bearing surface, and tighten the bolt to the
Specified torque: 510 N・m
specified torque.
(3) If the bolts cannot be turned, this means that
Specified torque: 510 N・m
the bolts have been completely tightened. Fit
the wire rings to prevent the bolts from loosen- (5) After tightening, fit the wire ring to prevent the
ing. bolt from turning.

DE-18 Z 12-01
 CHAPTER
Crankshaft 7
ITEM
Inspection and Maintenance of Crankshaft:Inspection
of Oil Thrower
Cover Clearance / Measurement of Crankshaft Deflection DE-18 3.4, 4

7-3.4 Inspection of Oil Thrower Cover 7-4 Measurement of Crankshaft

Clearance Deflection
In the state where the main bearing is not disas-
sembled, measure the inner diameter of the rear
1. Measure the deflection in the cold state.
oil thrower cover and the clearance between the
2. If the engine is continuously operated with
cover and the crankshaft with a thickness gauge to
the crankshaft deflection exceeding the
determine the wear of the main bearing.
limit, excessive stress is applied to the
Nominal size (mm) Standard clearance (mm) crankshaft, and, at the worst, the crankshaft
E=φ180 d=0.50 ~ 0.63 will be broken.
When installing the engine, adjust the
deflection appropriately. After starting the
engine, measure the deflection every 2,000
Oil thrower cover ~3,000 hours (6 months). If the deflection
exceeds the limit, correct it.

<Procedure for measuring the crankshaft

deflection> 7
( ：5-4.6 "Measuring Crankshaft Deflection"
in "Operation Manual")

Inspecting the Oil Thrower Cover Clearance

DE-18 Z 12-01
CHAPTER
8 Timing Gears and Camshaft
ITEM
Timing Gears: General of Structure/Replacement
1.1, 1.2 DE-18 Consumable Parts, Tools and Measuring Instruments

8.Timing Gears and Camshaft

Disassembly, reassembly and adjustment of
8-1 Timing Gears
the timing gears, camshaft and parts around
8-1.1 General of Structure them require high skill.
The timing gears are located in the front of the If it is required to do such operations as the
engine. The camshaft is driven by the cam gear result of inspection, contact our service
(C) driven by the crank gear (A) at the front of the department or service agency, and perform
crankshaft through the idle gear (B). the operations under the directions of experi-
The cam gear (C) is supported at the front and enced engineers.
back to reduce the bending stress to the camshaft,
and fixed on the camshaft with bolts together with
the cam gear shaft (D) that is a component of the 8-1.2 Replacement Consumable Parts,
front bearing unit. Tools and Measuring Instruments
Lubricating oil is supplied to the idle gear bush A. Replacement consumable parts
(F) from the lubricating hole in the engine frame Replace the following parts with new ones.
through the drilled hole in the idle gear shaft (E). ( ： "Parts List")
The gear teeth are lubricated with the lubricating
① Camshaft bearing base gasket 2-20 No.13
oil that comes from the lubricating nozzle hole in
the engine frame (I).
Contact our service department for the
The sealing surfaces of the gear case (G) and replacement consumable parts at the time
the cam gear cover (H) that comprise the timing when you remove the pipes from the auxiliary
gear housing are sealed with liquid sealant.
devices and/or related parts installed on the
gear case (G).
Cam gear shaft ：5 kg
Cam gear ：36 kg B. Tools and measuring instruments

Idle gear ：23 kg (a) General tools and measuring instruments

Idle gear shaft ：16 kg ( ： 2-2 )

Auxiliary machine driving gear ：29 kg

DE-18 Z 12-01
 CHAPTER
Timing Gears and Camshaft 8
ITEM
Timing Gears: Disassembly of Idle Gear DE-18 1.3

8-1.3 Disassembly of Idle Gear D. Undo the wire ring, and remove the auxiliary
machine driving gear from the crankshaft.
Disassemble the idle gear after detaching the
E. Before disassembling the idle gear, perform the
gear case and auxiliary devices fitted on the gear
following measurement.
case.
A. Detach all auxiliary devices, such as the cooling 1. Measure the idle gear thrust clearance "e" in
water pump, related pipes and wires from the the axial direction with a thickness gauge, and
gear case (G). record the measurement.
B. Remove the sensor on the tachometer fitted on
the cam gear cover (H), and remove the cam Standard clearance Limit for replacement
(mm) (mm)
gear cover.
C. After checking that the pipes and wires do not e＝ 0.3 ~ 0.5 0.9
hinder the removal of the gear case (G), remove
the gear case.

The fitting surfaces of the gear case and the

cam gear cover to the engine frame are not
provided with packing. The surfaces are
sealed with liquid sealant.
Do not remove them forcibly. Carefully 8
remove them.

DE-18 Z 12-01
CHAPTER
8 Timing Gears and Camshaft
ITEM
Timing Gears:
1.3 DE-18 Disassembly of Idle Gear / Disassembly of Cam Gear

2. Measure and record the backlash of the timing

gears.
a. Bend a lead wire 0.5 mm in diameter along
the tooth profile, and apply grease on the
lead wire.
b. Slowly turn the engine, and stop turning at
the time when the lead wire is engaged.
c. Turn the engine in the reverse direction, b
and remove the lead wire to this side. Lead wire

d. Measure the thickness of the lead wire

(thinnest portions, A and B shown in the fig-
ure) deformed by the tooth surfaces. A B
e. Perform the measurement at four places at
intervals of 90°. The average of four meas-
urements is regarded as the backlash "b".

Backlash Standard value Limit for replacement Backlash (= A + B)

(mm) (mm)
(A+B) b＝ 0.20 ~ 0.30 0.5
8-1.4 Disassembly of Cam Gear
F. Undo the wire rings on the outside six bolts (J),
and remove the idle gear retainer (K).
The cam gear can be removed from the side
G. Screw the eyebolts M12 in the two threaded
by removing the cam gear cover even if the
holes of the idle gear (B), pass a wire rope
gear case is left.
though the eyebolts, and draw out the idle gear to
this side while suspending and supporting the idle
gear. <Disassembly of cam gear 1: disassembling
H. If it is necessary to remove the idle gear shaft cam gear when it is in gear case>
(E), undo the wire rings on the two inner bolts (L), A. Remove the starting valve mounted on the front
and remove the bolts. While screwing bolts alter- side of the gear case.
nately and uniformly into the two threaded holes, B. Remove the camshaft bearing base (N) from
detach the idle gear shaft fitting part from the the gear case.
engine frame. C. Remove the control solenoid valve and the fuel
shutdown valve with the bracket.
D. Remove the tachometer sensor from the cam
gear cover (H), and remove the cover (H).
When detaching the idle gear shaft from the
E. Before disassembling the cam gear, measure
engine frame, be careful that you are not
and record the backlash.
injured by dropping the gear shaft. (Support
( ：8-1.3 E. 2.)
the idle gear with the aid of the drawing bolt,
and carefully handle it.)
Backlash Standard value Limit for replacement
(mm) (mm)
(A+B) b＝ 0.20 ~ 0.30 0.5

DE-18 Z 12-01
 CHAPTER
Timing Gears and Camshaft 8
ITEM
Timing Gears: Disassembly of Cam Gear DE-18 1.4

F. Remove the cam gear. (4) Operate the wire ropes to separate the cam
(1) Before removing the cam gear (C), confirm gear (C) together with the cam gear shaft (D)
the positions of the matchmarks (marked lines) from the cam shaft, and lower them in an
on the cam shaft and the cam gear (C). appropriate position.

When reassembling, align the marks as Use caution to prevent the cam gear shaft (D)
before disassembling. Otherwise, the engine from coming off the cam gear (C) and falling
down during transport.
performance will change.
( :8-2.6 "Inspection of Fuel Oil Injection Timing")
(5) Remove the cam gear shaft (D) from the cam
gear (C).
(2) To avoid causing any damage, insert waste
cloth or the like between the cam gear and the
lower side of the cam gear window frame on
the gear case.
(3) Loosen the 12 cam gear bolts (P) and remove
them. Remove the cam gear shaft (D) from the
cam gear (C). At the same time with this,
remove the cam gear (C) from the camshaft.
(At this time, the cam gear (C) is on the idle Cam gear
gear and the inserted cloth.)
(4) Pull out the cam gear (C) from the window, so Starting
valve
cover
8
that you may mount the eyebolt M12 on one
side of the two screw holes on the rim. Mount
the eyebolt there firmly.
(5) Insert a wire rope into the eyebolt. Use a
chain block to lift the cam gear (C) under your
control. Pull out the cam gear (C) form the win-
dow. Put it down in an appropriate position.

<Disassembly of cam gear 2: disassembling

cam gear by removing gear case>
Remove the auxiliary devices from the gear
case like you do so with the idle gear. Remove the
gear case.( :8-1.3 "Disassembly of Idle Gear")
(1) After removing the gear case, before remov-
ing the cam gear (C), confirm the matchmark
(the inscribed line) on the camshaft and the
cam gear.
(2) Mount the eyebolts M12 firmly in the two
screw holes on the rim of the cam gear (C).
(3) Insert a wire rope in each of the eyebolts. Use
a chain block to lift the cam gear under your
control. Loosen the 12 cam gear bolts (P) and
remove them.

DE-18 Z 12-01
CHAPTER
8 Timing Gears and Camshaft
ITEM
Timing Gears: Inspection and Maintenance
1.5 DE-18

8-1.5 Inspection and Maintenance of K. Check that the idle gear shaft mounting bolts (L)
Timing Gears are tightened properly. (When the idle gear shaft
(E) has not been removed)
A. Clean the gears and parts with wash oil. Undo the wire rings, and tighten the two bolts
B. Carefully remove the liquid seal on the fitting to the specified torque.
surfaces of the gear case (G) and the cam gear
(1) If the bolts do not turn, the tightening force is
cover (H).
normal. Fit the wire rings for securing the bolts.
C. Blow air into the lubricating hole in the idle gear
(2) If the bolts turn, draw out the bolts, and clean
shaft (E) to clean the hole. (When the idle gear
them. At the same time, carefully clean the
shaft has been removed)
internal threads with air. Apply lubricant
D. Blow air into the lubricating hole in the cam gear
(MOLYKOTE 1000 SPRAY) to the bolt thread-
shaft (D) to clean the hole.
ed portions and bearing surfaces, and retighten
E. Check the tooth flank contact between the idle
them to the specified torque.
gear (B) and the cam gear (C). Check for pitch-
ing and flaws on the gears.
F. Turn the crankshaft, and check the crank gear Specified torque: 150 N・m
(A) in the same manner.
G. Check that the idle gear bush (F) and the idle
gear shaft (E) are in contact and they are worn
abnormally.
H. Measure the outer diameter of the bush sliding
part of the idle gear shaft (E) with an outside
micrometer.
I. Measure the inner diameter of the idle gear
bush (F) with a cylinder gauge.
J. Calculate the clearance based on the results of
measurement of the idle gear shaft (E) and the
idle gear bush (F). If the clearance exceeds the
limit for replacement, replace the idle gear bush
(F) with a new one.

Nominal size Standard clearance Limit for replacement

(mm) (mm) (mm)
A＝φ175 a＝0.07 ~ 0.27 0.35

When it is predicted that the clearance will

exceed the limit for replacement before the
next periodic maintenance, replace the bush
even if the clearance is within the limit.

DE-18 A 12-11
 CHAPTER
Timing Gears and Camshaft 8
ITEM
Timing Gears:
Reassembly of Cam Gear / Reassembly of Idle Gear DE-18 1.6, 1.7

8-1.6 Reassembly of Cam Gear 8-1.7 Reassembly of Idle Gear

Reassemble the cam gear in accordance with Reassemble the idle gear in accordance with
reverse procedure to disassembling. reverse procedure to disassembling.
( :8-1.4 "Disassembly of Cam Gear") ( :8-1.3 "Disassembly of Idle Gear")
A. Fit the cam gear shaft (D) into the cam gear (C)
A. Clean the internal threads (8 places) in the
aligning the bolt holes.
engine frame for fitting the idle gear shaft with air.
B. Lift the cam gear (C) together with the cam gear
B. Fit the idle gear shaft (E) into the engine gear,
shaft (D) with a wire rope, and fit it onto the cam shaft.
taking care not to drop it.
C. Apply lubricant (MOLYKOTE 1000 SPRAY) to
While the cam gear and the cam gear shaft the threaded portions and bearing surfaces of the
are being transferred, the cam gear shaft may idle gear shaft mounting bolts (L) (inside, 2 pcs.),
come off the cam gear and drop, thereby and tighten them to the specified torque.
causing personal injury. Watch out for them
while transferring them.
Specified torque: 150 N・m
C. Align the matchmarks (marked lines) position
D. Secure the bolts (L) with wire rings.
before disassembling on the cam gear (C) and
E. Turn the crankshaft to position the cylinder No.1
the camshaft. (Or align the matchmarks given
at the intake top position.
before disassembling.)
F. Lift the idle gear (B) with a wire rope, and move 8
it to the specified position.
Be sure to align the matchmarks on the cam G. Apply lubricating oil to the sliding surfaces of
gear and the cam shaft as before disassembly. the idle gear bush (F) and the idle gear shaft (E).
( :8-2.6 "Inspection of Fuel Oil Injection Timing") H. Fit the idle gear (B) onto the idle gear shaft (E)
while aligning the matchmarks on the idle gear
D. After applying lubricant (MOLYKOTE 1000
(B) and the crank gear (A) and the matchmarks
SPRAY) to the threaded portions and bearing
on the idle gear (B) and the cam gear (C).
surfaces of the cam gear bolts (P), tighten them
I. Fit the idle gear retainer (K) based on the bolt
on the diagonal lines to the specified torque.
hole.
Specified torque: 150 N・m J. Apply lubricant (MOLYKOTE 1000 SPRAY) to
the threaded portions and bearing surfaces of the
E. Apply lubricant to the outer periphery of the cam idle gear mounting bolts (J) (outside, 7 pcs.), and
gear shaft (D). tighten them to the specified torque.
F. Apply liquid sealant to the fitting surface of the
gear case (G), and mount the gear case on the
Specified torque: 150 N・m
engine frame.
G. Fit the packing to the cam shaft bearing base K. Secure the bolts (J) with wire rings.
(N), apply lubricant to the inner surface of the L. Measure the thrust clearance "e" of the idle gear
bearing, fit it to the cam gear shaft (D), and with a thickness gauge, and make sure that the
secure it on the gear case (G) with bolts. clearance is less than the specified value.
H. Fit the packing to the flange (M), and fit the
flange. Specified thrust clearance e = 0.3 ~ 0.5 mm

DE-18 Z 12-01
CHAPTER
8 Timing Gears and Camshaft
ITEM

1.7 DE-18 Timing Gears: Reassembly of Idle Gear

M. Fit the auxiliary machine driving gear onto the N. Clean the fitting surface of the gear case (G),
crank shaft. apply liquid sealant to the surface, and mount the
(1) Apply lubricant (MOLYKOTE 1000 SPRAY) to gear case on the engine frame.
the threaded portions and bearing surfaces of O. Clean the fitting surface of the cam gear cover
the auxiliary machine driving gear mounting (H), apply liquid sealant to the surface, and mount
bolts, and tighten them to the specified torque. the cover on the gear case and the engine frame.
P. Fit the tachometer sensor.
Specified torque: 300 N・m Q. Mount the auxiliary devices, such as the cooling
water pump, in the gear case (G), and fit all relat-
(2) Secure the bolts with wire rings. ed pipes and wires.

<Cautions in reassembling the timing gears>

1.Matchmarks are stamped on the side faces
of the timing gears. When reassembling the
gears, check the matchmarks.
2.When the marked teeth of the crank gear
and the idle gear are engaged, engage also
the marked teeth of the cam gear and the
idle gear.
To check the matchmarks on the cam gear
and the idle gear, remove the plug from the
gear case.

DE-18 Z 12-01
 CHAPTER
Timing Gears and Camshaft 8
ITEM
Camshaft: General of Structure DE-18 2.1

8-2 Camshaft
8-2.1 General of Structure
The drilled hole at the center of the camshaft
The camshaft is a unit having integral intake and
serves as an oil passage for lubricating the
exhaust cams and fuel cam and is divided into two
bearings.
parts.
( ：8-1 "Timing Gears")
The parts are connected with bolts and nuts.
The outer periphery serves as a bearing. ( ：11 "Governor Drive Unit")
At the front end, a cam gear for driving the
camshaft and a cam gear shaft comprising the
Camshaft assembly 186 kg
front bearing are fitted.
(with cam gear and gear shaft)
At the rear end, thrust bearing metals for control- Camshaft 1 (rear) single unit 66 kg
ling the movement of the camshaft in the axial Camshaft 2 (front) assembly 120 kg
direction and a governor driving gear are fitted. (with cam gear and gear shaft)
The gear drives the governor through the drive
unit. In the rear end of the camshaft, a starting
rotary valve is driven, at the end of which is a
tachometer drive unit.
The camshaft bearing metals are provided
before and after the cam gear and on the walls 8
between cylinders. They are cold-fitted directly to
the engine frame.

DE-18 Z 12-01
CHAPTER
8 Timing Gears and Camshaft
ITEM
Camshaft: Replacement Consumable Parts,
2.2 DE-18 Tools and Measuring Instruments

8-2.2 Replacement Consumable Parts,

Tools and Measuring
Instruments

A. Replacement consumable parts

Replace the following parts with new ones.
( ："Parts List")
① Gasket 2-2 No.6
② Circular packing (governor lubricating pipe) (b) Special Ring Head 17 × 12.7
3-3.1.2 No.512
③ Camshaft bearing base gasket 2-20 No.13

B. Tools and measuring instruments

(a) General tools and measuring instruments

( ： 2-2)
(b) Special ring head 17×12.7
(c) Camshaft bearing extracting tools (optional)
(1) Extracting tool 1
(2) Extracting tool 2
(3) Bolt

(3) (1) (2)

(c) Camshaft Bearing Extracting Tools

(optional)

DE-18 Z 12-01
 CHAPTER
Timing Gears and Camshaft 8
ITEM
Camshaft: Disassembly DE-18 2.3

8-2.3 Disassembly of Camshaft B. Remove the tachometer drive unit at the rear of
the engine, the starting rotary valve, the governor,
the governor drive unit, the governor gear case
and related parts, and the pipes.
Disassembling the camshaft will cause dam-
( :11-3 "Disassembly of Governor Drive Unit")
age in the camshaft bearing metal. The
camshaft bearing metal should be replaced C. Remove the camshaft cover on the engine side.
with a new one before embedding camshaft. D. Remove the cylinder head cover, and remove
( : 8-2.4 “Procedure for replacing the the rocker arm device and the push rods.
camshaft bearing”)
( :3-3.3 "Disassembly of Rocker Arm Device")
E. Loosen the fuel oil high-pressure block bolts,
Normally, remove the gear case to disassemble
the camshaft. If the cam gear has been removed, disconnect the block from the fuel oil high-pres-
the camshaft can be drawn out with the gear case sure flange, and detach the fuel oil injection
left on the engine frame. pump.
( :9-3 "Disassembly of Fuel Oil Injection Pump")
( :8-1.4 "Disassembly of Cam Gear")
F. Remove the valve operating device.
A. Remove the auxiliary devices from the gear
( :10-3 "Disassembly of Valve Operating Device")
case in the front of the engine, and the gear case.
( :8-1.3 "Disassembly of Idle Gear")

DE-18 A 12-03
CHAPTER
8 Timing Gears and Camshaft
ITEM

2.3 DE-18 Camshaft: Disassembly

G. Before removing the governor driving gear, L. Then, pull out the camshaft 1 (rear) (T) to the
measure the thrust clearance "b" of the camshaft front. (The camshaft thrust base (U) need not be
in the axial direction with a thickness gauge, and removed.)
record the clearance.
When drawing out the camshaft, use a wood-
Standard Limit for
clearance replacement en piece to avoid damaging the cam surface
(mm) (mm) and the inner surface of the camshaft bearing.
Thrust clearance b＝ 0.15 ~ 0.40 0.50
M. Remove the camshaft thrust bearing metal (V)
Govenor from the camshaft thrust base (U) at the rear of
driving gear
M. camshaft.
N. Remove the cam gear shaft (D) and the cam
gear (C) from the removed camshaft 2 (front) (S).

Before removing the cam gear, confirm the

positions of the matchmarks (marked lines) on
the camshaft and the cam gear.
(If necessary, put matchmarks on other posi-
tions.) When reassembling, be sure to align
the marks as before disassembling. If the
Camshaft metal Camshaft thrust
base (U) metal(V) cam gear is dislocated, the engine perform-
Camshaft Thrust Clearanca ance will change.
H. Undo the wire rings, loosen the bolts, and ( :8-2.6 "Inspection of Fuel Oil Injection Timing")
remove the tachometer driving joint and the gov-
Camshaft
ernor driving gear. connecting nut (R)
I. Pull the camshaft to the front side so the bear-
ings will roughly be at the center position of (b)

inspection window.
J. Loosen and remove the nuts (R) of the
camshaft connecting bolts (Q) that tighten the
parting faces at the center of the camshaft by
Torque wrench
using the special ring head 17-12.7(b) through
the window on the camshaft cover.
This work is unnecessary when space enough to Dividing the Camshaft
extract the whole camshaft is kept in front of the engine.

Camshaft 1 (T)
One of the 12 connecting bolts is a reamer
bolt. Before dividing the camshaft, put match-
marks at the tip of any bolt and the mating
position on the side of the flange of the Matchmarks (Mark
before disassembling.)
camshaft 1 (rear) to facilitate reassembly.

K. After making sure that the camshaft has been Camshaft

drawn out without problems, pull out the camshaft connecting bolt (Q)

2 (front) (S) with the cam gear (C) and the cam Matchmarks on Camshaft and
gear shaft (D) to the front of the engine. Connecting Bolt

DE-18 A 12-03
 CHAPTER
Timing Gears and Camshaft 8
ITEM
Camshaft: Inspection and Maintenance DE-18 2.4

8-2.4 Inspection and Maintenance of D. Measure the clearance between each bearing
Camshaft sliding area on the camshaft and the relevant
bearing.
The parts handled in this section must con-
form to NOx Technical Code. When replacing (1) Measure the outer diameter of each bearing
any of these parts, use the part with the identi- sliding area on the camshaft with an outside
fication mark. micrometer.
( :0-3 "Engine Conforming to NOx Technical Code") (2) When the bearings are mounted on the
engine frame, measure the inner diameter of
A. Check for pitching and peeling on the cam sur- each bearing with a cylinder gauge.
faces.
(3) Calculate the clearance based on the meas-
urement results. If the clearance exceeds the
When pitching, peeling or wear on the cam limit for replacement, replace the bearing with a
surfaces is heavy, it is necessary to replace new one.
the camshaft with a new one.
When the cam surfaces have only minor Nominal Standard Limit for
size clearance replacement
defects, the service life can be extended to a (mm) (mm) (mm)
certain degree by surface treatment. Consult A=φ143 a=0.065 ~ 0.185 0.25
our service department. B=φ58 b=0.02 ~ 0.12 0.20

B. Check for flaws and contact on the bearing slid-

ing areas of the camshaft. If flaws are found, cor-
8
rect them with an oil whetstone.
C. Check for wear, flaws and peeling on the bear-
ing inner surfaces.

DE-18 Z 12-01
CHAPTER
8 Timing Gears and Camshaft
ITEM

2.4 DE-18 Camshaft: Inspection and Maintenance

<Procedure for replacing the camshaft bearing>

(1) Fit the camshaft bearing extracting tools (c), Standard Limit for
clearance replacement
slowly screw the bolt (c)-(3), taking care not to (mm) (mm)
damage the bearing housing on the engine Thrust clearance b＝ 0.15 ~ 0.40 0.50
frame, and remove the bearing.
(2) Set a new bearing metal in the way the oil
passage is secured through frame and bearing, (c)-(2) (c)-(1)
and fit the bearing into the engine frame by
cold-fitting.
The cold-fitting procedure is the same as that
for the valve guide.
( : 3-1.5 B. "Replacement of valve guide
and stem seal")
E. Check for wear, flaws and peeling on the
camshaft thrust bearingsmetal (V).
(1) When defects are minor, correct them with an
oil whetstone. (c)-(3)
(2) When the thrust bearings worn heavily and
the thrust clearance "b" exceeds the limit for
replacement, replace the thrust bearings metal
(V) with new ones.
Camshaft bearing
( : 8-2.3 G. "Thrust Clearance of Camshaft")

Extracting the Camshaft Bearing

DE-18 Z 12-01
 CHAPTER
Timing Gears and Camshaft 8
ITEM
Camshaft: Reassembly DE-18 2.5

8-2.5 Reassembly of Camshaft D. Apply lubricating oil to the sliding surfaces of

the camshaft thrust bearings (V) (on the side
Reassemble the camshaft in accordance with
where ruffled oil grooves are provided), and fit the
the reverse procedure for disassembling.
thrust bearings before and after the camshaft
( : 8-2.3 "Disassembly of Camshaft")
thrust base (U) based on the knock pins with their
sliding surfaces outside.
Before reassembling the camshaft, check the E. After making sure that the camshaft surface is
identification mark to confirm that the free from dirt and foreign matter, apply lubricating
camshaft is a genuine part. Particularly when oil to the outer periphery of the bearing and the
the camshaft has been replaced with a new inner surface of the camshaft bearing.
one, be sure to check the mark. F. Slowly insert the camshaft 1 (rear) (T) into the
camshaft hole in the engine frame from the front
A. Clean the removed parts, such as the camshaft, of the engine with the connecting side on this
with wash oil. side.
B. Clean the surfaces of the camshaft 1 (rear) (T) G. Then, slowly insert the camshaft 2 (front) (S)
in contact with the connecting nuts, and check for provided with the cam gear (C) and the cam gear
bruises and peeling on the surfaces. If any shaft (D) into the cam shaft hole in the engine
defects are found, correct them. frame, setting the connecting side inward.
C. Attach the cleaned cam gear (C) and the cam
gear shaft (D) to the front end of the camshaft 2
(front) (S), and, after applying lubricant When inserting the camshaft, take care not to
8
(MOLYKOTE 1000 SPRAY) to the threaded por- damage the cam surfaces and the inner sur-
tions and bearing surfaces of the cam gear bolts faces of the camshaft bearings.
(P), tighten them on diagonal lines to the speci-
fied torque.
( : 8-1.6 "Reassembly of Cam Gear")

Specified torque: 150 N･m

Align the matchmarks (marked lines) the posi-

tion before disassembling on the camshaft
and the cam gear. (Or align the matchmarks
given before disassembling.)
( : 8-2.6 "Inspection of Fuel Oil Injection
Timing")

DE-18 Z 12-01
CHAPTER
8 Timing Gears and Camshaft
ITEM

2.5 DE-18 Camshaft: Reassembly

H. Connect the camshafts by aligning the match- P. Mount the governor case, governor drive unit,
marks (on the camshaft 1 and the connecting governor and related parts and pipes at the rear
bolt) given before the camshaft was disassem- of the engine.
bled, and fit surely the fitting parts. Q. Mount the starting rotary valve, the tachometer
drive unit and related parts, and the pipes.
( : 11-5 "Reassembly of Governor Drive
One of the 12 connecting bolts is a reamer Unit")
bolt. Fit the bolt based on the matchmark R. Mount the gear case on the front of the engine,
given before the crankshaft was disassem- and attach the auxiliary devices to the gear case.
bled. ( : 8-1.7 "Reassembly of Idle Gear")

I. After applying lubricant (MOLYKOTE 1000

SPRAY) to the bearing surfaces and threaded
portions of the camshaft connecting nuts (R),
tighten the connecting nuts on each diagonal line
to the specified torque using the special ring head
17-12.7(b) and a torque wrench through the win-
dow on the camshaft cover.

Specified torque: 90 N･m

J. Mount the governor driving gear and the

tachometer driving joint, and fit wire rings to pre-
vent turn of the bolts.
K. Measure the thrust clearance "b" of the
camshaft with a thickness gauge, and make sure
that the clearance is within the specified range.

Specified thrust clearance b= 0.15 ~ 0.40 mm

L. Mount the valve operating device.

( : 10-5 "Reassembly of Valve Operating
Device")
M. Mount the fuel oil injection pump, and connect
the fuel oil high-pressure flange and the fuel oil
high-pressure block with bolts.
( : 9-5 "Mounting of Fuel Oil Injection
Pump")
N. Insert the push rods, mount the rocker arm
device, and fit the cylinder head cover.
( : 3-3.5 "Reassembly of Rocker Arm
Device")
O. Fit the camshaft cover.

DE-18 Z 12-01
 CHAPTER
Timing Gears and Camshaft 8
ITEM
Camshaft:
Inspection of Fuel Oil Injection Timing DE-18 2.6

8-2.6 Inspection of Fuel Oil Injection

Timing
Marked line
Camshaft 2
The items handled in this section must con- (camshaft 2
outer periphery)
form to the engine settings specified in NOx
Technical Code. Do not make any change to
bring the settings out of specification.
( :0-3 "Engine Conforming to NOx Technical Code")

When the cam gear or the camshaft has been R

disassembled or replaced, inspect the timing in
accordance with the following procedure.

A. Remove the cam gear cover on the side of the Cam gear Marked line (cam
shaft gear side) View from "R"
gear case, and the camshaft cover on the side of
the engine frame. Cam gear (boss)
B. Check that the marked line before disassem-
Cam gear
bling on the outer periphery of the camshaft 2 is
aligned with the marked line on the cam gear Checking the Matchmarks on the
Camshaft and the Cam Gear
boss (at the front end). (Or check that the match-
marks given before disassembling are aligned.)
8
( : 8-1.4 "Disassembly of Cam Gear") Delivery beginning
position indicating Marked line on
( : 8-1.6 "Reassembly of Cam Gear") line "X" tappet "Y"

C. Slowly turn the crankshaft, and read the deliv-

ery beginning angle on the scale on the flywheel
when the delivery beginning position indicating
line "X" on the fuel oil injection pump housing
aligns with the marked line "Y" on the fuel oil
injection pump tappet.
Pump housing
D. Make sure that the angle is identical to the
delivery beginning angle indicated on the adjust-
Mounting position
ment plate on the engine frame side cover. indicating line "Z"

E. Check all cylinders in the same manner.

Camshaft
When only certain cylinders are defective,
inspect the fuel oil injection pumps of the cylin-
ders.
Delivery Beginning Position
( : 9-5 "Mounting of Fuel Oil Injection
Pump")
F. Fit the cam gear cover and the camshaft cover.

DE-18 Z 12-01
CHAPTER
9 Fuel Oil Injection Device
ITEM
General of Structure/Replacement Consumable Parts,
1, 2 DE-18 Tools and Measuring Instruments

9.Fuel Oil Injection Device

9-1 General of Structure 9-2 Replacement Consumable Parts,
The fuel oil injection pump (A) is a Bosch type high- Tools and Measuring Instruments
pressure single-cylinder pump with an integral tappet. A. Replacement consumable parts
The plunger is lubricated with lubricating oil. Replace the following parts with new ones.

High-pressure fuel oil that is fed under pressure ( ："Parts List")

by the plunger is sent to the forged steel fuel oil
① Gasket (camshaft cover) 2-2 No.6
high-pressure block (C) from the outlet on the side
of the upper part of the pump through the fuel ② O-rings (high-pressure block)
high-pressure joint (B) having spherical end faces. 2-24.1 No.11, 14, 502, 505
Then, the fuel oil is fed into the inlet connector (D)
③ Circular packing (leak pipe) 3-2.2 No.502, 503
of the fuel oil injection valve on the side of the
cylinder head through the drilled hole in the fuel oil ④ Circular packing (plunger lubricating oil pipe)
high-pressure block. 3-3.1.2 No.512, 513
B. Tools and measuring instruments
If high-pressure fuel oil leaks from any joint on (a) General tools and measuring instruments
the route from the fuel injection pump to the fuel oil ( ： 2-2 )
injection valve, leak oil is fed into the leakage oil
tank through the drilled hole of the fuel oil high-
pressure block (C) and pipe of fuel-leak collection.
Then, the level switch detects the trouble.
( ：5-4.2 "Inspection and Maintenance of
Fuel Oil Injection Valve" in "Operation
Manual")

Fuel oil injection pump assembly: 17.5 kg

Assembly direction distinguishing slit

DE-18 A 12-05
 CHAPTER
Fuel Oil Injection Device 9
ITEM
Disassembly of Fuel Oil Injection Pump DE-18 3

9-3 Disassembly of Fuel Oil Injection pump with the fuel shut-down air pipe (N), and
Pump remove them from the engine.
J. Remove the fuel injection pump lifting tool (eye-
A. Remove the camshaft cover on the engine bolts and nuts).
frame side.
B. Turn the engine to position the tappet roller of
The fuel oil injection pump for each cylinder
the fuel oil injection pump (A) on the fuel oil cam
base circle. has been adjusted to ensure appropriate
C. Remove the plunger lubricating oil main-pipe injection timing. When disassembling, put an
inlet pipe (L) and each cylinder fuel shut-down air identification mark on each pump as stated
main-pipe inlet pipe (M). below. Take care not to mount the pump on
D. Loosen the bolts (K). Then remove the fuel oil main another cylinder.
pipe (H) by loosening all of the mounting bolts (I).
1.Mark the engine number and the cylinder
E. Remove the fuel oil high-pressure block (C), the
number on the fuel oil injection pump hous-
leak oil pipe, the leak oil cover and the fuel oil
high-pressure joint (B). ing.
F. Remove the fuel injection pump leak pipe (F), the 2.Attach a tag to a set of the mounting surface
plunger lubricating oil pipe (G), and the rack link pin (E). shims (for adjusting the base circle) for
G. Use a socket and an extension bar to remove each cylinder, and note the engine number
the pump fastening nut (J). and the cylinder number on it.
H. Loosen the cap nut (P) on the fuel shut-down
air pipe (N) (until the cap nut completely comes (O)
off the screw).
(N)
(Removing the fuel injection pump on the #1 cylin-
der, loosen the swivel joint bolt (O), and remove 9
the fuel shut-down air pipe (N).)
I. Attach the fuel injection pump lifting tool (eye-
(G)
bolts and nuts) on top of the fuel injection pump.
By using a wire rope, lift up the fuel injection
(P)
Eyebolts and nuts (M12)

Fuel injection pump (B)

(L) (M) (C)

(H)

(F)

(J)

(E)

(K) (H)
(I)

DE-18 A 12-05
CHAPTER
9 Fuel Oil Injection Device
ITEM

4.1 DE-18 Fuel Oil Injection Pump:Disassembly

9-4 Fuel Oil Injection Pump (9) Remove the deflector .

9-4.1 Disassembly of fuel oil injection

pump 1) Use the plunger and the plunger barrel as
one pair. The gap between these two compo-
nents has been adjusted. You cannot combine
The fuel oil injection pump is a precision part.
or use any two components coming from dif-
Even fine foreign particles may cause sticking
ferent pairs.
or damage of the plunger and delivery valve. 2) When disassembling components, classify
When disassembling and reassembling the them into groups depending on the pumps
pump, take utmost care that no foreign parti- from which they come. Be sure not to mix the
cles enter the pump. components of a cylinder with the components
of another cylinder.
(1) Attach the fuel oil injection pump on a vice
with the tappet  upward.
(2) Use a gear puller or the like to keep on push- m
ing the tappet and to remove the holding pin 
with a bolt (M6x20).
p
n Delivery
valve assy.
Use caution not to let the tappet roller pop out
with the force of the spring. q c Plunger
barrel
(3) Remove the components of the tappet
assembly in the following order: plate ,
b Plunger
spring seat (lower) , spring , plunger ,
and spring seat (upper) . a Pump body
(4) Remove the control sleeve  and the control
rack .
(5) Release the injection pump from the vise. l
Turn the pump upside down and fasten it with
the vise.
(6) Remove the mounting bolt . Remove the k
delivery valve assembly .

j
Do not disassemble the delivery valve. When
it is necessary to replace the delivery valve, g
replace it as a whole with a new assembly. h

(7) Remove the positioning screw . e

f
(8) Turn the injection pump upside down again.
Keep holding the plunger barrel  by hand, d Tappet assy.
and remove it from the main body.
If the plunger barrel does not come out, place
a piece of wood on the opposite side of the F.O. Injection Pump
plunger barrel. Tap the piece of wood with a
hammer to push out the plunger barrel.

DE-18 A 12-03
 CHAPTER
Fuel Oil Injection Device 9
ITEM
Fuel Oil Injection Pump:Inspection and Maintenance DE-18 4.2

9-4.2 Inspection and Maintenance of

Fuel Oil Injection Pump Plunger barrel

The parts handled in this section must con-

form to NOx Technical Code. When replacing
any of these parts, use the part with the
identification mark.
( ：0-3 "Engine Conforming to NOx
Technical Code")

(1) Clean the removed parts with clean wash oil, Deflector
and blow air over them.
Plunger
(2) Inspect the plunger, plunger barrel, and
deflector to see if any corrosion is found.
Plunger, Barrel, and Deflector
Replace the component with a new one if it is
corroded too much.

Replace the plunger assembly, delivery valve

assembly and plunger spring every 16,000~
24,000 hours (4~5 years) with new ones even
if they do not show any abnormalities.
9
(3) Measure the inner diameter of the tappet, and
calculate the tappet clearance.

Nominal size Standard clearance Limit for replacement

(mm) (mm) (mm)
C=φ72 c=0.03~0.08 0.25
B

(4) Fit a dial gauge onto the tappet roller surface,

and measure the bearing clearance while mov-
b

ing the roller up and down.

C c
Nominal size Standard clearance Limit for replacement
(mm) (mm) (mm)
Tappet Diameter Clearance and Roller
B=φ28 b=0.05~0.08 0.20
Bearing Clearance

DE-18 Z 12-01
CHAPTER
9 Fuel Oil Injection Device
ITEM

4.3 DE-18 Fuel Oil Injection Pump:Reassembly

9-4.3 Reassembly of Fuel Oil Injection

Pump

When reassembling the fuel oil injection

pump, handle its parts without using gloves to
prevent adhesion of foreign particles and dust.

Reassemble the fuel injection pump in proce-

dure for reverse order from its disassembly.

(1) Hold the pump body  with its delivery valve

side upwards. Fasten the pump body with a
vise.
(2) Apply some grease on the new O-ring and
new backup ring. Attach them on the barrel .
(3) Align the barrel positioning bolt hole on the
pump body with the hole on the barrel. Insert
the barrel in the pump body.
(4) Mount the barrel positioning bolt .
(5) Align the dowel of the delivery valve assem-
bly  in place. Mount the assembly on the
pump body.
(6) Apply anti-abrasion agent (Molykote U Paste)
on the thread and seating surface of each of
the bolts . Tighten the bolts evenly in the Control sleeve
diagonal order with the prescribed torque.
Control rack

Specified torque: 150 N•m

30 20 10 0
(7) Release the pump body from the vise. Turn the
pump body upside down and fasten it with the
vise again. Assembly of Control Rack and Control Sleeve
(8) Apply grease to the teeth on the gear of the ( Position of Rack 0 )
( Viewed from Pump Tappet Roller Side )
control rack  and the inner surface of the con-
trol sleeve . Align the beginnings of the teeth
on the rack and sleeve (in the direction of 0 mm
on the rack) and assemble them.

Use caution because the normal operation is

not possible if the teeth on the rack and the
sleeve do not mesh correctly.

DE-18 Z 12-01
 CHAPTER
Fuel Oil Injection Device 9
ITEM
Fuel Oil Injection Pump:Reassembly DE-18 4.3

(9) Mount or attach the spring seat (upper) ,

plunger , spring , spring seat (lower) , Z mark
plate , and tappet assembly  in this order.

Z
To mount the plunger, the "Z" mark in the
lower part must be in the opposite direction to
the rack.
(10) Use a gear puller or the like to keep pushing
the tappet and to mount the holding pin . Plunger Matchmark

Use caution not to damage the tappet or roller

during reassembly.

(11) Mount the deflector .

Tightening torque: 65 N•m

(12) When completing the reassembly, confirm

that the rack moves smoothly, and that the
point of "0" is correct.

DE-18 Z 12-01
CHAPTER
9 Fuel Oil Injection Device
ITEM

5 DE-18 Mounting of Fuel Oil Injection Pump

9-5 Mounting of Fuel Oil Injection

Pump If you have removed the inlet connector, pay
(1) Confirm that the fuel oil cam is in the position attention to the mounting direction distinguish-
of the base circle. ing slit.
(2) Keep the fuel injection pump lifted by the
chain block. Insert the fuel shut-up air pipe (N) (6) Mount the rack pin and adjust the amount of
into the main pipe. Then lower the fuel injection the rack position.
pump onto the frame and tighten the nut with ( :5-3.1 "Adjustment of Amount of Fuel Oil
the prescribed torque. Injection Pump Rack" in Operation Manual)
(7) Mount all pipes.
(8) Check the the fuel oil injection timing.
Specified torque: 100 N•m
( :8-2.6 "Inspection of Fuel Oil Injection Timing")
(3) Check the mounting height of the fuel oil injec- (9) When the maintenance work is completed,
tion pump. provide fuel oil and bleed by loosening the air
a) Check that the tappet's slit aligns with the vent screw.
pump body's baseline slit when the tappet ( : [Operation Manual] 4-2.2 E "Priming with
roller is on the base circle of the fuel oil cam. Fuel Oil and Exhausting Air")
b) Use shims for adjustment if it is necessary
to adjust the mounting height.

Shim thickness ( ："Parts List")

0.5 mm (standard) 2-23 No.291
0.1 mm 2-23 No.292
0.3 mm 2-23 No.293
Insert
(4) Apply grease on the O-ring. Attach the O-ring
on the leak oil cover. Mount them on the fuel oil (N)
Main pipe
injection pump.
(5) Mount the fuel oil high-pressure block. Tighten
the bolts (L) with the specified torque. Engine
frame
Specified torque: 40 N•m
Mounting of Fuel Injection Pump

Shim (Q)
Tappet slit

Assembling position mark line

Mounting Hight
of F.O. Injection Pump

DE-18 A 12-05
 CHAPTER
Fuel Oil Injection Device 9
ITEM
MEMO DE-18

9
CHAPTER
10 Valve Operating Device
ITEM
General of Structure/Replacement Consumable Parts,
1, 2, 3 DE-18 Tools and Measuring Instruments/Disassembly

10.Valve Operating Device 10-3 Disassembly of Valve Operating

10-1 General of Structure Device

This engine employs a swing-arm type valve A. Remove the cylinder head cover, and remove
operating device having a roller follower. The the rocker arm device and the push rods.
device is common to the intake and exhaust B. Remove the camshaft cover on the engine
valves. frame side.
A bearing bush is press-fitted into the tappet C. Remove the swing arm shaft bolt (A), and dis-
roller, which revolves on the tappet roller pin that is mantle the swing arm assembly.
press-fitted into the swing arm. Before dismantling the swing arm assembly,
The swing arm fulcrum and the tappet roller mark the engine number and cylinder number
bearing are lubricated with oil supplied from the with a marker.
drilled hole in the engine frame through the swing D. Remove the snap ring (B), and remove the
swing arms (C) from the swing arm shaft (D).
arm shaft fixing bolt and the drilled holes in the
shaft and the arm.
A ring knock has been press-fitted into the shaft
to ensure the parallelism between the tappet roller
and cam contact surfaces.

Swing arm assembly: 9.2 kg

10-2 Replacement Consumable Parts,

Tools and Measuring Instruments
A. Replacement consumable parts
① Seal (head cover) 2-15 No.2
② Gaskets (camshaft cover) 2-2 No.6
B. Tools and measuring instruments
(a) General tools and measuring instruments

( ：2-2 ) (H) (A)

(G) (F) (E) (C)

(B)

(D)

Swing Arm Assembly

DE-18 Z 12-01
 CHAPTER
Valve Operating Device 10
ITEM
Inspection and Maintenance of Valve Operating Device DE-18 4

10-4 Inspection and Maintenance of

Valve Operating Device
Concavity in fitting
A. Clean the parts with wash oil.
(C)

Each part has a lubricating hole. Take care

that dust and foreign matter do not enter the
(D)
hole.

B. Check for flaws and abnormal contact on the

sliding surfaces of the swing arm shaft (D) and
the swing arms (C).
C. Check for flaws and abnormal contact on the
outer periphery of the tappet roller (E). Inspecting the Swing Arm Shaft and
D. Check for flaws and abnormal contact on the the Swing Arm
concavity in each swing arm (C) fitting (surface in
contact with the push rod).
E. Put a dial gauge on the tappet roller (E), and
measure the clearance between the tappet roller
pin (F) and the tappet roller bush (G) while mov-
（Ｅ）
ing the tappet roller upward and downward.

Nominal size Standard clearance Limit for replacement

(mm) (mm) (mm)
B=φ22 b=0.07~0.13 0.2 10

As the clearance increases, the valve end

clearance becomes larger, and the valve
opening and closing timing changes, resulting
in degradation of the engine performance. B b
If the measured clearance exceeds the limit
for replacement, replace the swing arm (with
the roller) with a new one.

(E) (F) (G)

Measuring the Clearance

of the Tappet Roller Bush

DE-18 Z 12-01
CHAPTER
10 Valve Operating Device
ITEM

5 DE-18 Reassembly of Valve Operating Device

10-5 Reassembly of Valve Operating

Device

A. Align the lubricating hole in the swing arm (C)

with the lubricating groove in the swing arm shaft
(D), and fit the swing arm onto the swing arm
shaft.

Before reassembling, check the cylinder num-

ber to avoiding fitting parts of another cylinder.

B. Fit the snap ring (B).

C. Mount the swing arm assembly on the engine
frame, fitting the ring knock (H).

The swing arm shaft has identification marks

"L" and "R." Check that "L" is on the left and
"R" is on the right.
(A) (C) (B) (D)

D. Apply lubricant (MOLYKOTE 1000 SPRAY) to

the threaded portions and bearing surfaces of the
swing arm shaft bolts (A), and tighten the bolts to
the specified torque.

Specified torque: 60 N・m

Fitting the Swing Arm Shaft

DE-18 Z 12-01
 CHAPTER
Valve Operating Device 10
ITEM
MEMO DE-18

10
CHAPTER
11 Governor Drive Unit
ITEM
General of Structure/Replacement Consumable Parts,
1, 2 DE-18 Tools and Measuring Instruments

11.Governor Drive Unit 11-2 Replacement Consumable Parts,

11-1 General of Structure Tools and Measuring Instruments
A. Replacement consumable parts
The governor is a mechanical-hydraulic gover- Replace the following parts with new ones.
nor or an electro-hydraulic governor (UG-25+).
The governor controls, depending on the variance <For governor RHD6>
of the load, the amount of the rack movement with
( ："Parts List")
the common rod, which in turn controls the amount
① Circular packing (tachometer drive unit)
of fuel oil injection.
3-1.4 No.502
The governor drive unit is located at the rear of
② Circular packing (governor lubricating pipe)
the engine. The unit consists of a pair of bevel 3-3.1.2 No.512
gears that are driven by the camshaft. The unit
③ Wire 2-26.1 No.513
drives the governor through the spline coupling.
④ Bearing 2-26.1 No.518
The governor bearing is positioned with a pin in
the governor gear case after the bevel gear back- <For governors UG10 and UG-25+>
lash was adjusted in the factory. In the normal
( ："Parts List")
inspection and maintenance, the backlash does
① Circular packing (tachometer drive unit)
not need to be adjusted.
3-1.4 No.502
The fitting surfaces of the governor gear case
② Circular packing (governor lubricating pipe)
and the engine frame are sealed with an O-ring,
3-3.1.2 No.512
and the fitting surfaces between the governor gear
case and the governor bearing and between the ③ Governor mounting packing 2-26.2 No.27
governor bearing and the governor base (RHD) ④ Split pin 2-26.2 No.512
are sealed with liquid sealant. ⑤ Wire 2-26.2 No.513
The following three governors are available to ⑥ Bearing 2-26.2 No.518
this engine. B. Tools and measuring instruments
As for the handling of the governor, refer to the (a) General tools and measuring instruments
separate manual. ( ： 2-2 )
( ："Governor Instruction Manual")

<RHD6: Standard>
Governor ：8 kg
Governor drive unit assembly ：23 kg

<UG10: Optional>
Governor ：20 kg
Governor drive unit assembly ：23 kg

<UG-25+: Optional>
Governor ：28 kg
Governor drive unit assembly ：23 kg

DE-18 Z 12-01
 CHAPTER
Governor Drive Unit 11
ITEM
Disassembly of Governor Drive Unit DE-18 3

11-3 Disassembly of Governor Drive Governor lever (A)

Link pin (B)
Unit
The basic structure of the governor drive unit is
the same irrespective of the governor type. This
section explains how to disassemble the governor
Common rod
drive unit for RHD6.
Governor
A. Remove the governor lever (A) and the link pin
(B) connecting to the governor.
B. Disconnect the governor lubricating pipe. Terminal
shaft
C. Remove the governor mounting nuts (C), and
dismantle the governor.
D. Remove the governor base mounting bolt (D),
Common rod lever
and remove the governor base (E).
Governor Link
E. Check by touching the backlash between the
governor driving gear (F) and the governor driven
gear (G).

Standard clearance Limit for replacement

(mm) (mm)
Backlash 0.08 ~ 0.13 0.6
F. Dismantle the governor gear (H) assembly.
The spline coupling (J), governor driven gear
(G), bearing (K) and distance piece (L) can be
drawn out simultaneously because they are fitted
on the governor bearing.
G. Draw out the taper pin (M), and remove the
spline coupling (J).
11
H. Remove the nut (N), and remove the washer.
I. Remove the governor driven gear (G), and
remove the bearing (K) and the distance piece
(L).
J.If necessary, remove the governor gear case (P)
and the governor driving gear (F).
( ：8-2.3 "Disassembly of Camshaft")
(1) After remove the tachometer driving cable (T),
remove the starting air rotary valve (V).
(2) Remove the governor gear case mounting bolt
(Q), and remove the governor gear case (P).
(3) Undo the wire rings, loosen the bolts (R), and
remove the tachometer driving joint (S) and the
governor driving gear (F).

DE-18 Z 12-01
CHAPTER
11 Governor Drive Unit
ITEM
Inspection and Maintenance of Governor Drive Unit
4, 5 DE-18 Reassembly of Governor Drive Unit

11-4 Inspection and Maintenance of

Governor Drive Unit
A. Clean the disassembled parts with wash oil.
B. Remove completely liquid sealant, taking care
not to damage the mating surfaces.
C. Check for abnormal wear and flaws on the
teeth of the gears.
D. Check for fretting in the bearing fitting area on
the governor driven gear (G).
E. Check for abnormal wear and flaws on the teeth
of the spline coupling (J).

11-5 Reassembly of Governor Drive

Unit
A. Reassemble the governor drive unit assembly
in accordance with the reverse procedure fitting
disassembling.
(1) Replace the O-rings and bearings with new
ones. Apply grease to the new parts before fit-
ting them.
(2) Apply liquid sealant thin and uniformly to the
surfaces of the governor gear case and the
governor bearing and the surfaces of the gov-
ernor bearing and the governor base before
reassembling them.
B. After reassembling, perform the following
checks.
(1) Before mounting the governor bearing assem-
bly in the governor gear case, check that the
governor driven gear turns smoothly.
(2) After mounting the governor bearing assembly
in the governor gear case based on the pin,
check that the backlash is normal by touching.

DE-18 Z 12-01
 CHAPTER
Governor Drive Unit 11
ITEM
MEMO DE-18

11
 CHAPTER
12 Intake and Exhaust Device
ITEM

1, 2 DE-18 General of Intake and Exhaust System/Turbocharger

12.Intake and Exhaust Device 12-2 Turbocharger

12-1 General of Intake and Exhaust
The parts handled in this section must con-
System
form to NOx Technical Code. When replacing
High-temperature and high-pressure exhaust any of these parts, use the part with the
gas discharged from the cylinder is fed into the tur- identification mark.
bocharger through the exhaust pipe, and part of ( ： 0-3 "Engine Conforming to NOx
the exhaust energy is transformed into intake pres- Technical Code")
sure and collected by the turbocharger.
For lubrication, the engine system oil is supplied
The high-temperature air compressed in the tur-
through the special filter. After lubricating the bear-
bocharger is cooled in the air cooler and fed into
ings, the oil is returned to the gear case.
the air intake duct in the engine frame.
For the handling, disassembly and maintenance
of the turbocharger, refer to the separate
instruction manual.

Turbocharger AT14：100 kg
MET18：140 kg
TPS48：129 kg

Air cooler The turbocharger is very hot just after the

Cooling
Exhaust air water bypass engine is stopped. Wait until it sufficiently
valve
cools down before dismantling it for inspection
and maintenance.
If it must be dismantled before it cools down,
wear safety gloves, and take care not to burn
your hands.
Turbocharger
Expansion joint Air pre-filter
Lubricating oil Cooling
water
Intake
air

Intake pipe
Exhaust pipe (integral with
engine frame)

Exhaust
gas

Cylinder head

From another cylinder To another

cylinder
Intake and Exhaust System

DE-18 A 16-05
 CHAPTER
Intake and Exhaust Device 12
ITEM
Air Cooler: General of Structure / Replacement
Consumable Parts, Tools and Measuring Instruments DE-18 3.1,3.2

12-3 Air Cooler 12-3.2 Replacement Consumable Parts,

12-3.1 General of Structure Tools and Measuring
Instruments
The air cooler is of a multi-fin tube box type and
mounted at the front end of the engine frame.
A. Replacement consumable parts
The air cooler has a two-stage cooling structure
Replace the following parts with new ones.
(cooling water flows only on the high-temperature
side at a low load, and flows on both sides at a ( :"Parts List")
high load), and controls the cooling water depend- ① Gasket (I/C inlet) 2-32.1 No.2
ing on the load with the aid of the cooling water
② Gasket (I/C outlet) 2-32.1 No.12
bypass valve.
③ Gasket (Compressor outlet) 2-32.1 No.7

Air cooler: 560 kg ④ O-ring (I/C outlet duct) 2-32.1 No.513

⑤ O-ring (I/C CW inlet/outlet) 3-4.1 No.516
⑥ Consumable parts in I/C ( ："Parts List")

B. Tools and measuring instruments

(a) General tools and measuring instruments
( ： 2-2)
(b) Guide bolts (optional) 10 pcs.
(c) Eyebolt M16
(d) Nylon brush
(e) Neutral detergent

12

DE-18 A 15-08
CHAPTER
12 Intake and Exhaust Device
ITEM
3.3 DE-18 Air Cooler: Removal

12-3.3 Removal of Air Cooler

When removing the air cooler mounting bolts,
The air cooler can be removed without remov-
do not loosen all the bolts at the same time. If
ing the turbocharger. If, however, it is difficult
you do so, the air cooler may fall off.
to lift the air cooler, remove the turbocharger
Replace one air cooler mounting bolt with one
first.
guide bolt at a time, and then go on to the
In addition,guide bolts are available as an
next bolt.
option.
While you do so, always keep tight the lifting
wire rope.
A. Remove the I/C inlet duct cover (A).
B. Remove the I/C inlet duct (B) and the bellows (C).
C. Remove the turbocharger mount base support Specified torque of guide bolts (F): 60 N•m
bracket (D).
D. Remove the pipes connected with the air cooler. G. Use the change block to keep supporting the air
E. Mount the four eyebolts M16 (E) in the top part cooler, and move the air cooler in the direction of
of the air cooler. Insert a wire into the eyebolts. the arrow along the guide bolts (F).
Hang the wire on a chain block. (Remove the air cooler with the air cooler outlet
duct mounted.)
H. When the air cooler comes off the guide bolts
Dropping the air cooler while lifting it can
(F), put the air cooler down in an appropriate
cause serious accidents. Screw in the eyebolt
place.
securely to the bearing surface, and strictly
obey the standard on the use of the wire rope.

F. Remove the air cooler mounting bolts. Mount

the guide bolts (F) in those bolt holes with the
specified torque (five bolts on each of the top and
the bottom, ten bolts in total).

DE-18 A 17-04
 CHAPTER
Intake and Exhaust Device 12
ITEM
Air Cooler: Removal / Inspection and Maintenance / Reassembly DE-18 3.3~3.5

12-3.4 Inspection and Maintenance of

Air Cooler

The parts handled in this section must con-

form to NOx Technical Code. When replacing
any of these parts, use the part with the
identification mark.
( ：0-3 "Engine Conforming to NOx
Technical Code")

A. Remove the water chamber covers on both

sides, and remove scale that is adhered to them.
B. Clean the inside of the cooling pipe with a nylon
brush. After brushing, clean the inside with fresh
water.
C. Remove dirt from the parts on the air side blow-
ing compressed air onto them.
If they are heavily dirty, remove the water cham-
ber, and soak the plate fin tube assembly with the
casing in neutral detergent solution to remove
dirt.
After removing dirt, wash them with fresh water,
and completely dry them as soon as possible.

As for the details of the brand of detergent,

mixing ratio, heating conditions and treatment
after washing, consult or ask the detergent
12
manufacturer.

12-3.5 Reassembly of Air Cooler

Reassemble the air cooler in accordance with
the reverse procedure for disassembling.

DE-18 Z 12-01
CHAPTER
13 Starting Air System
ITEM

1 DE-18 General of Starting Air System

13.Starting Air System

13-1 General of Starting Air System
Compressed pilot air is used to start the engine.
When you open the air tank's stop valve and
push the start button, the solenoid valve is ener-
gized and control air actuates the starting valve.
Then, high-pressure air flows to the starting rotary
valve. The starting rotary valve distributes high-
pressure air into each of the cylinders that is in the
process of explosion according to the order of igni-
tions. As the starting valve in each cylinder opens,
the high-pressure air flows into the cylinder to start
the engine.
(( ：2-2.1 "Starting Air System" in
Operation Manual)

DE-18 A 12-03
 CHAPTER
Starting Air System 13
ITEM
Starting Valve: General of Structure / Replacement Consumable
Parts, Tools and Measuring Instruments / Disassembly DE-18 2.1~2.3

13-2 Starting Valve

The piston is compressing the spring. Use
13-2.1 General of Structure
caution and be careful not to let the spring pop
The starting valve controls the supply of the out while disassembling the starting valve.
starting high-pressure air to the engine at the time
of engine start. The valve is driven by the control- c) Remove the bolt. Remove the cylinder .
ling low-pressure air coming from the starting oper- d) Remove the holding ring . Remove the key
ation valve or the starting solenoid valve. receptacle  and the key .
e) Remove the piston . Pull out the valve rod .
Starting valve assembly: 12 kg
f ) Remove the split pin  and the crown nut .
Remove the valve receptacle , the valve ,
13-2.2 Replacement Consumable Parts, and the valve holder  from the valve rod.
Tools and Measuring g) Remove the union screw . Remove the
Instruments spring  and the check valve .
A. Replacement consumable parts
Replace the following parts with new ones.
( ："Parts List")
① Valve 3-1.2 No. A6
d a
② Split pin 3-1.2 No. A10, A25
③ O-ring 3-1.2 No. A502, A503, A504,
A505, A506, A507, A508 c
A509 e
④ Circular packing 3-1.2 No. B532 f
g
B. Tools and measuring instruments h
(a) General tools and measuring instruments

( ：2-2) j
i 13
13-2.3 Disassembly of Starting Valve k
l
(1) Remove the pipes on the starting air inlet/out-
q
let and the control air inlet/outlet. Remove the
p
starting valve assembly from the bracket.
(2) Disassemble the starting valve as follows:
a) Remove the mounting bolts. Remove the o

upper cover  and the lower cover .

b) Remove the split pin  and the nut .
Remove the piston  and the spring .
n m b

Starting Air Valve

DE-18 Z 12-01
CHAPTER
13 Starting Air System
ITEM
Starting Valve:
2.4,2.5 DE-18 Inspection and Maintenance / Reassembly

13-2.4 Inspection and Maintenance of 13-2.5 Reassembly of Starting Valve

Starting Valve
(1) Before assembly, apply some silicon grease
(1) Remove the rust with fine sandpaper if any thinly to the valve, O-ring, seating surface, and
rust is formed. sliding surface.
(2) Assemble the starting valve assembly by fol-
Be sure to drain the liquid from the equipment lowing the disassembling steps in the reverse
and the pipes at the time of routine mainte- order.
nance works to prevent rust generation.
(3) Mount the starting valve assembly on the
bracket. Mount the pipe.
(2) Wash the disassembled parts with clean oil.
Then, blow them to dry them.
Before mounting the pipe, brush it sufficiently
(3) Inspect the pistons  and  to see if any repeatedly to remove any foreign substances
abnormal contact area or any damage is found. and drained liquid. Use caution not to let any
(4) Inspect the seating surface of the valve  to sealing agent, or the like, come in contact dur-
see if any damage is found. ing assembly.

(5) Inspect the spring  to see if any damage is

found.

DE-18 Z 12-01
 CHAPTER
Starting Air System 13
ITEM
Starting Rotary Valve: General of Structure / Replacement Consumable
Parts, Tools and Measuring Instruments / Disassembly DE-18 3.1~3.3

13-3 Starting Rotary Valve 13-3.3 Disassembly of Starting Rotary

13-3.1 General of Structure Valve
(1) Remove the pipes of the starting air inlet and
The starting rotary valve distributes the pilot air
starting air outlet and the flexible cable.
(the air that drives the starting valve) to each of the
cylinders according to the order of explosions. The (2) Disassemble the starting rotary valve as fol-
valve is driven with the rotary valve coupling lows:
(Oldham's coupling) at the front end of the a) Remove the mounting bolt . Remove the
camshaft. rotary valve cover , the starting rotary valve
, and the rotary valve seat  at the same
Starting rotary valve assembly: 4.1 kg time.
b) Pull out the rotary valve coupling .
13-3.2 Replacement Consumable Parts, c) Remove the rotary valve cover . Pull out the
Tools and Measuring starting rotary valve  off the rotary valve seat .
Instruments d) Take out the O-rings  and  from the rotary
A. Replacement consumable parts valve seat .
Replace the following parts with new ones.

( ："Parts List")
① O-ring 3-1.3 No.502
② O-ring 3-1.3 No.503

B. Tools and measuring instruments

(a) General tools and measuring instruments

( ：2-2)

13

DE-18 Z 12-01
CHAPTER
13 Starting Air System
ITEM
Starting Rotary Valve:
3.4,3.5 DE-18 Inspection and Maintenance / Reassembly

13-3.4 Inspection and Maintenance of 13-3.5 Reassembly of Starting Rotary

Starting Rotary Valve Valve
(1) Wash the disassembled parts with clean oil. To assemble the starting rotary valve, follow the
Blow them to dry them. disassembling steps in the reverse order.
(2) Inspect the rotary valve bush  to see if any (1) Wash the starting rotary valve and the rotary
damage or abrasion is found. valve seat. Apply lubricating oil to the seating
Measure the shaft diameter of the rotary valve and surfaces and the shafts.
the inner diameter of the bush. Calculate the gap. (2) To insert the starting rotary valve in the rotary
valve seat, align the air hole in the starting
Nominal size Standard clearance Limit for replacement rotary valve with the hole of the rotary valve
(mm) (mm) (mm)
A = φ20 a = 0.01 ~ 0.10 0.20 seat having the number of the cylinder that is in
the process of explosion.
If the holes do not align with each other, turn
When the bush has large abrasion, lubricating the starting rotary valve by 180° to align
oil flows into the starting air pipe, making it dif- them.Then, insert the starting rotary valve in to
ficult to start the engine. In a case like this, rotary valve seat.
replace the busing with a new one.

(3) Inspect the seating parts of the starting rotary Use caution because the engine will not start
valve and the rotary valve seat to see if any if you assemble the rotary valve incorrectly.
deformation is made or if any scar is formed by
(3) Mount the pipe and the flexible cable.
any foreign substances caught in between.
If a scar formed by some foreign substance
reaches a pinhole of a cylinder, file the seat
surface to repair the scar. After this, slide the
components with each other to smoothen the
surface. If deformation is made, file it or scrape
it to remove the deformation.
(4) Inspect the meshing surfaces between the
starting rotary valve  and the rotary valve
coupling  and between the rotary valve cou-
pling and the rotary valve driving coupling to
see if any abrasion is found.

If the abrasion made on a meshing surface is

large, the open/close timing of the starting
valve delays, making it difficult to start the
engine.
In a case like this, replace the starting rotary
valve or the rotary valve coupling with a new
one.

DE-18 Z 12-01
 CHAPTER
Starting Air System 13
ITEM
Automatic Drain Valve / Switch Box and Handle Switch DE-18 4,5

13-4 Automatic Drain Valve 13-5 Switch Box and Handle Switch
To start the engine, you can select one of the
13-4.1 General of Structure
engine side start, the remote start, and the auto-
If lubricating oil flows to the rotary valve cover  matic start. To use the engine side start, turn the
during operation, the automatic drain valve drains switching switch to "LOCAL".
it into the leak oil tank. When, on the other hand, When you use the engine side start, you push
the engine is starting, starting high-pressure air the start push button. Doing so actuates the start-
forces the internal ball onto the seat to seal the ing solenoid valve (88V). Control air flows into the
passage. The automatic drain valve is installed starting valve to open the main valve. Thus, start-
halfway in the drainpipe close to the starting rotary ing air reaches the starting valve of the cylinder
valve. head.
13-4.2 Inspection and Maintenance of The handle switch, on the other hand, is a limit
Automatic Drain Valve switch which works in linkage with the operation
Listed below are some of the cases where you lever. When you turn the operation lever to "RUN",
must disassemble the drain valve for an inspection the switch turns on, forming a protection circuit.
of the internal parts. You may have to make cor-
rections and/or replace some parts, as necessary,
for example. Do not disassemble the starting operation
(1) Remove the pipe on the side of the automatic valve or the handle switch. If any of them does
drain valve outlet. If air seems to leak at the time not work correctly, replace it as a whole.
of start, the seat may be damaged or abraded.
(2) If draining seems not to work during operation,
the spring may be damaged.

The position of the ball

at the time when the
13
engine is in the staring
process

The inscripion
showing the flow
direction(arrowω)

DE-18 Z 12-01
CHAPTER
14 Fuel Oil System
ITEM

1 DE-18 General of Fuel Oil System

14.Fuel Oil System As for the inspection and maintenance of the fol-
lowing devices, refer to the separate sections or
14-1 General of Fuel Oil System
the separate instruction manuals.
When heavy fuel oil is used in this engine, it is ( : 2-2.2 "Fuel Oil System" in "Operation Manual")
particularly important to appropriately pre-treat the
・ Fuel oil filter
fuel oil before it reaches the engine inlet. This pre-
( : 5-4.3 "Cleaning Filters" in "Operation Manual")
treatment greatly affects the life of the fuel oil injec-
・ Pre-treatment facilities and devices
tion pump and other devices.
( : "Separate instruction manuals")
The system, facilities and equipment vary
depending on the grade of the applied oil.
Appropriately maintain, inspect and service them <Cautions in disassembling, maintaining
in accordance with their instruction manuals. and reassembling the fuel oil system>
1.The parts in the fuel injection system, such
When heavy fuel oil is used, the fuel oil heated
as the fuel pump and the injection valve, are
by the heater and pressurized by the oil feed pump
precision parts. They may cause noncon-
is fed to the fuel oil injection pump through the fil-
formities, such as seizure, if dirt and foreign
ter. Excess oil returns to the inlet of the oil feed
matter are mixed in oil.
pump through the relief valve for circulation.
When disassembling any device in the fuel
The major component parts provided on the
system, regardless of whether it is on the
engine include the fuel oil filter, the fuel oil relief
engine or separate from the engine, take
valve, and the fuel oil feed pump.
utmost care that dirt and foreign matter do
not enter the device and piping.
2.When overhauling the fuel system, be sure
to vent air after restoration. When discharg-
ing air, take care not to splash the oil.

Leakage waste
oil tank

DE-18 Z 12-01
 CHAPTER
Fuel Oil System 14
ITEM
Fuel Oil Relief Valve: General
/ Consumable Parts /
Disassembly / Inspection and Maintenance / Reassembly DE-18 2.1～2.5

14-2 Fuel Oil Relief Valve 14-2.3 Disassembly of Fuel Oil Relief
14-2.1 General of structure Valve
(1) Remove the connected pipe. Remove the
The fuel oil relief valve is installed at the end of
relief valve assembly.
the fuel oil outlet main pipe. The valve keeps the
(2) Disassemble the relief valve as follows:
pressure at the fuel oil injection pump inlet in a a) Remove the sleeve nut . Loosen the lock
proper range. Excess fuel oil is returned from the nut . Loosen the adjusting screw  com-
relief valve to the supply system. pletely.
(Before loosening the adjusting screw, mark
the tightening position of the adjusting screw,
The fuel oil pressure greatly depends on the or record the size so that the original position of
the screw can be found when reassembling.)
main pressure of the supply system and
b) Loosen the spring holder  and remove it.
varies according to the oil viscosity. c) Remove the spring seat , the spring , and
For heavy fuel oil, the valve has been adjust- the relief valve  from the relief valve body .
ed so that the pressure is within the blue mark g h f e d a
range on the pressure gauge at an appropri-
ate working viscosity. If the pressure becomes
out of the specified range during operation,
check that the fuel oil viscosity is appropriate
before disassembling and inspecting the fuel
b
oil relief valve
c

Fuel Oil Relieve Valve

When heavy fuel oil is used, the oil is heated
to a high temperature (100℃ or more). If the
14-2.4 Inspection and Maintenance of
Fuel Oil Relief Valve
oil is splashed on the skin, it may cause
burns. Take care not to splash the oil when (1) Clean the disassembled parts with clean wash
oil to remove sludge.
disassembling.
(2) Check for abnormal contact and flaws on the
relief valve. Check that the valve does not stick.
14-2.2 Replacement Consumable Parts, (3) Check for abnormal contact and flaws on the

Tools and Measuring

spring. 14
Instruments 14-2.5 Reassembly of Fuel Oil Relief
A. Replacement consumable parts Valve
Replace the following parts with new ones.
Reassemble the relief valve in the reverse order
( ："Parts List") of disassembly.
① Circular packing 3-2.6 No.502, 503, 506 (1) Set the adjusting screw at the position marked
B. Tools and measuring instruments before disassembling.
(a) General tools and measuring instruments (2) After reassembling, operate the engine, and
check that the pressure is within the blue mark
( ： 2-2 ) range. If the pressure is out of the range, adjust
the pressure with the adjusting screw.

DE-18 Z 12-01
CHAPTER
14 Fuel Oil System
ITEM
Fuel Oil Feed Pump: General of Structure / Replacement
3.1～3.3 DE-18 Consumable Parts, Tools and Measuring Instruments / Removal

14-3 Fuel Oil Feed Pump (Optional) 14-3.3 Removal of Fuel Oil Feed Pump
14-3.1 General of Structure (1) Disconnect the outlet and inlet piping of the
fuel oil feed pump.
The fuel oil feed pump is installed on the front
part of engine, and is driven from the auxiliary gear (2) Take out the coupling cover.
case via pump drive unit. (3) Remove the bolts and disconnect the fuel oil
The feed pump is a trochoid type, and the safety feed pump from the pump base, carefully
valve is incorporated into the upper cover. watching the positioning pin.
(4) Loosen the clamping screw of the coupling
Fuel oil feed pump assembly: 24 kg and remove the coupling.
(5) Take out the coupling key.

14-3.2 Replacement Consumable Parts,

Tools and Measuring
Instruments Coupling Cover Drive shaft

A. Replacement consumable parts Fuel oil feed pump

Key
Replace the following parts with the new ones
( : "Parts List")

<Fuel oil feed pump>

① O-ring 3-2.3 No.200-5, 200-6
② Packing 3-2.3 No.200-7
③ Bearing 3-2.3 No.200-1, 200-2
④ Oil seal 3-2.3 No.200-3, 200-4

<Fuel oil feed pump drive unit> Positioning pin Pump base
① Gasket 3-2.4 No.15
② Plain washer 3-2.4 No.504 Dismounting of Fuel Oil Feed Pump
③ Toothed lock washer 3-2.4 No.506, 507
④ Split pin 3-2.4 No.508
⑤ Oil seal 3-2.4 No.514
⑥ Bearing 3-2.4 No.512, 513

B. Implements and Measuring Instruments

(a)General tools and measuring instruments
( : 2-2)

DE-18 Z 12-01
 CHAPTER
Fuel Oil System 14
Fuel Oil Feed Pump: ITEM

Disassembly / Inspection and Maintenance DE-18 3.4,3.5

13 1 Safty valve 2 5 4 9 16
14-3.4 Disassembly of Fuel Oil Feed 6
Pump 32
7
(1) Before disassembling the fuel oil feed pump,
be minded to mark the matchmarks on the 8 10
pump body, the cover, and so on.
23
(2) Loosen the bolt . Remove the safety valve.
(3) Loosen the bolt 23 . Remove the top cover 
and the Φ3 ring 22 . 19
(4) Remove the snap ring . Remove the bolt , 3
22
the bolt 30 , and the nut 31 that are fastening
the bearing housing . 14
12
(5) Pull out the bearing housing , the oil seal ,
and the bearing  from the shaft ③.
30 29 18 21 20 31
(6) Pull out the pipe knock . Remove the barrel
② and the outer rotor ⑤. Fuel Oil Feed Pump
(7) Remove the inner rotor ④. Pull out the inner 15 17 33 20 27 34
key .
(8) Use a hammer and a brass rod to remove the
shaft key . Remove the angle plate 29 .
(9) Remove the snap ring . Use a hand press
or the like to pull out the shaft ③, the oil seal
, the bearing , and the collar 33 from the
main body ①. Pull out the seal case 27 , the oil
Oil Seal
seal , and the O-ring 34 as a set.
14-3.5 Inspection and Maintenance of
(10) Pull out the oil seal  and the bearing 
Fuel Oil Feed Pump
from the shaft ③.
(11) Remove the safety valve cap , loosen the (1) Clean all the disassembled parts with fresh
lock nut , and then loosen the adjusting washing oil, and blow air on them for drying.
screw . (2) Inspect the wearing conditions of the inner
Before loosening the adjusting screw, be mind-
rotor and outer rotor tooth surfaces, cavitation,
ed either to mark the tightening position of the
pitching, and so on.
adjusting screw, or to record the dimensions.
(12) Remove the spring holding nut . Take out
(3) Inspect the scratch and wearing conditions of
the outer periphery of outer rotor.
14
the spring holder , the spring , and the
safety valve . (4) Rotate the bearing, and check if it rotates
smoothly or if there is not any abnormal sound.
l n m o p q r t (5) Inspect if there is any abnormal dent on the
safety valve and safety valve spring, and also if
there is not any sticking.

Even in case that no particular fault is found in

s the bearing, be minded to replace it with a
new one at the time of the periodical inspec-
tion, which shall be performed every 12,000~
Fuel Oil Feed Pump Safty Valve 16,000 hours (4 years).

DE-18 A 12-03
CHAPTER
14 Fuel Oil System
ITEM
3.6 DE-18 Fuel Oil Feed Pump: Reassembly

14-3.6 Reassembly of Fuel Oil Feed 19 Snap ring 14 Bearing

Pump 17 Oil seal 33 Collar

㪧㫉㪼㫊㫊㩷㪽㫀㫋
Reassemble the pump in the reverse order of 20 Oil seal

disassembly. 34 O-ring
27 Seal case
(1) Use a hand press or the like to attach and
mount the set of the shaft ③, the seal case 27 ,
the oil seal , and the O-ring 34 . Then, attach 3 Shaft
and mount the collar 33 , the bearing , and
1 Body
the oil seal  in this order. Finally, attach the

39.5
snap ring .
(2) Mount the angle plate 29 . Use a hammer and
a brass rod to mount the shaft key .
(3) Mount the inner key  and the inner rotor ④. Assembly of Shafy & Bearing Module
(4) Assemble the outer rotor ⑤ and the O-ring 21
with the barrel ②, and mount them all. Attach

Press fit
10 Bearing
the pipe knock . 20 Oil seal
6 Bearing
hausing
5 Outer rotor
18 Dowel Pipe
Use caution not to catch the O-ring.
21 O-ring 4 Inner rotor

(5) Turn the assembly so that the rotor side faces

2 Body
upward. Align the bearing housing ⑥ with the
pipe knock , and mount it there. 9 Inner key
(6) Press and mount the oil seal  and the bear-
ing . Attach the snap ring .
(7) Fasten the bearing housing  on the main
body ① with the hexagon socket head cap
38.5

screw , the hexagon socket head cap screw

30 , and the nut 31 .

Tightening torque: 29.5 N•m Assembly of Rotor Side

(8) Attach the Φ3 ring 22 . Mount the top cover 

with the bolt 23 .

Tightening torque: 12.2 N•m

(9) Mount the safety valve assembly with the bolt ①.

Tightening torque: 12.2 N•m

DE-18 A 12-03
 CHAPTER
Fuel Oil System 14
ITEM
Fuel Oil Feed Pump Drive Unit:
Disassembly / Maintenance and Assembly DE-18 4.1,4.2

14-4 Fuel Oil Feed Pump Drive Unit 14-4.2 Maintenance and Assembly of
14-4.1 Disassembly of Fuel Oil Feed Fuel Oil Feed Pump Drive Unit
Pump Drive Unit (1) Inspect if there is any wear or pitching on the
tooth surface of the pump driving gear.
(1) Before starting to disassemble the drive unit,
take out the center cover of the auxiliary driving (2) Inspect if there is any distortion or crack in the
gear case, and measure the backlash of the coupling rubber.
pump driving gear. (3) Rotate the bearing, and inspect if it rotates
smoothly or if there is any abnormal sound.
Standard value Replacing limit (4) Reassemble the drive unit in the reverse order
(mm) (mm)
Backlash 0.3~0.5 0.8 of disassembly.
Apply lubricating agent (MOLYKOTE 1000
(2) Disconnect the fuel oil feed pump. spray) to the seating face and the threaded por-
( : 14-3.3 "Removal of Fuel Oil Feed tion of the pump driving gear tightening nut B ,
Pump") and tighten it with the specified torque.
(3) Remove the mounting nut. Remove the pump
drive bearing .
Specified torque: 215 N•m
(4) Remove the nut . Pull out the pump driving
gear  from the drive shaft .Remove the
key.
(5) Pull out the drive shaft from the pump drive If the oil seal is installed upside down, oil will
bearing. Remove the bearing  and the leak. Therefore, be careful not to mistake the
distance piece . assembling direction.
(6) Remove the oil seal .

G Bearing
side

Apply lithium grease

Fuel oil feed pump F E B
14

A D C

Fuel Oil Feed Pump Driving Device

DE-18 A 13-06
CHAPTER
15 Lubricating Oil System
ITEM
General of Lubricating Oil System /
1, 2.1 DE-18 Lubricating Oil Pump:General of Structure

15.Lubricating Oil System 15-2 Lubricating Oil Pump

15-1 General of Lubricating Oil System 15-2.1 General of Structure
The lubricating oil pump is installed at the front The lubricating oil pump is a gear type, and its
end of the engine. The lubricating oil is driven by five bearings are needle bearings. A safety valve is
the auxiliary machine driving gear installed on the installed in the pump cover.
crankshaft.
The lubricating oil cooler is installed on the Lubricating oil pump assembly: 33 kg
engine with the thermostat valve combined as a
set.
The lubricating oil filter is installed on the engine.
On its mount base, the lubricating oil relief valve is
integrated.
Another more accurate special filter is installed
for the lubricating oil of the fuel oil injection pump.

( :2-2.3 "Lubricating Oil System" in "Operation

Manual")
( :5-4.3 "Cleaning Filters" in "Operation
Manual")

DE-18 Z 12-01
 CHAPTER
Lubricating Oil System 15
ITEM
Lubricating Oil Pump: Replacement Consumable Parts,
Tools and Measuring Instruments / Disassembly DE-18 2.2,2.3

15-2.2 Replacement Consumable Parts, (2) Remove the pipes at the inlet and outlet.
Tools and Measuring (3) Remove the mounting nuts. Remove the lubri-
Instruments cating oil pump (assembly).
(4) Disassemble the lubricating oil pump as fol-
A. Replacement consumable parts lows:
Replace the following parts with new ones.
a) Before disassembling, write matchmakings
（ ："Parts List"） across the cover and the body and so forth.
① Needle bearing 3-3.6 No.19
b) Remove the split pin  and the crown nut .
② Oil seal 3-3.6 No.509
Remove the gear  and the key .
③ Split pin 3-3.6 No.504
④ Pump housing packing 3-3.6 No.20 c) Remove the bolts from the pump cover  and
⑤ Circular packing 3-3.6 No.512 remove it.
d) Pull out the pump gears  and  from the
B. Tools and measuring instruments
pump housing .
(a) General tools and measuring instruments
e) Remove the snap ring . Pull out the oil seal .
( ： 2-2 ) f) Remove the snap ring . Pull out the bearing .
g) Pull out the bearing  from the pump housing
15-2.3 Disassembly of Lubricating Oil and the pump cover.
Pump
h) Remove the safety valve spring holder . Pull
(1) Before removing the lubricating oil pump,
out the safety spring  and the safety valve .
remove the center cover of the auxiliary
machine gear case, and measure the backlash
of the pump driving gear.

Standard clearance Limit for replacement

(mm) (mm)
Backlash 0.3 ~ 0.5 0.8

j
Bearing side Gear side
Apply
lithium
grease

15

a
n o p m e g f m h
l k i c d b

Lubricating Oil Pump

DE-18 Z 12-01
CHAPTER
15 Lubricating Oil System
ITEM
2.4, 2.5 DE-18 Lubricating Oil Pump: Inspection and Maintenance / Reassembly

15-2.4 Inspection and Maintenance of 15-2.5 Reassembly of Lubricating Oil

Lubricating Oil Pump Pump
(1) Clean the disassembled parts with clean wash (1) Reassemble the lubricating oil pump in the
oil. reverse order of disassembly.
(2) Check for wear and pitching on the tooth (2) To fit the driving gear c , apply the lubricating
flanks of the pump gears, and check for peeling agent (MOLYCKOTE 1000 spray) to the
and seizure on the outer peripheries and side threaded portion and contact suurface of the
faces.
castle nut b , and then tighten the nut with the
(3) Check for abnormal wear on the oil seal slid- specified torque.
ing surface of the pump gear shaft. If the groove of the crown nut is not aligned with
(4) Check for abnormal contact and flaws on the the hole of the cotter pin, further tighten the nut.
inner surfaces of the pump housing and the
Specified torque: 245 N•m
pump cover.
(5) Check for wear and pitching on the tooth
flanks of the driving gear . <Cautions in reassembling>
(6) Check for flaws and traces of sticking on the 1) Replace the needle bearing and oil seal
safety valve. Correct minor defects with an oil with new ones.
whetstone. 2) Apply liquid sealant to the mating surfaces
of the pump cover and the pump housing.
3) Check the matchmarks written during dis-
assembly. Be sure to mount the pump cover
such that the oil exit hole is on the discharging
side. (The cast arrow denotes the flow direc-
tion of lubricating oil.)

(3) Mount the lubricating oil pump.

If you have replaced the pump driving gear,
check the backlash.
(4) Mount the inlet and outlet pipes.

DE-18 A 13-06
 CHAPTER
Lubricating Oil System 15
ITEM
Lubricating Oil Cooler:
General / Replacement Consumable Parts / Removal / Mounting DE-18 3.1～3.4

15-3 Lubricating Oil Cooler 15-3.3 Removal of Lubricating Oil

15-3.1 General of Structure Cooler
(1) Remove the cover mounting bolt, and remove
The lubricating oil cooler is mounted in the lubri-
the cover (A).
cating oil cooler block on the surface at the side of
the engine frame exhaust pipe, and the thermostat (2) Mount the eyebolts M12 on the top of the
valve is insert-mounted in the block as a unit. lubricating oil cooler firmly (4 pcs.).

The lubricating oil cooler is a plate type cooler. A (3) Insert a wire rope in the eyebolts M12. Use a
pattern designed to obtain the highest heat trans- chain block to keep lifting the lubricating oil
fer effect is pressed on metallic plates. The plates cooler under your control. Remove the 10 lubri-
are laminated and fixed with bolts to make a com- cating oil cooler mounting bolts and the 2 lubri-
pact structure. cating oil cooler mounting nuts. Remove the
cooler assembly from the lubricating oil cooler
block.
Lubricating oil cooler assembly: 186 kg

15-3.2 Replacement Consumable Parts, 15-3.4 Mounting of Lubricating Oil

Tools and Measuring Cooler
Instruments Mount the lubricating oil cooler in the reserve
A. Replacement consumable part order of removal.
Replace the following part with a new one.
( ："Parts List") For disassembly, inspection, maintenance, and
① O-ring 3-3.3 No.506 reassembly of the lubricating oil cooler, see the
B. Tools and measuring instruments separate instruction manual.
(a) General tools and measuring instruments
( ： 2-2)
(b) Eyebolt M12 (4 pcs.) (optional)

15

DE-18 Z 12-01
CHAPTER
15 Lubricating Oil System
ITEM
Lubricating Oil Relief Valve: General / Replacement Consumable
4.1~4.5 DE-18 Parts / Disassembly / Inspection and Maintenance / Reassembly

15-4 Lubrication Oil Relief Valve

(3) Remove the spring holder , the springs 
15-4.1 General of Structure
and , and the relief valve  from the relief
The relief valve is used to adjust the pressure. valve body .
The valve is installed on the main pipe at the lubri-
cating oil inlet at the side of the lubricating oil auto-
matic backwash filter.
Excess lubricating oil is collected in the oil pan
or in the oil tank on the engine base plate.
The lubricating oil pressure can be adjusted by
turning the adjusting bolt ⓐ to change the spring
force.

15-4.2 Replacement Consumable Parts,

Tools and Measuring
Instruments
A. Replacement consumable parts
Replace the following parts with the new ones.
( ："Parts List")
15-4.4 Inspection and Maintenance of
① Gasket 3-3.7 No.5
Lubricating Oil Relief Valve
② O-ring 3-3.7 No.504
(1) Clean the disassembled parts with clean wash
③ Circular packing 3-3.7 No.505 oil to remove sludge.
(2) Check for abnormal contact and flaws on the
B. Tools and measuring instruments relief valve. Check that the valve does not stick.
(a) General tools and measuring instruments If minor flaws are found, correct the flaws with
an oil whetstone and check that the valve can
( ：2-2)
move smoothly.
(3) Check for abnormal contact and flaws on the
15-4.3 Disassembly of Lubricating Oil
spring.
Relief Valve
(1) Remove the cap . Loosen the locknut .
15-4.5 Reassembly of Lubricating Oil
Release the adjusting screw  completely.
Relief Valve
Before loosening the adjusting screw, mark
Reassemble the relief valve in the reverse order
the tightening position of the adjusting screw,
of disassembly.
or record the size so that the original position of
the screw can be found when reassembling. (1) Set the adjusting screw at the marking position.
(2) After reassembly, operate the engine and
(2) Remove the spring case .
check that the pressure is within the blue mark
range. If the pressure is out of the range, adjust
Use caution to gradually loosen the spring the pressure with the adjusting screw.
case because the spring case is compressing
the spring.

DE-18 Z 12-01
 CHAPTER
Lubricating Oil System 15
ITEM
Lubricating Oil Thermostat Valve: General of Structure / Replacement
Consumable Parts, Tools and Measuring Instruments DE-18 5.1,5.2

15-5 Lubricating Oil Thermostat Valve When the lubricating oil temperature at the
engine inlet rises abnormally due to, for example,
15-5.1 General of Structure
a failure of the pellet (L), the temperature can be
The lubricating oil thermostat valve is installed reduced by emergency measures. To reduce the
as a unit in the lubricating oil cooler casing. temperature, screw in the adjusting bolt (A) by
The lubricating oil thermostat valve is a kind of hand to press down the valve (J) and open the port
mixing type three-way valves. On the valve, the "C".
common port "A", high-temperature port "B" and ( ：5-3.2 "Lubricating Oil Pressure
low-temperature port "C" are provided. The wax in Adjusting Procedure" in Operation Manual)
the wax pellet (L) in the common port "A" expands
and shrinks to protrude and retract the spindle (G). Lubricating oil thermostat valve assembly: 7 kg
Then, the valve (J) is opened and closed.

<Operation procedure> 15-5.2 Replacement Consumable Parts,

The figure shows the valve in the state when the Tools and Measuring
temperature of lubricating oil at the port "A" (con- Instruments
nected to the engine inlet) is low. The port "C" A. Replacement consumable parts
(connected to the outlet of the lubricating oil cool- Replace the following parts with new ones.
er) is fully closed, and the port "B" (connected to ( ："Parts List")
the bypass line of the lubricating oil cooler) is fully ① O-ring 3-3.8 No.603, 604, 605
open. ② Pellet 3-3.8 No.23
When the lubricating oil temperature rises, the ③ Circular packing 3-3.8 No.606
wax in the pellet (L) expands and pushes the
B. Tools and measuring instruments
adjusting bolt (A) and presses down the valve (J)
(a) General tools and measuring instruments
to open the port "C" and set the lubricating oil tem-
( ：2-2)
perature at the port "A" to the set value.

(N) (M) (L) (K) (J) ( I ) (H) (G) (F) (E)

(D)
(C)

(B) (A)
15
A

B C

LUB.OIL COOLER CASING

(S) (R) (Q) (P) (O)

Lubricating Oil Temperature Control Valve

DE-18 Z 12-01
CHAPTER
15 Lubricating Oil System
ITEM
Lubricating Oil Thermostat Valve:
5.3~5.5 DE-18 Disassembly / Inspection and Maintenance / Reassembly

15-5.3 Disassembly of Lubricating Oil 15-5.5 Reassembly of Lubricating Oil

Thermostat Valve Thermostat Valve
(1) Remove the mounting bolt (Q). Pull out the Reassemble the valve in the reverse order of
relief valve unit. disassembly.
(2) Disassemble the thermostat valve unit as fol-
lows:
1) Apply grease to the valve sliding surfaces.
a) Remove the mounting bolt (E), and remove
2) Replace the pellet every two years in con-
the cover (F).
sideration of the deterioration of the internal
rubber diaphragm.

Use caution not to let the spring (N) pop out

because the spring is compressed. Loosen
the bolt (E) gradually.

b) Remove the valve (J).

The pellet (L) is fitted on the valve. Draw it out
together with the valve.
c) Draw out the spring (N).
d) Remove the E-ring (H), and remove the
spring (K).
e) Remove the pellet (L) from the valve.
f) Remove the cap nut (B) and the lock nut (C),
and draw out the adjusting bolt (A).

15-5.4 Inspection and Maintenance of

Lubricating Oil Thermostat Valve
(1) Clean the disassembled parts with oil to
remove scales.
(2) Check for flaws on the outer periphery and
end face of the valve. Check that the valve
moves smoothly.
Correct minor defects with an oil whetstone.
(3) Check for abnormal contact and flaws on the
springs.

DE-18 Z 12-01
 CHAPTER
Lubricating Oil System 15
ITEM
Lubricating Oil Automatic Backwash Filter:
General / Replacement Consumable Parts / Inspection and Maintenance DE-18 6.1~6.3

15-6 Lubricating Oil Automatic 15-6.3 Inspection and Maintenance of

Backwash Filter Lubricating Oil Automatic
15-6.1 General of Structure Backwash Filter
For the handling of the filter, see the separate
The lubricating oil filter of the engine is an auto-
"Lubricating Oil Automatic Backwash Filter
matic backwash type.
Operation and Maintenance Manual".
In this filter, the filter element collects sludge.
The sludge is washed away by the flow in the
direction opposite to the filtering flow. The wash
Set the receptacle (b) (standard tool) to collect
continues sequentially from one part to another of
leak oil below the joining part between the
the element when the part connects to the return
cover and the housing if you are going to open
circuit of the backwash nozzle turned by the drive
the filter.
force of the hydraulic motor.

15-6.2 Replacement Consumable Parts,

Tools and Measuring
Instruments
A. Replacement consumable parts
See the separate "Lubricating Oil Automatic
Backwash Filter Operation and Maintenance
Manual". When you open and wash the lubricating oil
filter, you may find some metal dust. In this
B. Tools and measuring instruments case, investigate its cause and take neces-
(a) General tools and measuring instruments sary actions.
( ：2-2) 15
(b) Receptacle

DE-18 Z 12-01
CHAPTER
16 Cooling Water System
ITEM
General of Cooling Water System
1, 2.1 DE-18 Cooling Water Pumps:General of Structure

16.Cooling Water System 16-2 Cooling Water Pumps

16-1 General of Cooling Water System 16-2.1 General of Structure
The cooling water pumps are a spiral type. The
The water cooling system consists of two sub-
pumps are installed at the front of the engine, and
systems. The low temperature line supplies the
are driven by the auxiliary machine driving gear at
engine with cooling water. In the cooler subsystem
the front end of the crankshaft.
(a low-temperature system), the cooling water is
compressed and transferred by the cooler cooling
Cooling water pump assembly: 37.5 kg
water pump (installed on the engine or beside the
engine separately). In the jacket subsystem (a
high-temperature system), on the other hand, the
cooling water is compressed and transferred by
the jacket cooling water pump. The engine has
one outlet and one inlet and is a fresh water single
cooling system.
The jacket subsystem keeps the cooling water at
a certain temperature by the thermostat valve.

( :2-2.4 "Cooling Water System" in "Operation

Manual")

DE-18 Z 12-01
 CHAPTER
Cooling Water System 16
ITEM
Cooling Water Pump: Replacement Consumable Parts,
Tools and Measuring Instruments/Disassembly DE-18 2.2,2.3

16-2.2 Replacement Consumable Parts, <Cooling water pump disassembling procedure>

Tools and Measuring a) Remove the mounting nut . Remove the
Instruments pump housing .
A. Replacement consumable parts b) Remove the impeller mounting nut .Remove
Replace the following parts with new ones. the impeller . Remove the key .
( ："Parts List")
 O-ring 3-4.2 No.12, 509, 510
The impeller mounting nut  on the normal
511, 512 rotation engine is threaded as a left screw.
 Circular packing 3-4.2 No.513, 514 Pay attention to the direction of the turn when
 Oil seal 3-4.2 No.508 loosening or tightening the nut.
 Mechanical seal 3-4.2 No.14
c) Remove the rotating part of the mechanical
 Bearing 3-4.2 No.22
seal .
 Claw washer 3-4.2 No.13, 504
d) Remove the cooling water pump gear mount-
B. Tools and measuring instruments
ing nut . Remove the cooling water pump
(a) General tools and measuring instruments
gear . Remove the key .
( ：2-2.2)
e) Pull out the collar . Remove the snap ring .
f) Pull out the pump shaft  together with the ball
16-2.3 Disassembly of Cooling Water
bearing  from the bearing case . Pull out
Pump the water repelling ring (O-ring) .
A. Before dismantling the cooling water pump
g) Remove the fixing parts of the oil seal  and
assembly, disconnect the plug in the center of the
the mechanical seal from the bearing case.
pump housing  and check the backlash
p
between the pump gear  and the auxiliary
machine driving gear by touching. To check the Impeller side Bearing side
backlash, insert a screwdriver into the front end of
the pump shaft  (or remove the pump housing, Apply lithium grease
and pinch the impeller  with fingers). d c g
m f m
Standard value Limit for replacement
(mm) (mm)
j
Backlash 0.3 ~ 0.5 0.8

B. Remove the pump outlet pipe. Plug

C. Remove the mounting nut . Remove the cool-
ing water pump (assembly).
16
D. Disassemble the cooling water pump in accor-
dance with the following procedure.
Before disassembling, write a matchmark across
the joining surface between the pump housing
and the bearing case. b e a p q o n l k i h

Cooling Water Pump

DE-18 Z 12-01
CHAPTER
16 Cooling Water System
ITEM

2.4 DE-18 Cooling Water Pump: Inspection and Maintenance

16-2.4 Inspection and Maintenance of

Cooling Water Pump
Impeller
A. Clean the disassembled parts with wash oil to
Mouth ring
remove scale.
B. Measure the clearance "a" between the impeller
and the mouth ring. Measure the outer diameter

a
of the mouth ring inserting part of the impeller and
the inner diameter of the mouth ring, and calcu-
late the clearance.

Mouth ring clearance

Standard value
(mm)
Limit for replacement
(mm)
Clearance Between Impeller and Mouth Ring
a＝0.50~0.56 1.0

If the clearance has exceeded the limit for

replacement, replace the one having a larger
abrasion with a new one.
Large clearance can degrade the pump effi-
ciency.

C. Check for corrosion and cavitation on the

impeller.
D. Check for corrosion and cavitation on the pump
housing, and see if such corrosion or cavitation
has thinned the pump housing.
E. Check for wear and pitching on the cooling
water pump gear tooth flanks.
F. While turning the bearing, check that it turns
smoothly without making abnormal noise and that
it has not worn.

Even if the bearing does not show any abnor-

mality, replace it with a new one during peri-
odic maintenance every 8,000~12,000 hours
(2~3 years).

DE-18 Z 12-01
 CHAPTER
Cooling Water System 16
ITEM
Cooling Water Pump: Reassembly DE-18 2.5

16-2.5 Reassembly of Cooling Water

Pump <Attention to be paid when assembling the
cooling water pump>
(1) Reassemble the cooling water pump in the 1) Replace the oil seal, the mechanical seal,
reverse order of disassembly. the packing, the bent washer, and the O-
ring with new ones.
2) Be sure to attach the oil seal in the correct
direction.
To tighten the impeller nut b and the 3) Check that the fluctuation of the outer cir-
pump gear nut h , apply the cumference of the impeller is 0.05 or less.
lubricating agent (MOLYKOTE 1000 spray) (See the figure below.)
to the threaded portions and contact sur- 4) Write markings to denote the directions of
faces of the nuts, and then tighten the nuts the pawls of the bent washers. For the side
with the specified torque. Be sure to bend of the impeller, write a marking on the
the locking washer. impeller. For the side of the pump gear,
write a making on the gear and the bent
washer. (See the figure below.)
5) To tighten the impeller mounting nut and
When tightening the pump gear mounting nut the pump gear mounting nut, use a torque
, do not apply load (counterforce) on the wrench, and set the torque to the specified
impeller side. Fasten the gear side to tighten torque to tighten the nuts.
the nut. While tightening the nut, make sure that the
bent washer is not turning together by see-
ing the marking in step 4).
6) Before mounting the pump housing, turn
Specified torques the impeller by hand. Check that the
Impeller mounting nut：150 N•m impeller turns smoothly, and that there is a
Pump gear mounting nut：333 N•m backlash (0.1~0.7 mm) in the direction of
the shaft.

Measure the deflection

of the impeller. Write a mark on the pump gear
Write a mark on the impeller and on the claw washer to indicate
to indicate the direction of the direction of the claw of
the claw of the claw washer. the claw washer.

16
Claw washer
Claw washer
Impeller Pump gear

Marking Craw Position of the Claw Washer

and Measuring Deflection of the Impeller

DE-18 C 14-06
CHAPTER
16 Cooling Water System
ITEM

2.5 DE-18 Cooling Water Pump: Reassembly

Never allow oily substance

and foreign matters to stick
Mating Ring
<Attention to be paid when handling the Seal Ring

Impeller side
Bellows
mechanical seal>
1) Never use any grease.
2) Do not apply oil to the sliding surface.
Wipe off the oil and/or foreign substances,
if any, from the sliding surface by using
clean cloth with alcohol, acetone, or the like.
3) Apply turbine oil #32 or equivalent thinly on Apply turbine oil # 32
"Never use grease."
the inner circumference and the shaft of the
Installation of the Mechanical Seal
mechanical seal before assembly.
4) After assembly, leave the mechanical seal
alone for 30 minutes or longer.

(2) Mount the cooling water pump on the engine.

If you have replaced the cooling water pump
gear, check the backlash.
(3) Mount the cooling water outlet pipe.

If the mounting surface of the cooling water

outlet pipe does not fit, loosen the pump
mounting bolt. Fasten the cooling water outlet
pipe. After this, fasten the mounting surface
again.
The pump bearing may be damaged if you
forcibly connect the mounting surface.

DE-18 Z 12-01
 CHAPTER
Cooling Water System 16
ITEM
Cooling Water Bypass Valve: General of Structure / Replacement
Consumable Parts, Tools and Measuring Instruments DE-18 3.1,3.2

16-3 Cooling Water Bypass Valve 16-3.2 Replacement Consumable Parts,

16-3.1 General of Structure Tools and Measuring
Instruments
The cooling water bypass valve is insert-mount-
ed as a unit on the side of the air cooler and con-
A. Replacement consumable parts
nected to the cooling water outlet passage of the
Replace the following parts with new ones.
air cooler.
 O-ring 3-4.3 No.506, 507,
Under a low load, the cooling water bypass
508, 509, 510
valve shuts off cooler line cooling water to the air
 Circular packing 3-4.3 No.511
cooler, and bypasses the water to heat the intake
air with jacket line cooling water. The valve is con-
trolled by the hydraulic piston based on the
B. Tools and measuring instruments
detected engine load.
(a) General tools and measuring instruments
( ： 2-2.4 "Cooling Water System" in
"Operation Manual") ( ：2-2 )

<Operation procedure>
The figure shows the phase at the time of a
heavily loaded operation. The cooling water (low-
temperature line) passes the lubricating oil cooler From the
LO cooler
to the air cooler, then flowing to the engine outlet.
When the engine is with the load equal to or
lighter than a certain level, the solenoid valve oper-
ates to draw the lubricating oil in. The hydraulic To the engine
pressure makes the piston (B) compress the outlet
spring (E), opening the valve (F). The valve (F) is
CW bypass
seated on the side of the water chamber of the air valve block
cooler.
Then, the outlet passage of the air cooler is shut
off, and the outlet passage of the cooling water
Bypass
pump is opened. Cooling water bypasses the air Lubricating
cooler and flows into the lubricating oil cooler. oil pipe

You can adjust the temperature of the intake air

Cover(C)
for an operation with the load equal to or heavier
than a certain level. To do so, adjust how deep you Circular
push the adjusting bolt (H) to change the amount packing
of the valve lift. Doing so adjusts the amount of the
cooling water that flows to the air cooler. Cooling Water Bypass Valve 16
Pushing the adjusting bolt (H) increases the
temperature of the intake air.
Pulling the adjusting bolt (H) decreases the tem-
perature of the intake air.

Cooling water bypass valve assembly: 4 kg

DE-18 Z 12-01
CHAPTER
16 Cooling Water System
ITEM
Cooling Water Bypass Valve:
3.3,3.4 DE-18 Disassembly / Inspection and Maintenance

16-3.3 Disassembly of Cooling Water 16-3.4 Inspection and Maintenance of

Bypass Valve Cooling Water Bypass Valve

A. Disconnect the lubricating oil pipe for bypass A. Before washing the parts, inspect the body (D)
valve. cylinder part to see if any trace of water leak or oil
B. Remove the bolt M12. Take out the bypass leak is seen. If you see such a trace, inspect
valve assembly from the bypass valve block. carefully the relevant parts, for example, to see if
C. Disassemble the bypass valve in accordance the O-ring is deformed or scarred and to see if
with the following procedure. the surfaces in contact with the O-ring are dam-
aged or partially abraded.
<Disassembling procedure> B. Clean the disassembled parts with wash oil to
(1) Remove the bolt M12. Remove the cover (C). remove scale.
The adjusting bolt (H) is on the cover (C). So C. Check that the valve is not hardened or
you can remove this bolt along with the cover. deformed and the seat surface has not been
(2) Remove the U-nut on the side of the piston
flawed. If any defect is found, replace the valve
(B). Remove the piston (B) and the spring (E).
with a new one.
D. Check for abnormal contact and flaws on the
outer periphery of the shaft and the inner surface
Use caution to gradually loosen the U-nut
of the bush (G). Check that the shaft does not
because the nut is compressing the spring.
stick.
Quickly removing the nut can be dangerous
If minor defects are found, correct the defects
because the piston, or any other components,
with an oil whetstone, and check that the shaft
may pop out.
can move smoothly.
(3) Draw out the set of the valve (F) and the shaft E. Check for abnormal contact and flaws on the
(A) to the opposite side. spring.
(4) Remove the U-nut and the flat washer from
the side of the valve (F). Remove the valve
form the shaft (A).
(5) Before removing the adjusting bolt (H) from
the cover (C) (you do not need to remove it
except when doing so is necessary to mend
rust, deformation, etc.), measure the distance
"L" from the lock nut end surface to the end of
the adjusting bolt (H) and take a note of it after
removing the sleeve nut (I). Remove the lock
nut. Pull out the adjusting bolt (H).
(6) Remove the O-rings (6 pcs.) from each part.

DE-18 Z 12-01
 CHAPTER
Cooling Water System 16
ITEM
Cooling Water Bypass Valve: Reassembly and Mounting DE-18 3.5

16-3.5 Reassembly and Mounting of

Cooling Water Bypass Valve

A. Reassemble the bypass valve in accordance

with the reverse procedure for disassembling.

1. Before fitting the O-rings, apply grease to

them.
2. Apply grease to the sliding areas of the
shaft.
3. Adjust the height of the adjusting bolt (H) to
the height recorded at the time of disassem-
bly. Fasten the adjusting bolt with the lock
nut, and tighten the sleeve nut.

B. Mount the bypass valve assembly in the bypass

valve block.
C. After operating the engine, check that if water
leak, oil leak, or the like is seen.

16

DE-18 Z 12-01
CHAPTER
16 Cooling Water System
ITEM
Cooling Water Thermostat Valve: General / Replacement
4.1~4.3 DE-18 Consumable Parts, / Removal of Thermostat

16-4 Cooling Water Thermostat Valve 16-4.3 Removal of Thermostat

16-4.1 General of Structure (1) Close the valves at the inlet and outlet of the
The cooling water thermostat valve has a struc- cooling water at the engine. Drain the cooling
ture in which two wax pellet thermostats are dis- water out of the cylinder jacket.
posed in parallel with each other in the case made (2) Remove the thermostat valve cover.
by casting. (3) Take out the thermostats.
(4) Check the mark that indicates the temperature
16-4.2 Replacement Consumable Parts, to open the valve on the thermostat.
Tools and Measuring
Instruments
A. Replacement consumable parts
When the thermostat valve case is removed.
( ："Parts List")
 O-ring3-4.4 No.503
 O-ring3-4.4 No.504

B. Tools and measuring instruments

(a) General tools and measuring instruments
( ：2-2)

To fresh
water cooler

Thermostat valve cover

To cooling
water pump
(Jacket line)

DE-18 A 15-07
 CHAPTER
Cooling Water System 16
ITEM
Cooling Water Thermostat Valve:
Inspection of Thermostat / Reassembly of Thermostat Valve DE-18 4.4,4.5

16-4.4 Inspection of Thermostat 16-4.5 Reassembly of Cooling Water

(1) Inspect the valve, the spring, the mounting Thermostat Valve
frame, and so forth to see if any crack is seen. Reassemble the cooling water thermostat valve
Inspect the spring to see if any bent portion is in the reverse order of disassembly.
seen. Inspect the valve seat to see if any for-
eign objects are caught.
If a crack, a bent portion, or the like is found,
Apply liquid packing on the mounting surface
replace such part with a new one.
of the thermostat valve cover.
(2) Measure the valve lift of the thermostat.
Prepare cool water and hot water. Leave the
thermostat for several minutes in one of them
If you have removed the thermostat valve
at a time. Measure the valve lift (L), and com-
case, follow the instruction below during
pare the measurement with the table below.
assembly:
If the valve lift does not satisfy the correspon-
・Replace the O-ring used at the cooling
ding number in the table, replace the thermo-
water inlet/outlet.
stat with a new one.

Temperature of water
Lift (L)
used for inspection
Cool water (30㷄 or less) 43.5 mm
53.5 mm or
Hot water (90-100㷄)
more

The imprint of
the open valve
temperature

Valve

Frame 16
.

Spring

Valve

Measurement of Valve Lift

DE-18 Z 12-01
CHAPTER
17 Engine Control and Protective System
ITEM

1 DE-18 General of Engine Control and Protective System

17.Engine Control and Protective B. Engine protective system

・Switches and sensors (speed, temperature,
System pressure, level, etc.) They must not be dis-
assembled. Replace them as assemblies.
17-1 General of Engine Control and
・Electric parts: They must not be disassem-
Protective System bled. Replace them as assemblies.
・Fuel control cylinder (fuel shutdown device):
The engine control and protective system differs
Incorporated with the fuel control device
depending on delivery specifications. However, (explained in this section)
every system has the following common compo-
nent devices. Inspect and maintain the devices as
stated below.
( ：2-3 "Engine Operation Control, Protective
Device" in "Operation Manual")

A. Engine control (starting, operating and

stopping) system To the starting
・ Switch box (engine-side/remote switching valve(*)

switch, start switch), starting valve, handle

switch.
( ：13. "Starting Air System")
・Governor
( ：Separate "Governor Instruction Manual")
・Turning safety switch: The switch must not
be disassembled. Replace the switch as an
assembly.
・ Fuel control cylinder (fuel control device):
Incorporated with the fuel shutdown device
(explained in this section)

DE-18 Z 12-01
 CHAPTER
Engine Control and Protective System 17
ITEM
Fuel Control Cylinders: General
of Structure/Replacement
Consumable Parts, Tools and Measuring Instruments/Removal DE-18 2.1～2.3

17-2 Fuel Control Cylinders (Power 17-2.2 Replacement Consumable Parts,

Generator Specifications) Tools and Measuring
17-2.1 General of Structure Instruments
A. Replacement consumable parts
The fuel control cylinders are installed in the Replace the following parts with new ones.
front upper area of the engine. Each cylinder and
( ："Parts List")
solenoid valves are mounted on the same bracket.
① Piston packing 3-6.1.1 No.8
The fuel control cylinders include stopping cylin-
 Cylinder gasket 3-6.1.1 No.10
ders for shutting off fuel and control cylinders for
 Rod packing 3-6.1.1 No.11
controlling excessive fuel injection. These cylin-
B. Tools and measuring instruments
ders are arranged tandem. Control air is applied (a) General tools and measuring instruments
to each piston, and the fuel injection pump rack is
( ： 2-2 )
shifted to the stop or control position through the
common rod.
17-2.3 Removal of Fuel Control
Cylinders
Fuel control cylinder assembly: 2.8 kg
A. Disconnect the stop pipe 5V (A) and control
pipe 88L (B).
B. Before removing the fuel control cylinder
assembly, put matchmarks to the bracket (C) and
the fuel control cylinder assembly.
C. Loosen the bolt, and remove the fuel control
cylinder assembly from the bracket (C).

17

DE-18 Z 12-01
CHAPTER
17 Engine Control and Protective System
ITEM

2.4 DE-18 Fuel Control Cylinders: Disassembly

17-2.4 Disassembly of Fuel Control F. To detach the right cylinder for controlling fuel,
Cylinders remove the snap rings (2) from both sides, and
draw out the rod metal (3), rods (12) and (16) and
Disassemble the fuel control cylinder assembly
piston (14).
in accordance with the following procedure.

A. Before disassembling the fuel control cylinder

assembly, measure and record the size "a"
If the chromium plating on the packing sliding
between the fitting (28) and the fuel control cylin-
surfaces of the rods is not damaged, do not
der and the size (b) between the stopper (17) and
disassemble the rods and pistons.
the fuel control cylinder.
B. Remove the lock nut (27) and the fitting (28).
C. Remove the rod end nut (18) and the stopper G. Remove the piston packing (8), cylinder gasket
(17). (10), and rod packing (11) from the rod metal (3),
D. Draw out the bolts (19) and (24), remove the and pistons (9) and (14).
brackets (23) and (25) and the plate (15), and
separate the combined two cylinders.
E. To detach the cylinder for shutting off fuel
shown on the left of the figure, remove the snap
rings (2) from both sides, and draw out the rod
metal (3), spring (4), spring seat (6), rod (5) and
piston (9).

DE-18 Z 12-01
 CHAPTER
Engine Control and Protective System 17
ITEM
Fuel Shutoff Device:Inspection,
Maintenance and
Reassembly/Mounting and Adjustment DE-18 2.5,2.6

17-2.5 Inspection, Maintenance and 17-2.6 Mounting and Adjustment of

Reassembly of Fuel Control Fuel Control Cylinders
Cylinders A. Mount the fuel control cylinder assembly on the
A. Clean the disassembled parts with clean wash bracket aligning the matchmarks.
oil, and blow air to them. B. Connect the pipes.
B. Check for abnormal contact and corrosion on C. Set the engine operation lever at the "RUN"
the inner surface of the cylinder (7). position, feed control air to the control cylinder of
C. Check for abnormal contact and flaws on the rod. the fuel control cylinders, and check that the rack
D. Check the corrosion on the spring. scale shows the specified value.
E. Check that the parts are free from rust caused by If the specified value is not indicated, loosen the
drain. If rust is found, carefully remove the rust. rod end nut, and turn the stopper to adjust the
F. Reassemble the fuel shutoff device assembly in rack.
accordance with the reverse procedure for disas- D. Then, feed air to the shutoff cylinders, and
sembling. check that the rack is 0.
If the rack is not 0, loosen the lock nut (27), and
turn the fitting (28) to adjust the rack.
1. Replace the piston packings (8), (11), and (Turn the fitting clockwise, and the shutoff stroke
cylinder gasket (10) with new ones. decreases.)
2. When reassembling, apply grease thin to E. Repeat steps C and D above. After completion
the sliding areas of the piston packing and of adjustment of the control stroke and shutoff
the cylinder gasket. stroke, secure the stopper (17) and the fitting (28)
3. The rod and cylinder are similar in shape. with the rod end nut (18) and the lock nut (27),
Take care not to fit them in the wrong position. respectively.
4. Set the distances 'a' and 'b' as those before
disassembly.

G. After reassembling, check that the parts oper-

ate without any trouble.

17

DE-18 Z 12-01
CHAPTER
17 Engine Control and Protective System
ITEM
F.O. control cylinder: General construction / Replacing consumables, implements
3.1~3.3 DE-18 and measuring instruments / Disassembly of F.O. control cylinder

17.3 F.O. control cylinder 17.3.3 Disassembly of F.O. control

17.3.1 General construction cylinder
(1) Remove the F.O. control cylinder from the
The F.O. control cylinder is used in the variable
engine.
speed engine (the main engine, etc.).
(2) Before disassembling, put a mark (a match
The F.O. control cylinder is installed to control
mark) to the adjusting bolt and the spring seat,
excessive fuel injection, and this cylinder will shift
or keep the record of the dimension.
the fuel injection pump rack to the fuel control
position via the common rod by supplying gover- (3) Disassemble the F.O. control cylinder accord-
nor air to the control piston. ing to the following procedure.
a) Loosen the lock nut (b), and remove the
F.O. control cylinder: 10 kg adjusting bolt (a).
b) Loosen the set screw (c), and remove the
spring seat (d).
17-3.2 Replacing consumables, imple- c) Extract the main spring (e) and the piston (f)
ments and measuring instru- out of the control cylinder (g).
ments
(1) Replacing consumables
Replace the following parts with the new ones

( : "Parts List")
1) Mini-Y gasket 3-6.1.3 No. 23
2) GLY gasket 3-6.1.3 No. 24
3) Gasket 3-6.1.3 No. 513

(2) Implements and measuring instruments

1) General implements and measuring instru-
ments ( : 2-2)

(d) (c) (e) (g) (f) (b) (a)

F. O. Control Cylinder

DE-18 A 16-04
 CHAPTER
Engine Control and Protective System 17
ITEM
F.O. control cylinder:Inspection, maintenance and asembly of F.O. control cylinder /
Fitting and adjustment of F.O. control cylinder DE-18 3.4,3.5

17.3.4 Inspection, maintenance and 17.3.5 Fitting and adjustment of F.O.

assembly of F.O. control cylinder control cylinder
(1) Clean all the disassembled parts with clean (1) Install the F.O. control cylinder to the engine.
washing oil, and blow air on them. At this time, set the adjusting bolt and the
(2) Check if there is any abnormal dent and spring seat to the match mark position.
scratch on the piston. (2) Confirm that the fuel oil injection quantity
(3) Check if there is any abnormal dent and (under approx. 1/3 of the load) is sufficient to
scratch on the cylinder inner surface. start the engine (starting time control position),
(4) Check if there is any scratch on the main in the state that governor air is supplied to the
spring. control piston.

(5) Check if there is any rusting owing to drain on If case that the engine cannot be started,
each parts. In case that any rust is found, adjust the injection quantity with the adjusting
carefully remove it. screw.

(6) Assemble the F.O. control cylinder in the (3) While the engine is operating, the link lever
reverse procedure of that for disassembly. changes according to the main engine load
characteristics in the range from approx. 1/3 of
the load to the full load, and then adjust the
Replace the Y-ring with a new one. main spring force moving the spring seat so
Before assembling, thinly apply grease to the that the clearance with the adjusting screw tip
sliding part of the Y-ring, piston, and so on. is 0.5 to 2 mm.
(4) After the completion of adjustment, fix the lock
(7) After assembling, check that all the parts nut of the adjusting screw and the set screw of
move smoothly. the spring seat.

Rack stopper position

Fuel rack
graduation Rack control piston
operating characteristics

Main propulsion engine

load charactaristics
Control position at starting

[D.S.] [SLOW] [HALF] [FULL]

17
Operating air pressure [MPa]

Adjustment or Fuel Oil Control Cylinder

DE-18 Z 15-10
CHAPTER
18 Gauge Board
ITEM
Gauge Board: General / Replacement Consumable Parts,
1.1～1.3 DE-18 Tools / Disassembly and Maintenance

18.Gauge Board B. Inspection and Maintenance of Gauge Board

(1) Check the accuracy of each gauge comparing
18-1 Gauge Board it with the calibration device or a new instru-
18-1.1 General of Structure ment. If the gauge is defective, replace it with
a non-defective one.
The gauge board is installed at the rear of the
(2) Replace the hoses with new ones.
engine. The instruments can be checked from the
fuel oil injection pump side.
The gauge board has a tachometer and pres-
sure gauges (for lubricating oil, fuel oil, intake air
and cooling water), and is supported by spring. 1. Defective gauges cannot be repaired on
The pressure gauges on the gauge board con- site. Replace them with new ones, or ask a
tain glycerol and are excellent in the anti-vibration special manufacturer to repair them.
performance. The board has 5~7 pressure gauges 2. Heavily deteriorated hoses may break. If
depending on the delivery specifications. the hoses for fuel oil and lubricating oil
The tachometer is driven from the rear end of break and high-temperature parts are
the camshaft through the flexible cable. The pres- splashed with the oil, a fire may occur.
sure gauges are connected to the needle valves at Replace such hoses without fail.
the pipe ends with hoses.

18-1.2 Replacement Consumable Parts,

Tools and Measuring
Instruments
A. Replacement consumable parts
Replace the following parts with new ones.
( : "Parts List")
① Hoses 3-5.1 No.19, 20, 21,22, 23
② Circular packing 3-5.1 No.512
B. Tools and measuring instruments
(a) General tools and measuring instruments
( ：2-2)

18-1.3 Disassembly and Maintenance

of Gauge Board
Disassemble and maintain the gauge board dur-
ing periodic maintenance (every 16,000~24,000
hours or 4~5 years).

A. Disassembly of gauge board

(1) Remove the flexible cable of the tachometer
from the outlet.
(2) Close the needle valves of the pressure
gauges, and disconnect their hoses.
(3) Remove the bolts fitting the spring on the brack-
et, and dismantle the whole gauge board.

DE-18 Z 12-01
 CHAPTER
Gauge Board 18
ITEM
Seal Pot DE-18 2

18-2 Seal Pot (for Heavy Fuel Oil Type)

For heavy fuel oil type, a seal pot is provided in
the middle of the fuel oil pressure gauge piping to Fuel inlet block 1
prevent malfunctions of the pressure gauges
owing to seizing of the fuel oil in a cold state. The
seal pot is filled with ethylene glycol to replace the
pressure. (B)

As time passes, ethylene glycol is mixed with

fuel oil, contaminated and deteriorated. Replace
ethylene glycol approximately every year. (a)
(C) To remote
pressure gauge
<Procedure for changing ethylene glycol> (c)
(1) Close the valves (b), (c) and (d) at the outlet
(D) To pressure
and inlet of the seal pot. gauge
(2) Remove the pipes, and remove the seal pot (b)

(a).
(3) Remove the joint (c) on the inlet side of the
siphon tank (b) to discharge fuel oil and ethyl- (A)
ene glycol in the siphon tank. Seal pot

(4) Clean the inside of the siphon tank.

(5) Feed ethylene glycol from the top hole until it Seal Pot
overflows (approx. 130 cc), and fit the joint.
(6) Mount the seal pot, and connect the pipes.

Although ethylene glycol is less toxic to skin

and mucous membranes, you are exposed to
danger if it is taken into your body. Carefully
handle it. If it adheres to your hand or skin,
immediately wash it away.

18

DE-18 Z 12-01
 パーツリスト
PARTS LIST

6DE-18

V07
● Replacement Parts
. Hazards and nonconformities of imitation parts
<Use of imitation parts causes accidents.>

1. Recent engines have compact bodies and high power, and are designed to prevent fuel
deterioration and to reduce NOx discharge. Even if imitation parts are similar in shape
to the genuine parts, the use of imitation parts will degrade the engine performance
because of their fragile materials and low machining accuracy. Since the service life of
such parts is short, the engine must be maintained more frequently.
2.If imitation parts are used for the engine conforming to NOx Technical Code, the certificate
(EIAPP) may lose its validity, and operation of the engine may be inhibited.
3. If you use imitation parts, you will not be supplied with parts improved in quality and
performance.
4. If imitation parts are used, it may be difficult to make insurance claims for the engine
when any accident occurs.
5. We take no responsibility for the engine in which imitation parts are used.

Daihatsu Diesel supplies reliable engines. Use genuine parts to

operate your engine safely.

http://www.dhtd.co.jp

Head Office 1-30, Oyodo Naka 1-chome, Kita-ku, Osaka, 531-0076 Japan
TEL : 81-6-6454-2393 FAX : 81-6-6454-2682
Tokyo Office 2-10, Nihonbashi-Honcho 2-chome, , Chuo-ku, Tokyo, 103-0023 Japan
TEL : 81-3-3279-0827 FAX : 81-3-3245-0359
Moriyama Division 45 Amura-cho, Moriyama-city, Shiga, 524-0035 Japan
TEL : 81-77-583-2551 FAX : 81-77-582-5714

Taiwan Office c/o Marine Technical Industries Co., Ltd.

No.14 Tai-Tang RD, Lin-Hai Industrial Zone, Kaohsiung, 812 Taiwan
TEL : 886-7-803-1082 FAX : 886-7-801-9179

Daihatsu Diesel (Europe) Ltd. Floor 28,One Canada Square,Canary Wharf,London E14 5AA, U.K.
TEL: 44-20-3871-5000 FAX: 44-20-7512-9291

Daihatsu Diesel (AMERICA), Inc. 380 N Broadway, Suite 302, Jericho, N.Y. 11753, U.S.A.
TEL : 1-516-822-3483/4 FAX : 1-516-822-3485
Daihatsu Diesel (ASIA PACIFIC) Pte.Ltd. 16 Collyer Quay, Income at Raffles #29-02, Singapore 049318
TEL : 65-6589-9510 FAX : 65-6536-4964
Daihatsu Diesel (SHANGHAI) Co.,Ltd. Room A-B Floor 14, Huamin Empire Plaza, No. 728 Yanan Rd (w), Shanghai, China
TEL : 86-21-6225-7876/7 FAX : 86-21-6225-9299

201706
 TYPE DE ENGINE
HOW TO ORDER PARTS

For the TYPE DE engine, we have newly adopted a parts control system. To properly control the parts
at the production stage and delivery stage, we have stored the data of each engine, such as specifica-
tions and applicable parts, in the database.
When ordering parts, engine number and parts code ( 8-digit ,10-digit or 12-digit codes) are requested.
Before ordering parts, be sure to check your engine number so that we can promptly send you the right
parts.

Example: How to order parts

Before ordering a part, be sure to check the engine number, part name, and part code.
Engine number: DE618Z0001
(Check the engine number shown in the operation result sheet or the engine
number marked on the actual engine.)
Part name: F. O. NOZZLE
(Check the part name shown in the parts list.)
Part code: 06473-013
(Check the part code shown in the parts list.)

Notes regarding ordering parts:

Various parts of our engines are controlled for each engine. If you use the part once ordered to the
other type of engine, please contact our sales company, and ask whether the part can be used for the
other engine.
Use of the part for the other type of engine may not be possible due to difference in the specifications,
improvement of the part, etc.
If a wrong type of part is used for your engine, an unexpected problem may occur. In addition, if your
engine is conformed to NOx Technical CodeI, the certificate may lose its validity.
For the NOx control parts, be sure to write the parts replacement history in the engine record book to
properly control the parts.
 CHAPTER
部品目次
ITEM
PARTS CONTENTS DE-18

0 機関構造図，機器配置図
ENGINE CONSTRUCTION AND ENGINE EQUIPMENT

-1 機関外形図
ENGINE OUTLINE

-2 機関断面図
ENGINE SECTION

1 NOxテクニカルコード適合機関
ENGINE CONFORMING TO NOx TECHNICAL CODE

2 機関主要部品
MAIN PARTS

-0 オイルパン
OIL PAN

-1 架構
ENGINE FRAME

-2.1 架構側蓋（発電機関）
ENGINE SIDE COVER (GENERATOR ENGINE)

-2.2 架構側蓋（主機関）
ENGINE SIDE COVER (PROPULSION ENGINE)

-3 架構安全弁
ENGINE FRAME SAFETY VALVE

-4 ギヤケース
GEAR CASE

-5 補機駆動ギヤ
AUX.MACHINERY GEAR

-6 アイドルギヤ
IDLE GEAR

-7 クランク軸
CRANKSHAFT

-8 バランスウエイト
BALANCE WEIGHT

-9 主軸受
MAIN BEARING

-10.1 フライホイール
FLYWHEEL

-10.2 フライホイール-２
FLYWHEEL-2

-11 シリンダライナ
CYLINDER LINER

-12.1 ピストン(一体)
MONOBLOCK PISTON

-12.2 ピストン(分割)
BUILD UP PISTON

DE-18 B  15-10
CHAPTER
部品目次
ITEM

DE-18 PARTS CONTENTS

-13 連接棒
CONNECTING ROD

-14 シリンダヘッド
CYLINDER HEAD

-15.1 シリンダヘッドカバー
CYLINDER HEAD COVER

-15.2 シリンダヘッドカバー（点検窓付き）
CYLINDER HEAD COVER (WITH INSPECTION WINDOW)

-16 吸気弁
INTAKE VALVE

-17 排気弁
EXHAUST VALVE

-18 起動弁
STARTING VALVE

-19 カム軸
CAM SHAFT

-20 カム軸受
CAM SHAFT BEARING

-21 吸・排気タペット
INTAKE ＆ EXHAUST TAPPET

-22 弁腕
ROCKER ARM

-23 燃料噴射ポンプ
FUEL OIL INJECTION PUMP

-24.1 燃料噴射装置
FUEL OIL INJECTION DEVICE

-24.2 ノズルホルダ
NOZZLE HOLDER

-25 コモンロッド
COMMON ROD

-26.1 調速機取付（RHD）
GOVERNOR DRIVING DEVICE (RHD)

-26.2 調速機取付（UG）
GOVERNOR DRIVING DEVICE (UG)

-26.3 調速機取付（EAR20）
GOVERNOR DRIVING DEVICE (EAR20)

-27.1 調速機リンク(RHD)
GOVERNOR LINK(RHD)

-27.2 調速機リンク(UG)
GOVERNOR LINK(UG)

-27.3 調速機リンク（EAR20）
GOVERNOR LINK (EAR20)

DE-18 C  16-04
 CHAPTER
部品目次
ITEM
PARTS CONTENTS DE-18

-28.1 排気管
EXHAUST MANIFOLD

-28.2 排気管(主機、MET)
EXHAUST MANIFOLD (PROPULSION ENGINE, MET)

-29.1 排気管カバー(AT)
EXHAUST MANIFOLD COVER(AT)

-29.2 排気管カバー(MET,TPS)
EXHAUST MANIFOLD COVER(MET,TPS)

-30.1 過給機取付(AT)
TURBOCHARGER FITTING(AT)

-30.2 過給機取付(MET)
TURBOCHARGER FITTING(MET)

-30.3 過給機取付(TPS)
TURBOCHARGER FITTING(TPS)

-31 空気冷却器
INTERCOOLER

-32.1.1 空気冷却器取付(T/C:AT)
INTERCOOLER FITTING(T/C:AT)

-32.1.2 空気冷却器(T/C:AT)ドレン配管
INTERCOOLER(T/C:AT)DRAIN PIPING

-32.2.1 空気冷却器取付(T/C:MET)
INTERCOOLER FITTING(T/C:MET)

-32.2.2 空気冷却器(T/C:MET)ドレン配管
INTERCOOLER(T/C:MET)DRAIN PIPING

-32.3.1空気冷却器取付(T/C:TPS)
INTERCOOLER FITTING(T/C:TPS)

-32.3.2空気冷却器(T/C:TPS)ドレン配管
INTERCOOLER(T/C:TPS)DRAIN PIPING

-33.1 ヒートボックス（低質油）
HEATBOX (HEAVY FUEL OIL)

-33.2 ヒートボックス（Ａ重油）
HEATBOX (DIESEL FUEL OIL)

-34 電磁弁
MAGNETIC VALVE

-35 制御電磁弁
CONTROL MAGNETIC VALVE

-36 スタート＆キリカエスイッチボックス
START & CHANGE SWITCH BOX

-37 指圧器
INDICATOR

DE-18 C  16-04
CHAPTER
部品目次
ITEM

DE-18 PARTS CONTENTS

3 機関付属品
INSTRUMENTS ＆ ACCESSORIES

-1 空気系統
AIR SYSTEM

-1.1 起動空気配管系統図
STARTING AIR PIPING SYSTEM

-1.2 始動弁25A
STARTING AIR VALVE 25A

-1.3 起動回転弁
STARTING AIR ROTARY VALVE

-1.4 回転計駆動装置
TACHOMETER DRIVING DEVICE

-2 燃料系統
FUEL OIL SYSTEM

-2.1 燃料配管系統図
FUEL OIL PIPING SYSTEM

-2.2.1 燃料漏油戻し配管系統図（低質油）
FUEL OIL PIPING-LEAK OIL SYSTEM (HEAVY FUEL OIL)

-2.2.2 燃料漏油戻し配管系統図（Ａ重油）
FUEL OIL PIPING-LEAK OIL SYSTEM (DIESEL FUEL OIL)

-2.3 燃料送油ポンプ (オプション)

FUEL OIL FEED PUMP (OPTION)

-2.4 燃料送油ポンプ取付 (オプション)

FUEL OIL FEED PUMP FITTING (OPTION)

-2.5.1 燃料濾器
FUEL OIL FILTER

-2.5.2 燃料濾器取付
FUEL OIL FILTER FITTING

-2.6 燃料調圧弁
FUEL OIL RELIEF VALVE

-2.7 シールポット
SEAL POT

-2.8 燃料ブロック
FUEL OIL BLOCK

-2.9 逃がし弁
FUEL OIL RELIEF VALVE

-2.10 チェック弁（Ａ重油）
CHECK VALVE (DIESEL FUEL OIL)

DE-18 D  16-04
 CHAPTER
部品目次
ITEM
PARTS CONTENTS DE-18

-3 潤滑油系統
LUBRICATING OIL SYSTEM

-3.1.1 潤滑油配管（発電機関）
LUBRICATING OIL PIPING (GENERATOR ENGINE)

-3.1.2 潤滑油配管（主機関）
LUBRICATING OIL PIPING (PROPULSION ENGINE)

-3.2.1 過給機潤滑油配管系統図(AT,TPS)
T/C LUBRICATING OIL PIPING SYSTEM(AT,TPS)

-3.2.2 過給機潤滑油配管系統図(MET)
T/C LUBRICATING OIL PIPING SYSTEM(MET)

-3.3 潤滑油冷却器取付
L.O. COOLER FITTING

-3.4 潤滑油冷却器（プレート式）
L.O. COOLER (PLATE TYPE)

-3.5 自動逆洗潤滑油濾器
AUTOMATIC BACK WASHING L.O. FILTER

-3.6 潤滑油ポンプ＆取付
LUBRICATING OIL PUMP & FITTING

-3.7 潤滑油調圧弁
LUBRICATING OIL RELIEF VALVE

-3.8 潤滑油温調弁
LUBRICATING OIL THERMOSTAT VALVE

-3.9 遠心濾器
CENTRIFUGAL OIL FILTER

-4 冷却水系統
COOLING WATER SYSTEM

-4.1.1 冷却水配管（１系統、冷却水ポンプ２台付き）
COOLING WATER PIPING (1 WATER LINE,WITH 2 C.W. PUMPS)

-4.1.2 冷却水配管（２系統、冷却水ポンプ２台又は１台付き）
COOLING WATER PIPING (2 WATER LINES,WITH 2 C.W. PUMPS OR 1 C.W. PUMP)

-4.1.3 吸気ドレン配管
INTAKE DRAIN PIPING

-4.2 冷却水ポンプ＆取付
COOLING WATER PUMP ＆ FITTING

-4.3 冷却水バイパス弁＆取付
COOLING WATER BYPASS VALVE ＆ FITTING

-4.4 冷却水温調弁
COOLING WATER THERMOSTAT VALVE

DE-18 D  16-04
CHAPTER
部品目次
ITEM

DE-18 PARTS CONTENTS

-5 計器板
GAUGE BOARD

-5.1.1 計器板（発電機関）
GAUGE BOARD (GENERATOR ENGINE)

-5.1.2 計器板（主機関）
GAUGE BOARD (PROPULSION ENGINE)

-5.2 計器板ゲージ
GAUGE

-6 保護装置
PROTECTIVE DEVICE

-6.1.1 燃料コントロールシリンダ
FUEL CONTROL CYLINDER

-6.1.2 燃料コントロールシリンダ取付
FUEL CONTROL CYLINDER FITTING

-6.1.3 燃料コントロールシリンダ(変速機関用）
FUEL CONTROL CYLINDER(VARIABLE SPEED ENGINE)

-6.3 レベルスイッチボックス
LEVEL SWITCH BOX

-6.4 ハンドルスイッチ
HANDOL SWITCH

-6.5 パルスセンサ
PULSE SENSOR

-6.6.1 ジャンクションボックス＆取付
JUNCTION BOX & FITTING

-6.6.2 ジャンクションボックス＆取付(EAR20）
JUNCTION BOX & FITTING (EAR20)

-6.7 温度計配置図
ARRANGEMENT OF THERMOMETER

-6.8 ターニング安全スイッチ
TURNING SAFETY SWITCH

-6.9 ポテンショメータ＆取付
POTENTIOMETER & FITTING

-7 過給機洗浄
T/C CLEANING

-7.1 過給機洗浄配管(AT)
T/C CLEANING PIPING(AT)

-7.2 過給機洗浄配管(MET)
T/C CLEANING PIPING(MET)

-7.3 過給機洗浄ブロワシリンジ
T/C CLEANING BLOWER SYRINGE

DE-18 D  16-04
 CHAPTER
部品目次
ITEM
PARTS CONTENTS DE-18

-7.4 過給機洗浄配管(TPS)
T/C CLEANING PIPING(TPS)

-7.5 過給機洗浄ブロワシリンジ(TPS)
T/C CLEANING BLOWER SYRINGE(TPS)

-8 工具
TOOLS

-8.1.1 油圧ジャッキ（クランクピン＆サイドボルト）
OIL PRESS.JACK (CRANKPIN ＆ SIDE BOLT）

-8.1.2 油圧ジャッキ(シリンダヘッド）
OIL PRESS.JACK（CYLINDER HEAD）

-8.1.3 油圧ジャッキ(主軸受）
OIL PRESS.JACK（MAIN BEARING）

-8.2 吊り金具
HANGER

DE-18 D  16-04
CHAPTER
0 機関外形図
ITEM
1 DE-18 ENGINE OUTLINE

Starting Valve Tubocharger H.T. Cooling Water

Temperatuer Control VAlve
Indicator Valve (with cover)
Fuel Oil Control
Cylinder

Air Cooler

H.T. Cooling
Water Pump

Fuel oil
Feed Pump

L.T. Cooling Water Pump Lubricatin Oil Pump Fuel Oil Flter Engine Number (Engraving)

Lubricating Oil
Lubricating Oil Cooler
Auto-Backwash Filter

Lubricating Oil
Relief Valve

Cooling Water
Bypass Valve

Lubricating Oil
Engine Frame Bypass Filter
Safty Valve

Lub. Oil Thermostat Valve Lubrictaing Oil

Priming Pump

H.T. : High Temperature

L.T. : Low Temperature

DE-18 Z 11-12
 CHAPTER
機関断面図 0
ITEM
ENGINE SECTION DE-18 2

Intake Valve / Exhaust Valve

Exhaust Manifold Rocker Arm
Cylinder Head
Piston
Fuel Oil High Pressure Block
Fuel Oil Injection Pump
Cylinder Liner
Connecting Rod

Valve Operating Device

Intake Duct
Cam Shaft
Cranck Pin Bearing
Engine Frame
Cranck Shaft
Side Bolt

Balance Weight Main Bearing Bolt

Fuel Oil High Pressure Block

Turbocharger Starting Valve Fuel Oil Injection Pump

Governor
Air Cooler
Gauge Board

Starting Air
Cam Gear Rotary Valve

Idle Gear
Cranck Shaft
Cranck Gear
Main Bearing

Auxiliary Device Thrust Bearing

Driving Gear

DE-18 Z 11-12
CHAPTER
1 NOx
 

ITEM
1-1,1-2 DE-18 ENGINE CONFORMING TO NOx TECHNICAL CODE

1-1 NOｘテクニカルコード適合機関 1-1 Conforming to NOx Technical Code

1-1.1 概要 1-1.1 Outline

(1 ) MARPOL73／78条約の付属書Ⅵ 「船舶か (1) The marine diesel engine to which the 13th
らの大気汚染防止のための規則」の第13規則 rule “ Nitrogen Oxides (Nox)Secondary
「窒素酸化物（NOｘ）二次規制」が適用され Regulations” in supplement VI “Rules to Prevent
る舶用ディーゼルエンジンは、NOｘテクニカ Air Pollution by Ships” to MARPOL73/78 Treaty
ルコードに適合する必要があります。 applies should conform to Nox Technical Code.

(2)NOｘテクニカルコード適合機関は、エン (2) The engine conforming to Nox Technical Code

ジングループまたはエンジンファミリーと are authorized as engine group or an engine fami-
して認定をうけており、船上でのNOｘ排出 ly, and it is allowed to apply the engine parameter
量確認検査は、エンジンパラメータチェック check method to them, when receiving the Nox
法を適用することができます。 discharge inspection on board.
エンジンパラメータチェック法とは、エン The engine parameter check method is a method
ジン構成部品、設定値がテクニカルファイ for verifying that the engine components and set-
ル記載事項を満足していることを検証する ting values conform to the requirements specified
方法であり、NOｘ排出量の計測を行う必要 in the technical file, and does not require the
はありません。テクニカルファイル記載事項 measurement of Nox discharge. To the engines
を満足していない場合は、エンジンパラメータ that are not conforming to the requirements of the
チェック法を適用することができず、NOｘ排 technical file, the engine parameter check method
出量計測が必要となります。 cannot be applied. For such engine, the measure-
ment of Nox discharge shall be required.

1-1.2 規定対象部品 1-1.2 The parts to be Specified

テクニカルファイルには、NOｘテクニカルコ The technical file states the engine components

ードに規定されたNOｘ排出量に影響を及ぼすエ that can affect the Nox discharge specified in Nox
ンジン構成部品とその部品の識別刻印が記載され Technical Code, and shows the identification
ており、エンジンごとにテクニカルファイルの保 marks stamped on them, and the user is required
管が義務付けられています。テクニカルファイル to maintain the technical file for each engine.
に記載の部品を交換するときは、必ず識別刻印の When replacing any parts shown in the technical
ある弊社純正部品をご使用ください。万一、識別刻 file, be sure to use our genuine parts stamped
印のない部品が使用されている場合は、テクニカル with the identification marks. In the case that
ファイル記載事項の不適合となり、エンジンパラメ any parts without the identification mark is used, it
ータチェック法による検査は適用できません。 shall be regarded as nonconformance to the
requirements of the technical file, and in such a
case, inspection by engine parameter check
method cannot be applied.

DE-18 Z 11-12
 CHAPTER
NOx
 
 1
ITEM
ENGINE CONFORMING TO NOx TECHNICAL CODE DE-18 1.2

テクニカルファイルに記載されている識別刻印 The followings are the parts that have the identifi-
のある部品は、以下の通りです。部品交換時には cation marks specified in the technical file. When
識別刻印を確認の上、ご使用ください replacing any of these parts, be sure to check
identification marks.

（ ：「テクニカルファイル」） ( :“Technical file “)

《識別刻印付部品》 <parts with identification marks>

1. シリンダヘッド 1. Cylinder head
2. ピストン 2. Piston
3. 過給機 3. Turbocharger
4. 空気冷却器 4. Air cooler
5. 燃料カム 5. Fuel cam
6. 燃料噴射ポンプ 6. Fuel injection pump
7. 燃料噴射ポンププランジャ 7. Fuel injection pump plunger
8. 燃料噴射弁 8. Fuel injection valve
9. 燃料噴射弁ノズル 9. Fuel injection valve nozzle

DE-18 Z 11-12
CHAPTER
2 オイルパン
ITEM

0 DE-18 OIL PAN

505 505, 507

502 501

P Q

500

1 2 3, 511 4

504, 508

506, 512 506, 512

503, 509, 510 503, 509, 510 506, 512

View "P" View "Q"

DE-18 Z 12-11
 CHAPTER
オイルパン 2
ITEM
OIL PAN DE-18 0

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

1 06757-001 オイルパン OIL PAN 1

2 06757-002 ケンユボウ LEVEL GAUGE 1
3 06757-003 セッシュ JOINT 1
4 06757-004 ゲージカン GAUGE PIPE 1

500 X200012030ZZ ボルト BOLT 34

501 X200012045ZZ ボルト BOLT 8
502 X200012055ZZ ボルト BOLT 6
503 X200016035ZZ ボルト BOLT 8
504 X200112025ZZ ボルト 2

505 X220012000ZZ ナット NUT 14

506 X570010000ZZ ロッカクプラグ HEX.PLUG 3
507 Z300012000ZZ ヒラザガネ FLAT WASHER 8
508 Z321016055DZ ハリガネ WIRE 1
509 Z506308000AZ 10Kパッキン 10K GASKET 2

510 Z507307700ZZ 10Kフランジトク 10K SPECIAL FLANGE 2

511 Z565001700EE マルパッキン GASKET 1
512 Z565003400EE マルパッキン GASKET 3

DE-18 A 15-08
CHAPTER
2 架構
ITEM

1 DE-18 ENGINE FRAME

513
523 515
525
24 503
25 519 14
518 520 26
513 503
501 523 510
510 529 526
529 505
503 514
516 524
504 514
516 506 524

502 901
4
510 5
529 13 27 P
526 6 507 23
526
28 1
29 509
12 526
24 508
25 517
22
8 509
11

521

527 7 16 9 511
10 512
522 516

A
526 A

528
View "P" Section "A-A"

DE-18 A 17-04
 CHAPTER
架構 2
ITEM
ENGINE FRAME DE-18 1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06422-003 アブラキリフタASSY ASSY. OIL CUT COVER 1

1 06422-001 カコウ FRAME 1

4 06422-004 フタ COVER 1
5 06422-005 フタ COVER 1
6 06422-006 ボルト BOLT 24
7 06422-007 ボルト BOLT 14

8 06422-008 ボルト BOLT 14

9 06422-009 キャップ CAP 6
10 06422-010 キャップ CAP 1
11 06422-011 キャップ CAP 14
12 06422-012 タイミングギヤ TIMING GEAR 1

13 06422-013 ブラケット BRACKET 1

14 06422-014 ガスケット GASKET 2
16 06435-016 マルナット CIRCULAR NUT 14

22 00002-008 マルナット CIRCULAR NUT 14

23 00002-035 ダンツキピン STEPPED PIN 6
24 00239-012 プラグ PLUG 2
25 00239-025 マルパッキン GASKET 2

26 E200250280 キュウキカンフタ INTAKE MANIFOLD COVER 2

27 E200250230 SAカンレンラクカン S.A.PIPING BYPASS 6
28 E365600320 プラグ PLUG 1
29 E365600340 マルパッキン GASKET 1

501 X200010155ZZ ボルト BOLT 2

502 X200010045ZZ ボルト BOLT 2
503 X200012025ZZ ボルト BOLT 38
504 X200012030ZZ ボルト BOLT 8
505 X345012032ZZ リーマボルト REAMER BOLT 1

506 X341010030ZZ ノックボルトASSY ASSY. KNOCK BOLT 2

507 X200012040ZZ ボルト BOLT 3
508 X200112035ZZ ボルト BOLT 1
509 X210012054ZZ スタッド STUD 64
510 X220010000ZZ ナット NUT 5

DE-18 Z 11-12
CHAPTER
2 架構
ITEM

1 DE-18 ENGINE FRAME

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

511 X220012000ZZ ナット NUT 2

512 X340016050ZZ ノックボルト KNOCK BOLT 2
513 X570002000ZZ ロッカクプラグ HEX.PLUG 8
514 X570003000ZZ ロッカクプラグ HEX.PLUG 6
515 X570004000ZZ ロッカクプラグ HEX.PLUG 2

516 Z300012000ZZ ヒラザガネ FLAT WASHER 24

517 Z321016020ZZ ハリガネ WIRE 1
518 Z335610020ZZ ヘイコウピン STRAIGHT PIN 1
519 Z501305000AZ JISパッキン JIS GASKET 2
520 Z503305000ZZ JISフランジトク JIS SPECIAL FLANGE 2

521 Z560102635ZZ Oリング O-RING 14

522 Z560103235ZZ Oリング O-RING 24
523 Z565001300EE マルパッキン GASKET 8
524 Z565001700EE マルパッキン GASKET 6
525 Z565002100EE マルパッキン GASKET 2

526 Z571503000ZZ テーパプラグ TAPER PLUG 30

527 X205020070ZZ HTボルト HT BOLT 16
528 Z571502000ZZ テーパプラグ TAPER PLUG 6
529 Z300010000ZZ ヒラザガネ FLAT WASHER 10

DE-18 Z 11-12
 CHAPTER
メモ 2
ITEM
MEMO DE-18
CHAPTER
2 架構側蓋（発電機関）
ITEM

2.1 DE-18 ENGINE SIDE COVER (GENERATOR ENGINE)

502
5 503 4 11

P
HQT
6GUVGF

* DKDDKIG
KIIGT
KKIG
IG CWPJWDGTI
GTI 

2 A
1 11

504 6
505

13
501

12

Section "P-P" Section "Q-Q"

DE-18 A 12-11
 CHAPTER
架構側蓋（発電機関） 2
ITEM
ENGINE SIDE COVER (GENERATOR ENGINE) DE-18 2.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

A Ref.2-3 架構安全弁 ASSY. CRANK CASE SAFETY VALVE 2

1 06455-001 カバー COVER 10

2 06455-002 カバー COVER 2
3 06455-003 Oリング O-RING 12
4 06455-004 カバー COVER 2
5 06455-005 カバー COVER 1

6 06455-006 ガスケット GASKET 2

11 00048-009 ナット NUT 64

12 00035-010 ガスケット GASKET 2
13 06109-007 シール SEAL 8

501 X200008070ZZ ボルト BOLT 8

502 X200012030ZZ ボルト BOLT 4
503 X200012120ZZ ボルト BOLT 4
504 X220008000ZZ ナット NUT 8
505 Z300108000ZZ ヒラザガネ FLAT WASHER 8

DE-18 A 12-11
CHAPTER
2 架構側蓋（主機関）
ITEM

2.2 DE-18 ENGINE SIDE COVER (PROPULSION ENGINE)

4 5 6 6 5 4
4

11
B
502, 503

T 2
2 A

B C

A C
11

6 (4)

(2)
3
13, 500
(2)
504, 505
504, 505
19

13, 501
Section "B-B"

7
A
12
12

Section "A-A" Section "C-C"

DE-18 Z 12-11
 CHAPTER
架構側蓋（主機関） 2
ITEM
ENGINE SIDE COVER (PROPULSION ENGINE) DE-18 2.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

A Ref. 2-3 カコウアンゼンベン ASSY.: CRANKCASE SAFETY VALVE 2

1 06455-001 サイドカバー COVER: SIDE 9

2 06455-002 サイドカバー：アンゼンベン COVER: SIDE: SAFETY VALVE 3
3 06455-003 Oリング：サイドカバー O-RING: SIDE COVER 12
4 06455-004 カバー：カムジク COVER: CAMSHAFT 2
5 06455-005 カバー２：カムギヤ COVER 2: CAM GEAR 1

6 06455-006 ガスケット：カムジクカバー GASKET: CAMSHAFT COVER 2

7 06455-007 ＬＯホキュウクチ CHARGE PORT: L.O.CHARGE PORT 1
11 00048-009 ザツキナット NUT: FLANGE 64
12 00035-010 ガスケット GASKET 3
13 06109-007 シールワッシャ SEAL: WASHER 12

19 00680-019 タンクキャップ CAP: TANK 1

500 X200008035ZZ ボルト BOLT 4

501 X200008070ZZ ボルト BOLT 8
502 X200012030ZZ ボルト BOLT 4
503 X200012120ZZ ボルト BOLT 4
504 X220008000ZZ ナット NUT 12

505 Z300108000ZZ ヒラザガネ: FLAT WASHER 4

DE-18 Z 12-11
CHAPTER
2 架構安全弁
ITEM

3 DE-18 ENGINE FRAME SAFETY VALVE

76

72

7
901
73

77
81
78

70
71

75
14

74 69

DE-18 Z 11-12
 CHAPTER
架構安全弁 2
ITEM
ENGINE FRAME SAFETY VALVE DE-18 3

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity
901 05900-066 カコウアンゼンベンASSY ASSY. CRANKCASE SAFETY VALVE 2

7 05900-007 プレート PLATE 2

14 05900-014 メイバン NAME PLATE 2
69 05900-069 シート SEAT 2
70 05900-070 ボルト BOLT 2
71 05900-071 ボルト BOLT 2

72 05900-072 ディスタンス DISTANCE PIECE 8

73 05900-073 バネ SPRING 2
74 05900-074 フィルター FILTER 2
75 05900-075 フィルター FILTER 6
76 05900-076 プレート PLATE 2

77 05900-077 バネザガネ SPRING WASHER 4

78 05900-078 ナット NUT 4

81 00035-011 Oリング O-RING 2

DE-18 Z 11-12
CHAPTER
2 ギヤケース
ITEM

4 DE-18 GEAR CASE

516
505 517 11
518 12
505

Section "A-A"
509 510
12 1

3 A A
502
P 501
520
521
2
514
515
519

503 511

505
504 512 508 506
513 507

Q
522

11
13

View "Q"

View "P"

DE-18 A 17-04
 CHAPTER
ギヤケース 2
ITEM
GEAR CASE DE-18 4

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06492-001 ギヤケース GEAR CASE 1

2 06492-002 ボルト BOLT 11
3 06492-003 ボルト BOLT 2

11 00239-012 プラグ PLUG 2

12 00239-013 ワンガタプラグ PLUG 8
13 00239-025 マルパッキン GASKET 2

501 X205016045ZZ HTボルト HT BOLT 7

502 X205012035ZZ HTボルト HT BOLT 3
503 X200012040ZZ ボルト BOLT 6
504 X200012050ZZ ボルト BOLT 6
505 H150103400 ワンガタ プラグ PLUG 3

506 E203150120 メクラフタ COVER 1

507 E203150130 ガスケット GASKET 1
508 X200012020ZZ ボルト BOLT 6
509 X210012048ZZ スタッド STUD 8
510 X210012105ZZ スタッド STUD 4

511 X210016056ZZ スタッド STUD 2

512 X570010000ZZ ロッカクプラグ HEX. PLUG 1
513 Z565003400EE マルパッキン GASKET 1
514 X570010000ZZ ロッカクプラグ HEX. PLUG 1
515 Z565003400EE マルパッキン GASKET 1

516 Z500206000ZZ JISフランジ JIS FLANGE 1

517 Z501206000AZ JISパッキン JIS GASKET 1
518 X200012030ZZ ボルト BOLT 4
519 Z571501000ZZ テーパプラグ TAPER PLUG 1
520 X570004000ZZ ロッカクプラグ HEX. PLUG 1

521 Z565002100EE マルパッキン GASKET 1

522 Z335016045ZZ ヘイコウピン STRAIGHT PIN 2

DE-18 Z 11-12
CHAPTER
2 補機駆動ギヤ
ITEM

5 DE-18 AUX. MACHINERY GEAR

1
3

501

DE-18 Z 11-12
 CHAPTER
補機駆動ギヤ 2
ITEM
AUX. MACHINERY GEAR DE-18 5
(1) 900,1000 min-1 (2) 720,750 min-1

番号 パーツコード 部品名称 Name of Parts 数量Quantity

Number Parts Code (1) (2)

1 06546-001 ホキクドウギヤ AUX.MACHINERY GEAR 1

2 06546-002 ボルト BOLT 4 4
3 06546-003 ホキクドウギヤ AUX.MACHINERY GEAR 1

501 Z321016050ZZ ハリガネ WIRE 1 1

DE-18 Z 11-12
CHAPTER
2 アイドルギア
ITEM

6 DE-18 IDLE GEAR

501

DE-18 Z 11-12
 CHAPTER
アイドルギア 2
ITEM
IDLE GEAR DE-18 6

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06458-001 アイドルギヤ IDLE GEAR 1

3 06458-003 ブッシュ BUSH 1
4 06458-004 ジク SHAFT 1
5 06458-005 オサエ CLAMP 1
6 06458-006 ボルト BOLT 9

501 Z321016050ZZ ハリガネ WIRE 1

DE-18 Z 11-12
CHAPTER
2 クランク軸
ITEM

7 DE-18 CRANK SHAFT

901

501

2 A

1
4

Section A-A

DE-18 Z 11-12
 CHAPTER
クランク軸 2
ITEM
CRANK SHAFT DE-18 7

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06421-003 クランクジクASSY ASSY. CRANK SHAFT 1

1 06421-001 クランクジク CRANK SHAFT 1

2 06421-002 クランクギヤ CRANK GEAR 1
4 06421-004 ダンツキピン STEPPED PIN 12

501 X251514016ZZ トメネジ SET SCREW 6

DE-18 Z 11-12
CHAPTER
2 バランスウエイト
ITEM

8 DE-18 BALANCE WEIGHT

B
A

A B
3 501

1
4

2
5
Section "A-A" Section "B-B"

DE-18 Z 11-12
 CHAPTER
バランスウエイト 2
ITEM
BALANCE WEIGHT DE-18 8
慣性モーメント / Moment of inertia (1)I=9.52 X1 / I=9.85 X11 (2)I=8.74 X1 / I=9.06 X11
番号 パーツコード 部品名称 Name of Parts 数量Quantity
Number Parts Code (1) (2)

1 06485-001 バランスウェイト BALANCE WEIGHT 1

2 06485-002 バランスウェイト BALANCE WEIGHT 11
3 06485-003 ボルト BOLT 24 24
4 06485-004 バランスウェイト BALANCE WEIGHT 1
5 06485-005 バランスウェイト BALANCE WEIGHT 11

501 Z321023050ZZ ハリガネ WIRE 12 12

DE-18 Z 11-12
CHAPTER
2 主軸受
ITEM

9 DE-18 MAIN BEARING

1 2

501

View "P"

DE-18 Z 11-12
 CHAPTER
主軸受 2
ITEM
MAIN BEARING DE-18 9

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06460-001 シュジクウケ MAIN BEARING 7

2 06460-002 ジクウケ BEARING 2

501 Z335008016ZZ ヘイコウピン STRAIGHT PIN 2

DE-18 Z 11-12
CHAPTER
2 フライホイール
ITEM

10.1 DE-18 FLYWHEEL

5
1
501

DE-18 Z 11-12
 CHAPTER
フライホイール 2
ITEM
FLYWHEEL DE-18 10.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

1 06559-001 フライホイール FLYWHEEL 1

3 06559-003 リーマボルト REAMER BOLT 10
4 06559-004 Uナット U-NUT 20
5 06559-005 シシン LOAD POINTER 1

501 X200012016ZZ ボルト BOLT 2

DE-18 A 14-04
CHAPTER
2 フライホイール-２
ITEM

10.2 DE-18 FLYWHEEL-2

501 5

10

DE-18 Z 14-01
 CHAPTER
フライホイール-２ 2
ITEM
FLYWHEEL-2 DE-18 10.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity
4 06559-004 Uナット U-NUT 20
5 06559-005 シシン LOAD POINTER 1
8 06559-001 フライホイール FLYWHEEL 1
9 06559-009 リーマボルト REAMER BOLT 10
10 06559-010 ボルト BOLT 10

501 X200012016ZZ ボルト BOLT 2

DE-18 Z 14-01
CHAPTER
2 シリンダライナ
ITEM

11 DE-18 CYLINDER LINER

501

DE-18 Z 11-12
 CHAPTER
シリンダライナ 2
ITEM
CYLINDER LINER DE-18 11

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

4 06444-004 シリンダライナ CYLINDER LINER 1

5 06444-005 プロテクトリング PROTECT RING 1
6 06444-006 Oリング O-RING 1

501 Z560221057ZZ Oリング O-RING 3

( /CYL. )

DE-18 Z 11-12
CHAPTER
2 ピストン（一体）
ITEM

12.1 DE-18 MONO BLOCK PISTON

22
21
2

902 501

901

Detail "A"

DE-18 Z 11-12
 CHAPTER
ピストン（一体） 2
ITEM
MONO BLOCK PISTON DE-18 12.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06521-001 ピストンASSY ASSY. PISTON 1

902 06521-007 ピストンピンASSY ASSY. PISTON PIN 1

2 06521-002 ピストン PISTON 1

3 06521-003 ピストンリング PISTON RING 1
4 06521-004 ピストンリング PISTON RING 1
5 06521-005 ピストンリング PISTON RING 1
6 06521-006 オイルリング OIL RING 1

8 06521-008 ピストンピン PISTON PIN 1

9 06521-009 スナップリング SNAP RING 2

21 00039-008 ケーニックエキスパンダ KOENIC EXPANDER 1

22 00039-010 プラグ PLUG 1

501 X251208008ZZ トメネジ SET SCREW 2

( /CYL. )

DE-18 Z 11-12
CHAPTER
2 ピストン（分割）
ITEM

12.2 DE-18 BUILD UP PISTON

903

503 502 14 13 15 12 11

9
21

902

Detail "A"

DE-18 Z 11-12
 CHAPTER
ピストン（分割） 2
ITEM
BUILD UP PISTON DE-18 12.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

902 06521-007 ピストンピンASSY ASSY. PISTON PIN 1

903 06521-010 ピストンASSY ASSY. PISTON 1

3 06521-003 ピストンリング PISTON RING 1

4 06521-004 ピストンリング PISTON RING 1
5 06521-005 ピストンリング PISTON RING 1
6 06521-006 オイルリング OIL RING 1
8 06521-008 ピストンピン PISTON PIN 1

9 06521-009 スナップリング SNAP RING 2

11 06521-011 ピストンクラウン PISTON CROWN 1
12 06521-012 ピストンタイ PISTON BODY 1
13 06521-013 ボルト BOLT 1
14 06521-014 ナット NUT 1

15 06521-015 ディスタンス DISTANCE PIECE 1

21 00039-008 ケーニックエキスパンダ KOENIC EXPANDER 1

502 Z415006020ZZ スプリングピン SPRING PIN 1

503 Z560214531DZ Oリング O-RING 1
( /CYL. )

DE-18 Z 11-12
CHAPTER
2 連接棒
ITEM

13 DE-18 CONNECTING ROD

903

901

3 1 14
12 22
13

501 21 502

DE-18 A 16-04
 CHAPTER
連接棒 2
ITEM
CONNECTING ROD DE-18 13

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 06445-004 レンセツボウASSY ASSY. CONNECTING ROD 1

903 06445-006 ジクウケASSY ASSY. BEARING 1

1 06445-001 レンセツボウ CONNECTING ROD 1

3 06445-003 ブッシュ BUSH 1
12 06445-012 ボルト BOLT 2
13 06445-013 ボルト BOLT 4
14 06445-014 ネジ 2

21 00002-004 ピン PIN 2
22 00002-008 マルナット CIRCULAR NUT 2

501 Z321016025ZZ ハリガネ WIRE 2

502 Z335006016ZZ ヘイコウピン STRAIGHT PIN 1
( /CYL. )

DE-18 A 16-04
CHAPTER
2 シリンダヘッド
ITEM

14 DE-18 CYLINDER HEAD

22 510
9
23 506 26
502

509
501 Section "A-A"
Section "D-D" 509
2 25

501
24
P
D A
D 505
503 A
510
504

512

16
17
901

C
507
13
21 12 508

14
510 511
5 3

4
7

8
11
6
10
15 C
View "P" Section "C-C"

DE-18 Z 11-12
 CHAPTER
シリンダヘッド 2
ITEM
CYLINDER HEAD DE-18 14

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 06435-001 シリンダヘッドASSY ASSY. CYLINDER HEAD 1

2 06435-002 シリンダヘッド CYLINDER HEAD 2

3 06435-003 シート SEAT 2
4 06435-004 シート SEAT 2
5 06435-005 ガイド GUIDE 2
6 06435-006 ガイド GUIDE 2

7 06435-007 シール SEAL 2

8 06435-008 シール SEAL 2
9 06435-009 ガイド GUIDE 1
10 06435-010 Oリング O-RING 2
11 06435-011 Oリング O-RING 2

12 06435-012 スリーブ SLEEVE 1

13 06435-013 Oリング O-RING 2
14 06435-014 ガスケット GASKET 1
15 06435-015 ガスケット GASKET 1
16 06435-016 マルナット CIRCULAR NUT 4

17 06435-017 キャップ CAP 4

21 00002-034 スタッド STUD 3

22 00024-003 ガイド GUIDE 2
23 00024-016 プラグ PLUG 5
24 00024-010 スタッド STUD 2
25 00071-006 ネジ SCREW 1

26 00239-021 スタッド STUD 2

501 E205650210Z ワンガタプラグ PLUG 7

502 E205650300Z Oリング O-RING 1
503 H150103390Z ワンガタプラグ PLUG 3
504 X210012052ZZ スタッド STUD 2
505 Z336008030ZZ ダンツキピン STEPPED PIN 1

506 Z412004800ZZ スナップリング SNAP RING 1

507 Z412005200ZZ スナップリング SNAP RING 1

DE-18 A 16-04
CHAPTER
2 シリンダヘッド
ITEM

14 DE-18 CYLINDER HEAD

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

508 Z560102235ZZ Oリング O-RING 1

509 Z571501000ZZ テーパプラグ TAPER PLUG 5
510 Z571502000ZZ テーパプラグ TAPER PLUG 5

511 Z571503000ZZ テーパプラグ TAPER PLUG 1

512 X210012030ZZ スタッド STUD 2
( /CYL. )

DE-18 Z 11-12
 CHAPTER
メモ 2
ITEM
MEMO DE-18
CHAPTER
2 シリンダヘッドカバー
ITEM

15.1 DE-18 CYLINDER HEAD COVER

501
11

12

DE-18 A 12-11
 CHAPTER
シリンダヘッドカバー 2
ITEM
CYLINDER HEAD COVER DE-18 15.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

1 06449-002 カバー COVER 1

2 06449-003 シール SEAL 1
11 00072-002 ノブ KNOB 1
12 00072-003 ジク SHAFT 1

501 Z415004024ZZ スプリングピン SPRING PIN 1

( /CYL. )

DE-18 B 15-08
CHAPTER
2 シリンダヘッドカバー（点検窓付き）
ITEM

15.2 DE-18 CYLINDER HEAD COVER ( WITH INSPECTION WINDOW )

16 17 19
500
502
18

12 501 Section "A-A"

13

DE-18 Z 12-11
 CHAPTER
シリンダヘッドカバー（点検窓付き） 2
ITEM
CYLINDER HEAD COVER ( WITH INSPECTION WINDOW ) DE-18 15.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06449-004 シリンダヘッドカバー：マド COVER: CYLINDER HEAD: WINDOW 1

3 06449-003 シール：シリンダヘッドカバー SEAL: CYLINDER HEAD COVER 1

5 06449-005 シリンダヘッドカバー：マド COVER: CYLINDER HEAD: WINDOW 1
12 00072-002 ノブ：シリンダヘッドカバー KNOB: CYLINDER HEAD COVER 1
13 00072-003 ジク：ハンドル SHAFT: HANDLE 1
16 00072-006 キャップ：シリンダヘッドカバー CAP: CYLINDER HEAD COVER 1

17 00072-007 オサエ：テンケンマド CLAMP: INSPECTION PORT 1

18 00072-008 スペーサ：オサエ DISTANCE PIECES: CLAMP 1
19 00072-009 チョウナット WING NUT 1

500 X210010040ZZ スタッド STUD 1

501 Z415004024ZZ スプリングピン SPRING PIN 1
502 Z560209031ZZ Oリング O-RING 1

DE-18 Z 12-11
CHAPTER
2 吸気弁
ITEM

16 DE-18 INTAKE VALVE

901
901

11

14
4
15

13

12

16

DE-18 Z 11-12
 CHAPTER
吸気弁 2
ITEM
INTAKE VALVE DE-18 16

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 06446-002 バルブローテータASSY ASSY. VALVE ROTATOR 2

1 06446-001 キュウキベン INTAKE VALVE 2

3 06446-003 コッタ VALVE COTTER 2
4 06446-004 バネ SPRING 2

11 タイ BODY 1
12 スリーブ SLEEVE 1
13 サラバネ CONED DISC SPRING 1
14 バネ SPRING 6
15 ボール BALL 6

16 サークリップ CIRCLIP 1
( /CYL. )

DE-18 A 15-08
CHAPTER
2 排気弁
ITEM

17 DE-18 EXHAUST VALVE

17

901

901

11

18
14

15

13

12
1
16

DE-18 Z 11-12
 CHAPTER
排気弁 2
ITEM
EXHAUST VALVE DE-18 17

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 06446-002 バルブローテータASSY ASSY. VALVE ROTATOR 2

1 06447-001 ハイキベン EXHAUST VALVE 2

11 タイ BODY 1
12 スリーブ SLEEVE 1
13 サラバネ CONED DISC SPRING 1
14 バネ SPRING 6
15 ボール BALL 6

16 サークリップ CIRCLIP 1

17 06446-003 コッタ VALVE COTTER 2

18 06446-004 バネ SPRING 2
( /CYL. )

DE-18 A 15-08
CHAPTER
2 起動弁
ITEM

18 DE-18 STARTING VALVE

901

4 2 6 5 11 501

503 502 504 3

DE-18 Z 11-12
 CHAPTER
起動弁 2
ITEM
STARTING VALVE DE-18 18

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06470-001 キドウベンASSY ASSY. STARTING VALVE 1

2 06470-002 タイ BODY 1
3 06470-003 フタ COVER 1
4 06470-004 ジク SHAFT 1
5 06470-005 ピストン PISTON 1
6 06470-006 バネ SPRING 1

11 00881-010 Uナット U-NUT 1

501 X205012065ZZ HTボルト HT BOLT 2

502 Z560103435ZZ Oリング O-RING 1
503 Z665030000CD マルパッキン GASKET 1
504 Z665034000ZZ マルパッキン GASKET 1
( /CYL. )

DE-18 Z 11-12
CHAPTER
2 カム軸
ITEM

19 DE-18 CAM SHAFT

901

3 6

2
501

11 502

12 13 5

DE-18 Z 11-12
 CHAPTER
カム軸 2
ITEM
CAM SHAFT DE-18 19

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06464-004 カムジクASSY ASSY. CAM SHAFT 1

1 06464-001 カムギヤ CAM GEAR 1

2 06464-002 ボルト BOLT 12
3 06464-003 ジク SHAFT 1
5 06464-005 カムジク CAM SHAFT 1
6 06464-006 カムジク CAM SHAFT 1

11 00006-005 リーマボルト BOLT 1

12 00006-006 ボルト BOLT 11
13 00006-007 ナット NUT 12

501 Z321012100DZ ハリガネ WIRE 1

502 Z336008030ZZ ダンツキピン STEPPED PIN 1

DE-18 Z 11-12
CHAPTER
2 カム軸受
ITEM

20 DE-18 CAM SHAFT BEARING

502 8

506 6 14 2 1

901
Front Side

501 505

13

Rear Side

DE-18 C 17-04
 CHAPTER
カム軸受 2
ITEM
CAM SHAFT BEARING DE-18 20

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 06502-007 カムジクメタルダイＡＳＳＹ ASSY. CAMSHAFT BEARING MOUNT 1

1 06502-001 カムジクウケ BEARING: WALL: CAMSHAFT 6

2 06502-002 カムジクウケ：フロント BEARING: FRONT: CAMSHAFT 1
6 06502-006 カムジクメタルダイ MOUNT: CAMSHAFT BEARING 1
8 06502-008 カムジクガスケット GASKET: CAMSHAFT 1
9 06502-009 カムジクスラストメタルダイ：ギャクテン MOUNT: CAMSHAFT THRUST BEARING: REVERSE 1

13 06562-003 カムジクスラストメタル THRUST METAL: CAMSHAFT 1

14 00043-004 カムジクウケ(1) BEARING-1: CAMSHAFT 1

501 X200010030ZZ ボルト BOLT 6

502 X200012035ZZ ボルト BOLT 4
505 Z335506014ZZ ヘイコウピン STRAIGHT PIN 1
506 Z415006026ZZ スプリングピン SPRING PIN 2

DE-18 C 17-04
CHAPTER
2 吸・排気タペット
ITEM

21 DE-18 INTAKE & EXHAUST TAPPET

904
905
15
13 16
14
501

5
11
502

903

6 12

7 4 503

902

901

View "P"

DE-18 Z 11-12
 CHAPTER
吸・排気タペット 2
ITEM
INTAKE & EXHAUST TAPPET DE-18 21

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06451-001 スイングアーム＆ジクASSY ASSY. SWING ARM&SHAFT 1

902 06451-002 スイングアームASSY ASSY. SWING ARM 1
903 06451-003 スイングアームジクASSY ASSY. SWING ARM SHAFT 1
904 00055-008 ピンASSY ASSY. PIN 1
905 00055-013 タペットローラASSY ASSY. TAPPET ROLLER 1

4 06451-004 スイングアーム SWING ARM 2

5 06451-005 ジク SHAFT 1
6 06451-006 プッシュロッド PUSH ROD 2
7 06451-007 シート SEAT 2

8 00055-001 リングノック RING KNOCK 2

9 00055-002 ボルト BOLT 2
10 00055-003 タペットローラ TAPPET ROLLER 1
11 00055-004 ブッシュ BUSH 1
13 00055-011 ピン PIN 1

14 00055-012 ケーニックエキスパンダー KOENIC EXPANDER 1

501 Z411004000ZZ スナップリング SNAP RING 2

502 Z571501000ZZ テーパプラグ TAPER PLUG 2
503 X251206006ZZ トメネジ SET SCREW 1
( /CYL. )

DE-18 Z 11-12
CHAPTER
2 弁腕
ITEM

22 DE-18 ROCKER ARM

901

506 904

15

13
12 902
10
24
8

903, 904 906 903

Detail "A"
9 505 905
503 11
14
504
903, 904
A
504
22 21

502 501

23 905
17 16
902

DE-18 Z 11-12
 CHAPTER
弁腕 2
ITEM
ROCKER ARM DE-18 22

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06450-001 ホルダASSY ASSY. HOLDER 1

902 06450-002 ベンオサエティASSY ASSY. T.VALVE YOKE 2
903 06450-003 ベンワンASSY ASSY. VALVE ROCKER ARM 1
904 06450-004 ベンワンASSY ASSY. VALVE ROCKER ARM 1
905 06450-005 ベンワンジクホルダASSY ASSY. ROCKER ARM SHAFT HOLDER 1

906 06450-006 ベンワンジクASSY ASSY. ROCKER ARM SHAFT 1

7 06450-007 ベンオサエティ T.VALVE YOKE 2

8 06450-008 ロッカーアーム ROCKER ARM 1
9 06450-009 ジク SHAFT 1
10 06450-010 ブッシュ BUSH 2
11 06450-011 ネジ SCREW 2

12 06450-012 キャップ CAP 2

13 06450-013 クリップ CLIP 2
14 06450-014 スタッド STUD 1
15 06450-015 ロッカーアーム ROCKER ARM 1
16 06450-016 ホルダ HOLDER 1

17 06450-017 ネジ SCREW 1

21 06451-007 シート SEAT 2

22 00071-005 ネジ SCREW 2
23 E205950120 カナグ RETAINER 2
24 E205950140 シート SEAT 2

501 X220016000ZZ ナット NUT 3

502 X220814000ZZ ナット NUT 2
503 X220816000ZZ ナット NUT 2
504 X251206006ZZ トメネジ SET SCREW 4
505 X251210012ZZ トメネジ SET SCREW 1

506 Z411004500ZZ スナップリング SNAP RING 2

( /CYL. )

DE-18 Z 11-12
CHAPTER

ITEM
2 燃料噴射ポンプ
23 DE-18 FUEL OIL INJECTION PUMP

503

ೞශ૏⟎
M a r k p o si ti o n

231
224
210 273
230
272
216 504
215
275
266 280
267
268 261
236 235
260
255

265

291
292 246 285
293
247
245

241
250 240

ᵈ઀᭽ߦࠃࠅᄌᦝߔࠆ႐ว߇޽ࠆߚ߼‫ޔ‬ೞශࠍߏ⏕⹺ߩ਄‫ޔ‬ㇱຠⷐ᳞ߒߡߊߛߐ޿‫ޕ‬
Note) Different parts are used depending on the specifications.
Check the identification mark before ordering parts.

DE-18 Z 11-12
 CHAPTER

燃料噴射ポンプ ITEM
2
FUEL OIL INJECTION PUMP DE-18 23

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity
503 06457-001 ＦＯポンプ FO PUMP 1

210 06457-002 ハウジングポンプ HOUSING PUMP 1

215 00056-007 デフレクタ DEFLECTOR 2
216 E206452160 Oリング O-RING 2
224 E206452240 デリベリバルブＡＳＳＹ D.V.ASSY. 1
230 E206452300 Oリング O-RING 1

231 E206452310 ボルト BOLT 4

235 06457-004 バックアップリング BACK UP RING 2
236 E206452360 Oリング O-RING 3
240 06457-005 タペット TAPPET 1
241 00056-015 ピン PIN 1

245 00056-016 スプリングプランジャ SPRING PLUNGER 1

246 00056-017 スプリングシート SPRING SEAT 1
247 E206452470 スプリングシート SPRING SEAT 1
250 E206452500 プレート PLATE 1
255 E206452550 コントロールラック CONTROL RACK 1

260 E206452600 プラグ PLUG 1

261 E206452610 ガスケット GASKET 1
265 06457-006 コントロールスリーブ CONTROL SLEEVE 1
266 00056-022 ポインタ POINTER 1
267 00056-023 シム SHIM 1

268 00056-024 ボルト BOLT 1

272 E206452720 スプリングピン SPRING PIN 1
273 06457-003 バックアップリング BACK UP RING 2
275 E206452750 セットスクリュ SET SCREW 1
280 E206452800 ガスケット GASKET 1

285 00056-027 Ｏリング O-RING 1

291 00056-002 シム SHIM 2
292 00056-003 シム SHIM 1
293 00056-004 シム SHIM 1
504 E206455020 プランジャＡＳＳＹ PLUNGER ASSY. 1
(/CYL)
注記
Remarks
印部品の単体販売は不可。
Parts (Signal ) cannot be purchased by itself.

DE-18 A 14-04
CHAPTER
2 燃料噴射装置
ITEM

24.1 DE-18 FUEL OIL INJECTION DEVICE

504 8 A 11 505 3 5 6

14
503

P
506

502

501 1

13

12

View "P"

DE-18 Z 11-12
 CHAPTER
燃料噴射装置 2
ITEM
FUEL OIL INJECTION DEVICE DE-18 24.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

A Ref.2-24.2 ノズルホルダASSY ASSY. NOZZLE HOLDER 1

1 06473-001 ブロック BLOCK 1

2 06473-002 コネクタ CONNECTOR 1
3 06473-003 コネクタ CONNECTOR 1
4 06473-004 ジョイント JOINT 1
5 06473-005 ボルト BOLT 2

6 06473-006 ボルト BOLT 2

8 06473-008 オサエ CLAMP 1

11 00007-004 Oリング O-RING 1

12 00314-021 ボール BALL 1
13 E206250110 プラグ PLUG 1
14 E206250120 O リング O-RING 1

501 X251206006ZZ トメネジ SET SCREW 1

502 Z560203031DZ Oリング O-RING 1
503 Z560104635DZ Oリング O-RING 3
504 X220012000ZZ ナット NUT 2
505 Z560103235DZ Oリング O-RING 1

506 Z565001920ZZ マルパッキン GASKET 1

DE-18 Z 11-12
CHAPTER
2 ノズルホルダ
ITEM

24.2 DE-18 NOZZLE HOLDER

28
26

25

11
10 12

23
24

22
21
27

29

13 902

901

DE-18 Z 11-12
 CHAPTER
ノズルホルダ 2
ITEM
NOZZLE HOLDER DE-18 24.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06473-007 ノズルホルダASSY ASSY. NOZZLE HOLDER 1

902 06473-009 ノズルホルダASSY ASSY. NOZZLE HOLDER 1

10 06473-010 タイ BODY 1
11 06473-011 チョウセイネジ ADJUSTING SCREW 1
12 06473-012 インレットコネクタ INLET CONNECTOR 1
13 06473-013 ノズル NOZZLE 1

21 00007-010 ノズルダウエルピン NOZZLE DOWEL PIN 2

22 00007-011 プッシュロッド PUSH ROD 1
23 00007-012 スプリングシート SPRING SEAT 1
24 00007-013 ノズルスプリング NOZZLE SPRING 1
25 00007-015 ナット NUT 1

26 00007-016 ガスケット GASKET 2

27 00007-017 スペーサ DISTANCE PIECES 1
28 00007-018 キャップナット CAP NUT 1
29 00007-019 リテイニングナット RETAINING NUT 1

DE-18 Z 11-12
CHAPTER
2 コモンロッド
ITEM

25 DE-18 COMMON ROD

2
13
502, 505
A
513

515
503 512 516 516 512
504
510 504 16 17 510
32
C
D

B
1 508 15

500
514
509 12
506

14

511 501 19 Detail "D"

View "P"

20 20 12
18 18
22 22

21 507
507
Detail "A" Detail "B" Detail "C"

DE-18 Z 12-11
 CHAPTER
コモンロッド 2
ITEM
COMMON ROD DE-18 25
Type of Governor (1)････RHD or UG (2)････EAR20
番号 パーツコード 部品名称 Name of Parts 数量Quantity
Number Parts Code (1) (2)

1 06428-001 コモンロッド：6D COMMON ROD: 6D 1 1

2 06428-002 ブラケット（マエ）：コモンロッド BRACKET (FRONT): COMMON ROD 1 1
12 00042-002 コモンロッドジクウケ ２ BEARING: COMMON ROD 2 2
13 00042-003 ブラケット：コモンロッド BRACKET: COMMON ROD 1 1
14 00042-004 ラックレバ RACK LEVER 6 6

15 00042-005 ラックレバークラッチ CLUTCH: RACK LEVER 6 6

16 00042-006 ネジリバネホルダ HOLDER: RETURN SPRING 6 6
17 00042-007 ネジリバネ RETURN SPRING: 6 6
18 00042-008 ピン：ラックリンク PIN: RACK LINK 12 12
19 00042-009 ラックリンク RACK LINK: 6 6

20 00042-010 スフエリカルベアリング： プレイン BEARING: SPHERICAL PLAIN 12 12

21 00042-011 ディスタンス：リンクピン DISTANCE PIECE: LINK PIN 6 6
22 00042-012 ヒラザガネ FLAT WASHER: SPECIAL 12 12
32 E261680020 コモンロツドジクウケ（１） CONTROL ROD BEARING (1) 1

500 X200010035ZZ ボルト BOLT 6 6

501 X200012025ZZ ボルト BOLT 2 2
502 X200012045ZZ ボルト BOLT 2
503 X200012095ZZ ボルト BOLT 2 2
504 X200014030ZZ ボルト BOLT 4 4

505 X220012000ZZ ナット NUT 2

506 X220308000ZZ ナット NUT 6 6
507 X227006000ZZ Uナット U-NUT 12 12
508 X250108016ZZ ロッカクトメネジ HEX. SET SCREW 6 6
509 X250108030ZZ ロッカクトメネジ HEX. SET SCREW 6 6

510 Z315014000ZZ ハツキザガネ TOOTHED LOCK WASHER 4 4

511 Z335006018ZZ ヘイコウピン STRAIGHT PIN 2 2
512 Z412003700ZZ スナップリング SNAP RING HOLE 2 2
513 Z412004700ZZ スナップリング SNAP RING 1
514 Z415005040ZZ スプリングピン SPRING PIN 6 6

515 Z451460050ZZ ベアリング BEARING 1

516 Z458249040AZ ベアリング BEARING 2 2

DE-18 Z 12-11
CHAPTER
2 調速機取付(RHD)
ITEM

26.1 DE-18 GOVERNOR DRIVING(RHD)

506

508
21

26 511

515 25
28
502
509 22
29
516
1
518
505

30 504
31

2 3
513

4
7 503

DE-18 Z 11-12
 CHAPTER
調速機取付(RHD) 2
ITEM
GOVERNOR DRIVING(RHD) DE-18 26.1
機関回転数 / Engine Revolution Speed (1) 900min-1 (2) 720min-1
番号 パーツコード 部品名称 Name of Parts 数量Quantity
Number Parts Code (1) (2)

1 06500-001 ギヤケース GEAR CASE 1 1

2 06500-002 カップリング COPLING 1 1
3 06500-003 ボルト BOLT 4 4
4 06500-004 ギヤ GEAR 1
7 06500-007 ギヤ GEAR 1

21 00013-002 ダイ MOUNT 1 1
22 00013-003 ケース CASE 1
25 00013-010 ディスタンス DISTANCE 1
26 00013-012 カップリング COPLING 1 1

28 06496-003 ディスタンス DISTANCE 1

29 06496-004 ケース CASE 1
30 06496-006 ギヤ GEAR 1
31 06496-006 ギヤ GEAR 1

502 X200012045ZZ ボルト BOLT 4 4

503 X200012050ZZ ボルト BOLT 3 3
504 X200012120ZZ ボルト BOLT 2 2
505 X200012140ZZ ボルト BOLT 2 2
506 X210010063ZZ スタッド STUD 4 4

508 X220010000ZZ ナット NUT 4 4

509 X222322000ZZ コガタナット NUT 1 1
511 Z305022032ZZ トクシュヒラザガネ SPECIAL FLAT WASHER 1 1
513 Z321010200ZZ ハリガネ WIRE 1 1
515 Z330006032ZZ テーパピン TAPER PIN 1 1

516 Z335006025ZZ ヘイコウピン STRAIGHT PIN 2 2

518 Z451162050ZZ ベアリング BEARING 2 2

DE-18 Z 11-12
CHAPTER
2 調速機取付(UG)
ITEM

26.2 DE-18 GOVERNOR DRIVING(UG)

507
508
27
22
26 24
514 25
501
518 516
517
505
23
30
510
504
512
2

3
5
6 513

1 503

DE-18 Z 11-12
 CHAPTER
調速機取付(UG) 2
ITEM
GOVERNOR DRIVING(UG) DE-18 26.2
機関回転数 / Engine Revolution Speed (1) 900min-1 (2) 720min-1
番号 パーツコード 部品名称 Name of Parts 数量Quantity
Number Parts Code (1) (2)

1 06500-001 ギヤケース GEAR CASE 1 1

2 06500-002 カップリング COPLING 1 1
3 06500-003 ボルト BOLT 4 4
5 06500-005 ギヤ GEAR 1
6 06500-006 ギヤ GEAR 1

22 00013-003 ケース CASE 1 1

23 00013-006 ギヤ GEAR 1
24 00013-007 ジク SHAFT 1 1
25 00013-010 ディスタンス DISTANCE 1 1
26 00013-012 カップリング COPLING 1 1

27 00013-013 ガスケット GASKET 1 1

30 06496-006 ギヤ GEAR 1

501 X200012030ZZ ボルト BOLT 4 4

503 X200012050ZZ ボルト BOLT 3 3
504 X200012120ZZ ボルト BOLT 2 2
505 X200012140ZZ ボルト BOLT 2 2
507 X210010067ZZ スタッド STUD 4 4

508 X220010000ZZ ナット NUT 4 4

510 X225216000ZZ キクナット CASTLE 1 1
512 Z320004030ZZ ワリピン SPLIT PIN 1 1
513 Z321010200ZZ ハリガネ WIRE 1 1
514 Z330006025ZZ テーパピン TAPER PIN 1 1

516 Z335006025ZZ ヘイコウピン STRAIGHT PIN 2 2

517 Z400005016ZZ キー KEY 1 1
518 Z451162050ZZ ベアリング BEARING 2 2

DE-18 Z 11-12
CHAPTER
2 調速機取付(EAR20)
ITEM

26.3 DE-18 GOVERNOR DRIVING (EAR20)

Governor EAR20

{
9 |

15
501
510
17

502 16
506

(3)
8

3
509
509
2
505 503
1 11

DE-18 A 15-08
 CHAPTER
調速機取付(EAR20) 2
ITEM
GOVERNOR DRIVING (EAR20) DE-18 26.3

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity
1 06500-001 ガバナギヤケース GEAR CASE : GOVERNOR 1
2 06500-002 カイテンベンクドウカップリング COUPLING: ROTARY VALVE DRIVING 1
3 06500-003 ボルト BOLT 4
8 06500-008 アクチュエータダイ MOUNT: ACTUATOR 1
9 06500-009 アクチュエータダイ－２ MOUNT 2: ACTUATOR 1

11 06500-011 ディスタンス：カイテンベン DISTANCE : ROTARY VALVE 1

15 06496-015 ディスタンス DISTANCE 4
16 06496-016 ボウシンゴム ISORATION RUBBER 4
17 06496-017 ボウシンゴムオサエ CLAMP: ISORATION RUBBER 2

501 X200010025ZZ ボルト BOLT 4

502 X200012020ZZ ボルト BOLT 4
503 X200012050ZZ ボルト BOLT 3
505 X200012120ZZ ボルト BOLT 2
506 X200012140ZZ ボルト BOLT 2

509 Z321010200ZZ ハリガネ WIRE 1

510 X227012000ZZ U-ナット U-NUT 4

DE-18 A 15-08
CHAPTER
2 調速機リンク(RHD)
ITEM

27.1 DE-18 GOVERNOR LINK (RHD)

512
525
510 9
515
502 517 516 526 519 22 507 530
8 26 18 25
24
529 7
504 501
30 531
509
518 13 519
6
522
513 29
527 28 523
506 4 27
1 505 3
16 520
508 29
5 32 511
10 508
11 15
12 508
514
521 2
503 14

524 31
524

DE-18 Z 11-12
 CHAPTER
調速機リンク(RHD) 2
ITEM
GOVERNOR LINK (RHD) DE-18 27.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 00014-001 ジク SHAFT 1
2 00014-002 ダイ MOUNT 1
3 00014-003 ボルト BOLT 1
4 00014-004 レバ LEVER 1
5 00014-005 レバ LEVER 1

6 00014-006 レバ LEVER 1
7 00014-007 シシン LOAD POINTER 1
8 00014-008 メイバン NAME PLATE 1
9 00014-009 ブラケット BRACKET 1
10 00014-010 ストッパ STOPPER 1

11 00014-011 ノブ KNOB 1
12 00014-012 バネ SPRING 1
13 00014-013 ノブ KNOB 1
14 00014-014 ストッパ STOPPER 1
15 00014-015 メイバン NAME PLATE 1

16 00014-016 メイバン NAME PLATE 1

18 00014-018 ジク SHAFT 1
22 00014-022 ロッドエンド ROD END 1
24 00014-024 リンクピン RING PIN 1
25 00014-025 レバ LEVER 1

26 00014-026 レバ LEVER 1
27 00014-027 バネ SPRING 1
28 00014-028 カナグ RETAINER 1
29 00014-029 シート SEAT 2
30 00014-030 ザガネ WASHER 1

31 00014-031 ブラケット BRACKET 1

32 00014-032 メイバン NAME PLATE 1

501 Z415005040ZZ スプリングピン SPRING PIN 1

502 Z415005040ZZ スプリングピン SPRING PIN 1
503 Z415005035ZZ スプリングピン SPRING PIN 1
504 Z415005035ZZ スプリングピン SPRING PIN 1
505 Z415004030ZZ スプリングピン SPRING PIN 1

DE-18 Z 11-12
CHAPTER
2 調速機リンク(RHD)
ITEM

27.1 DE-18 GOVERNOR LINK (RHD)

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

506 Z411002000ZZ スナップリング SNAP RING 1

507 Z330003020ZZ テーパピン TAPER PIN 1
508 Z352015500ZZ リベット RIVET 6
509 Z320002030ZZ ワリピン SPLIT PIN 1
510 Z320002030ZZ ワリピン SPLIT PIN 1

511 Z320002020ZZ ワリピン SPLIT PIN 1

512 Z315010000ZZ ハツキザガネ TOOTHED LOCK WASHER 1
513 Z315010000ZZ ハツキザガネ TOOTHED LOCK WASHER 1
514 Z315014000ZZ ハツキザガネ TOOTHED LOCK WASHER 1
515 Z300010000ZZ ヒラザガネ FLAT WASHER 1

516 X245204006ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 4

517 X225110000ZZ キクナット CASTLE 1
518 X225110000ZZ キクナット CASTLE 1
519 X220310000ZZ ナット NUT 3
520 X220308000ZZ ナット NUT 1

521 X220014000ZZ ナット NUT 1

522 X220010000ZZ ナット NUT 2
523 X210008031ZZ スタッド STUD 1
524 X200012025ZZ ボルト BOLT 6
525 X200010035ZZ ボルト BOLT 1

526 X200010032ZZ ボルト BOLT 1

527 X200010030ZZ ボルト BOLT 1
529 X200008030ZZ ボルト BOLT 1
530 X200008020ZZ ボルト BOLT 1
531 X200008014ZZ ボルト BOLT 2

DE-18 Z 11-12
 CHAPTER
メモ 2
ITEM
MEMO DE-18
CHAPTER
2 調速機リンク(UG)
ITEM

27.2 DE-18 GOVERNOR LINK (UG)

509 41
515
517 22
528
519
509 24
513 515
501 525 517 526
7 8 516 9
529 502
531
504
6 19
512 18
527 13
523 27
5
21
506 23 4 17
505
20
1 16
10 508
11 26
12 32
514 508 3
521 15 520
503 508
524 14

2
31

524

DE-18 Z 11-12
 CHAPTER
調速機リンク(UG) 2
ITEM
GOVERNOR LINK (UG) DE-18 27.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 00014-001 ジク SHAFT 1
2 00014-002 ダイ MOUNT 1
3 00014-003 ボルト BOLT 1
4 00014-004 レバ LEVER 1
5 00014-005 レバ LEVER 1

6 00014-006 レバ LEVER 1
7 00014-007 シシン LOAD POINTER 1
8 00014-008 メイバン NAME PLATE 1
9 00014-009 ブラケット BRACKET 1
10 00014-010 ストッパ STOPPER 1

11 00014-011 ノブ KNOB 1
12 00014-012 バネ SPRING 1
13 00014-013 ノブ KNOB 1
14 00014-014 ストッパ STOPPER 1
15 00014-015 メイバン NAME PLATE 1

16 00014-016 メイバン NAME PLATE 1

17 00014-017 ホルダ HOLDER 1
18 00014-018 ジク SHAFT 1
19 00014-019 ナット NUT 1
20 00014-020 ホークエンド FORK END 1

21 00014-021 スフエリカルプレインベアリング SPHERICAL PLAIN BEARING 1

22 00014-022 ロッドエンド ROD END 1
23 00014-023 リンクピン RING PIN 1
24 00014-024 リンクピン RING PIN 1
26 00014-026 レバ LEVER 1

27 00014-027 バネ SPRING 1
31 00014-031 ブラケット BRACKET 1
32 00014-032 メイバン NAME PLATE 1

41 06477-002 レバ LEVER 1

501 Z415005040ZZ スプリングピン SPRING PIN 1

502 Z415005040ZZ スプリングピン SPRING PIN 1
503 Z415005035ZZ スプリングピン SPRING PIN 1
504 Z415005035ZZ スプリングピン SPRING PIN 1
505 Z415004030ZZ スプリングピン SPRING PIN 1

DE-18 Z 11-12
CHAPTER
2 調速機リンク(UG)
ITEM

27.2 DE-18 GOVERNOR LINK (UG)

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

506 Z411002000ZZ スナップリング SNAP RING 1

508 Z352015500ZZ リベット RIVET 6
509 Z320002030ZZ ワリピン SPLIT PIN 2
512 Z315010000ZZ ハツキザガネ TOOTHED LOCK WASHER 1
513 Z315010000ZZ ハツキザガネ TOOTHED LOCK WASHER 1

514 Z315014000ZZ ハツキザガネ TOOTHED LOCK WASHER 1

515 Z300010000ZZ ヒラザガネ FLAT WASHER 2
516 X245204006ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 4
517 X225110000ZZ キクナット CASTLE 2
519 X220310000ZZ ナット NUT 1

520 X220308000ZZ ナット NUT 1

521 X220014000ZZ ナット NUT 1
523 X210008031ZZ スタッド STUD 1
524 X200012025ZZ ボルト BOLT 6
525 X200010035ZZ ボルト BOLT 1

526 X200010032ZZ ボルト BOLT 1

527 X200010030ZZ ボルト BOLT 1
528 X200010020ZZ ボルト BOLT 1
529 X200008030ZZ ボルト BOLT 1
531 X200008014ZZ ボルト BOLT 2

DE-18 Z 11-12
 CHAPTER
メモ 2
ITEM
MEMO DE-18
CHAPTER
2調速機リンク（EAR20）
ITEM

27.3 DE-18 GOVERNOR LINK (EAR20)

GOVERNOR EAR20 GOVERNOR EAR20

110, 111,112 34 502
31 4 37 525
122 42, 514
515 3
81 516 515
103 ,511
503, 517 9 108
513,520
504
128 2, 524 10
525
520 505
512
513 106
507 508
130
113
82 116, 521
506 132, 521
101
127
522 509 115, 521
524 129
6 102
5 105 104, 523 510, 518 508
505
501,517 114
519 512

DE-18 Z 12-11
 CHAPTER
調速機リンク（EAR20） 2
ITEM
GOVERNOR LINK (EAR20) DE-18 27.3

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

2 06429-002 シシン：フカケイ：EAR20 POINTER: LOAD SCALE: EAR20 1

3 06429-003 レバー：フカケイ：EAR20 LEVER: LOAD SCALE: EAR20 1
4 06429-004 ブラケット：フカケイ：EAR20 BRACKET: LOAD SCALE: EAR20 1
5 06429-005 ブラケット：テイシレバーダイ BRACKET: STOP LEVER MOUNT 1
6 06429-006 ブラケット：コモンロッド：EAR-20 BRACKET: COMMON ROD: EAR20 1

9 06429-009 レバー：コモンロッド：EAR20 LEVER: COMMON: EAR20 1

10 06429-010 ジク SHAFT 1
31 E284670310 リンクピン：EAR20 LINK PIN EAR-20 1
34 E284670340 ピン：EAR20 PIN： EAR-20 1
37 E287270370 ノブ PRASTIC CROSS KNOB 1

42 E284670420 メイバン：ヒジヨウヨウレバー NAME PLATE： LEVER FOR EMERGENCY 1

81 E204650810 メイバン：ヒジョウヨウノブ NAME PLATE FOR EMERGENCY NOB 1
82 E204650820 メイバン：ヒジョウヨウ：EAR20 NAME PLATE FOR EMERGENCY: EAR20 1
101 00014-001 ジク：テイシレバー SHAFT: STOP LEVER 1
102 00014-002 ダイ：テイシレバー MOUNT: STOP LEVER 1

103 00014-003 ボルト：ラックストッパ BOLT: RACK STOPPER 1

104 00014-004 レバー：コントロール LEVER: CONTROL 1
105 00014-005 レバー：テイシ LEVER: STOP 1
106 00014-006 レバー：コモンロッド LEVER: COMMON ROD 1
108 00014-008 メイバン：フカケイ NAME PLATE: LOAD POINTER 1

110 00014-010 ストッパ STOPPER 1

111 00014-011 ノブ KNOB 1
112 00014-012 バネ SPRING 1
113 00014-013 ノブ KNOB 1
114 00014-014 ストッパ STOPPER 1

115 00014-015 メイバン：ガバナハンドル：ストップ NAME PLATE: GOVERNOR LEVER: STOP 1

116 00014-016 メイバン：ガバナハンドル：ラン NAME PLATE: GOVERNOR LEVER: RUN 1
122 00014-022 ロッドエンド：SFR1-10R ROD END: SFR1-10R 1
127 00014-027 バネ SPRING 1
128 00014-028 カナグ：ガバナリンク RETAINER: GOVERNOR LINK 1

129 00014-029 シート：ガバナリンクバネ SEAT: GOVERNOR LINK SPRING 2

130 00014-030 ザガネ WASHER 1
132 00014-032 メイバン：ガバナハンドル：スタート NAME PLATE: GOVERNOR LEVER: START 1

DE-18 Z 12-11
CHAPTER
2 調速機リンク（EAR20）
ITEM

27.3 DE-18 GOVERNOR LINK (EAR20)

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

501 X200008030ZZ ボルト BOLT 2

502 X200010032ZZ ボルト BOLT 1
503 X200010035ZZ ボルト BOLT 1
504 X200010045ZZ ボルト BOLT 1
505 X200012025ZZ ボルト BOLT 8

506 X200012035ZZ ボルト BOLT 4

507 X210008031ZZ スタッド STUD 1
508 X220010000ZZ ナット NUT 2
509 X220012000ZZ ナット NUT 4
510 X220014000ZZ ナット NUT 1

511 X220308000ZZ ナット NUT 1

512 X220310000ZZ ナット NUT 3
513 X225110000ZZ キクナット CASTLE NUT 2
514 X245203005ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 2
515 X245204006ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 12

516 Z300010000ZZ ヒラザガネ FLAT WASHER 1

517 Z315010000ZZ ハツキザガネ TOOTHED LOCK WASHER 2
518 Z315014000ZZ ハツキザガネ TOOTHED LOCK WASHER 1
519 Z320002020ZZ ワリピン SPLIT PIN 1
520 Z320002030ZZ ワリピン SPLIT PIN 2

521 Z352015500ZZ リベット RIVET 6

522 Z411002000ZZ スナップリング SNAP RING 1
523 Z415004030ZZ スプリングピン SPRING PIN 1
524 Z415005035ZZ スプリングピン SPRING PIN 1
525 Z415005040ZZ スプリングピン SPRING PIN 3

DE-18 Z 12-11
 CHAPTER
メモ 2
ITEM
MEMO DE-18
CHAPTER
2 排気管
ITEM

28.1 DE-18 EXHAUST MANIFOLD

14

504
47 505

13
45
15

501 503 502 49 37

DE-18 A 15-08
 CHAPTER
排気管 2
ITEM
EXHAUST MANIFOLD DE-18 28.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

13 06427-012 ベローズ BELLOWS 3

14 06427-014 ガスケット GASKET 6
15 06427-015 ガスケット GASKET 6
37 06427-037 ブラケット BRACKET 2
45 06427-045 ハイキカン EXHAUST PIPE 1

47 06427-047 ハイキカン EXHAUST PIPE 1

49 06427-049 ハイキカン EXHAUST PIPE 1

501 X205012030ZZ HTボルト HT BOLT 24

502 X205012045ZZ HTボルト HT BOLT 28
503 X220012000DZ ナット NUT 28
504 X200010025DZ ボルト BOLT 4
505 Z300010000ZZ ヒラザガネ FLAT WASHER 4

DE-18 A 15-08
CHAPTER
2 排気管（主機、MET）
ITEM

28.2 DE-18 EXHAUST MANIFOLD (PROPULSION ENGINE, MET)

MET18
14

1 2 3 4 5 6

61 62 12 15 63 64 77

501 503 502 500, 504

DE-18 A 17-04
 CHAPTER
排気管（主機、MET） 2
ITEM
EXHAUST MANIFOLD (PROPULSION ENGINE, MET) DE-18 28.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

12 06427-012 ベローズ BELLOWS 4

14 06427-014 ハイキカンガスケット 1 GASKET 1: EXHAUST PIPE 6
15 06427-015 ハイキカンガスケット 2 GASKET 2: EXHAUST PIPE 8
61 06427-061 ハイキカン 80-1 EXHAUST PIPE: 80-1 1
62 06427-062 ハイキカン 80-2, 3 EXHAUST PIPE: 80-2, 3 1

63 06427-063 ハイキカン 80-4, 5 EXHAUST PIPE: 80-4, 5 1

64 06427-064 ハイキカン 80-6 EXHAUST PIPE: 80-6 1
77 06427-077 ハイキカンブラケット 1 BRACKET 1: EXAUST PIPE 2

500 X200010025DZ ボルト BOLT 4

501 X205012030ZZ HTボルト HT BOLT 24
502 X205012045ZZ HTボルト HT BOLT 24
503 X220012000DZ ナット NUT 24
504 Z300010000ZZ ヒラザガネ FLAT WASHER 4

DE-18 Z 12-11
CHAPTER
2 排気管カバー(AT)
ITEM

29.1 DE-18 EXHAUST MANIFOLD COVER(AT)

503 503
504 2 504 1 27
506
507

506
510

502 502 502 502 506 502 502

501 505 509 3 10 A 505 505 11 4 507 505 509
502 15
16
507
508
14
P
511
506
507 13
5 502
501 509 A 502 501
502 509 502 12
20 17 24 19 510 17 25 19

510
17
501 18

510
1 23 26 22
501 511 501 Section "A-A"
Arrangement of Brackets

501
7 502 6

506 507 506 501

507 8 508 507 9 502
View "P"

DE-18 Z 11-12
 CHAPTER
排気管カバー(AT) 2
ITEM
EXHAUST MANIFOLD COVER(AT) DE-18 29.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06609-001 カバー COVER 1

2 06609-002 カバー COVER 1
3 06609-003 カバー COVER 1
4 06609-004 カバー COVER 1
5 06609-005 カバー COVER 1

6 06609-006 カバー COVER 1

7 06609-007 カバー COVER 1
8 06609-008 カバー COVER 1
9 06609-009 カバー COVER 1
10 06609-010 カバー COVER 1

11 06609-011 カバー COVER 1

12 06609-012 カバー COVER 1
13 06609-013 カバー COVER 1
14 06609-014 カバー COVER 1
15 06609-015 カバー COVER 1

16 06609-016 カバー COVER 1

17 06609-017 ブラケット BRACKET 1
18 06609-018 ブラケット BRACKET 1
19 06609-019 ブラケット BRACKET 4
20 06609-020 ブラケット BRACKET 1

21 06609-021 ブラケット BRACKET 4

22 06609-022 ブラケット BRACKET 1
23 06609-023 ブラケット BRACKET 1
24 06609-024 ブラケット BRACKET 1
25 06609-025 ブラケット BRACKET 1

26 06609-026 ブラケット BRACKET 1

27 06609-027 ブラケット BRACKET 1

501 X200012020ZZ ボルト BOLT 53

502 Z300012000ZZ ヒラザガネ FLAT WASHER 47
503 X200010014ZZ ボルト BOLT 12
504 Z300010000ZZ ヒラザガネ FLAT WASHER 12
505 X200012040ZZ ボルト BOLT 4

DE-18 Z 11-12
CHAPTER
2 排気管カバー(AT)
ITEM

29.1 DE-18 EXHAUST MANIFOLD COVER(AT)

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

506 Z212008015ZZ アナツキボルト BOLT 28

507 Z300008000ZZ ヒラザガネ FLAT WASHER 33
508 Z212008020ZZ アナツキボルト BOLT 5
509 X200012045ZZ ボルト BOLT 4
510 X200012025ZZ ボルト BOLT 10

511 X200012016ZZ ボルト BOLT 15

DE-18 Z 11-12
 CHAPTER
メモ 2
ITEM
MEMO DE-18
CHAPTER
2 排気管カバー(MET,TPS)
ITEM

29.2 DE-18 EXHAUST MANIFOLD COVER(MET,TPS)

507 507 504

511 2 511 1 508

505 505 505 508

503 512 3 29 A 512 512 28 4 510
512
509 506
510 512
P Q

503 502
512
5 A
506
512 508 503 508
510 7 512 510 6
505 506
512 512
33
32
31
509 8 501 9 503
508
510 510 512 512
View "P"
30
506 503 504 24 504
512 12 512
20 19 19 37 19 25 19
View "Q"

17

18

504 503 21 23 502 503 22

503 26
Section "A-A" Arrngement of Brackets

DE-18 Z 11-12
 CHAPTER
排気管カバー(MET,TPS) 2
ITEM
EXHAUST MANIFOLD COVER(MET,TPS) DE-18 29.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

1 06609-001 カバー COVER 1

2 06609-002 カバー COVER 1
3 06609-003 カバー COVER 1
4 06609-004 カバー COVER 1
5 06609-005 カバー COVER 1

6 06609-006 カバー COVER 1

7 06609-007 カバー COVER 1
8 06609-008 カバー COVER 1
9 06609-009 カバー COVER 1
12 06609-012 カバー COVER 1

17 06609-017 ブラケット BRACKET 1

18 06609-018 ブラケット BRACKET 1
19 06609-019 ブラケット BRACKET 4
20 06609-020 ブラケット BRACKET 1
21 06609-021 ブラケット BRACKET 4

22 06609-022 ブラケット BRACKET 1

23 06609-023 ブラケット BRACKET 1
24 06609-024 ブラケット BRACKET 1
25 06609-025 ブラケット BRACKET 1
26 06609-026 ブラケット BRACKET 1

28 06609-028 カバー COVER 1

29 06609-029 カバー COVER 1
30 06609-030 カバー COVER 1
31 06609-031 カバー COVER 1
32 06609-032 カバー COVER 1

33 06609-033 カバー COVER 1

37 06609-037 ブラケット BRACKET 1

501 X200012015ZZ ボルト BOLT 4

502 X200012016ZZ ボルト BOLT 15
503 X200012020ZZ ボルト BOLT 48
504 X200012025ZZ ボルト BOLT 10
505 X200012040ZZ ボルト BOLT 4

DE-18 Z 11-12
CHAPTER
2 排気管カバー(MET,TPS)
ITEM

29.2 DE-18 EXHAUST MANIFOLD COVER(MET,TPS)

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

506 X200012045ZZ ボルト BOLT 4

507 X200012014ZZ ボルト BOLT 12
508 Z212008015ZZ アナツキボルト BOLT 24
509 Z212008020ZZ アナツキボルト BOLT 5
510 Z300008000ZZ ヒラザガネ FLAT WASHER 29

511 Z300010000ZZ ヒラザガネ FLAT WASHER 12

512 Z300012000ZZ ヒラザガネ FLAT WASHER 46

DE-18 Z 11-12
 CHAPTER
メモ 2
ITEM
MEMO DE-18
CHAPTER
2 過給機取付（AT）
ITEM

30.1 DE-18 TURBOCHARGER FITTING(AT)

19
17
7

504
508 4 10
505
507
9 510
501
506

901
513
11 2
502
21
509 511 514

512 503 12

DE-18 Z 17-05
 CHAPTER
過給機取付（AT） 2
ITEM
TURBOCHARGER FITTING(AT) DE-18 30.1
T/C出口ダクト計器取付用タップ数 Number of instrumentation screws(exhaust gas outret pipe) (1) 0 (2) 1 (3) 2
番号 パーツコード 部品名称 Name of Parts 数量Quantity
Number Parts Code (1) (2) (3)

901 06548-001 ダイASSY ASSY. MOUNT 1 1 1

2 06548-002 ダイ MOUNT 1 1 1
4 06548-004 ハイキカン EXHAUST PIPE 1 1 1
7 06548-007 ダクト DUCT 1
9 06548-009 ガスケット GASKET 1 1 1
10 06548-010 ガスケット GASKET 1 1 1

11 06548-011 ブラケット BRACKET 1 1 1

12 06548-012 ブラケット BRACKET 1 1 1
17 06548-017 ダクト DUCT 1
19 06548-019 ダクト DUCT 1

21 00024-016 プラグ PLUG 1 1 1

501 X200012020ZZ ボルト BOLT 4 4 4

502 X200012025ZZ ボルト BOLT 4 4 4
503 X200016035ZZ ボルト BOLT 4 4 4
504 X205012030ZZ HTボルト HT-BOLT 8 8 8
505 X205012050ZZ HTボルト HT-BOLT 8 8 8

506 X205016040ZZ HTボルト HT-BOLT 2 2 2

507 X205016050ZZ HTボルト HT-BOLT 4 4 4
508 X220012000DZ ナット NUT 8 8 8
509 X220016000DZ ナット NUT 4 4 4
510 Z300012000ZZ ヒラザガネ FLAT WASHER 2 2 2

511 Z560102435DZ Oリング O-RING 1 1 1

512 Z560105857ZZ Oリング O-RING 1 1 1
513 Z560204531DZ Oリング O-RING 1 1 1
514 X200016025ZZ ボルト BOLT 2 2 2

DE-18 Z 11-12
CHAPTER
2 過給機取付（MET）
ITEM

30.2 DE-18 TURBOCHARGER FITTING(MET)

30
505
508

516 P

29

517
23 51 21 512 519 28 502

901
31

518
26

520

515
510

508
510
515
503 12
View "P"

DE-18 Z 11-12
 CHAPTER
過給機取付（MET） 2
ITEM
TURBOCHARGER FITTING(MET) DE-18 30.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06548-020 ダイASSY ASSY. MOUNT 1

12 06548-012 ブラケット BRACKET 1

21 06548-021 ダイ MOUNT 1
23 06548-023 ハイキカン EXHAUST PIPE 1
26 06548-026 ダクト DUCT 1
28 06548-028 ブラケット BRACKET 1

29 06548-029 ブラケット BRACKET 1

30 06548-030 ガスケット GASKET 1
31 06548-031 ガスケット GASKET 1
51 00010-005 プラグ PLUG 1

502 X200012025ZZ ボルト BOLT 6

503 X200016035ZZ ボルト BOLT 6
505 X205012050ZZ HTボルト HT-BOLT 8
508 X220012000DZ ナット NUT 10
510 Z300012000ZZ ヒラザガネ FLAT WASHER 4

512 Z560105857ZZ Oリング O-RING 1

515 X200012030ZZ ボルト BOLT 4
516 X205010030ZZ HTボルト HT-BOLT 12
517 X205010040ZZ HTボルト HT-BOLT 12
518 X205016065ZZ HTボルト HT-BOLT 2

519 X220010000DZ ナット NUT 12

520 Z560206531DZ Oリング O-RING 1

DE-18 Z 11-12
CHAPTER
2 過給機取付（TPS）
ITEM

30.3 DE-18 TURBOCHARGER FITTING(TPS)

61 58 507 63

506,508

75,510

12

501
901

16
500
57

512 505 View “P”

59

501,509 511
76
513
503,508,509

P
77,504,508,509

502,508

74

11

DE-18 Z 15-06
 CHAPTER
過給機取付（TPS） 2
ITEM
TURBOCHARGER FITTING(TPS) DE-18 30.3

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 06548-001 T/C ダイ ASSY T/C MOUNT ASSY. 1

11 06548-011 ハイキガスダクトブラケット EXHAUST GAS DUCT BRACKET 1

12 06548-012 T/C ダイ ブラケット T/C MOUNT BRACKET 1
16 00024-016 ワンガタプラグ SELING CAP 1
57 06548-057 T/C ダイ T/C MOUNT 1
58 06548-058 T/C イリグチ ガスケット T/C INLET GASKET 2

59 06548-059 T/C デグチ ガスケット T/C OUTLET GASKET 1

61 06548-061 T/C イリグチカン T/C INLET DUCT 1
63 06548-063 T/C デグチカン T/C OUTLET DUCT 1
74 06548-074 T/C デグチカンブラケット T/C OUTLET DUCT BRACKET 1
75 E202350520 ボルト BOLT 2

76 E202350630 デグチカンブラケット OUTLET DUCT BRACKET 2

77 E202651030 サラバネ DISC SPRING 12

500 X200012020ZZ ボルト BOLT 2

501 X200012025ZZ ボルト BOLT 6
502 X200012030ZZ ボルト BOLT 2
503 X200012035ZZ ボルト BOLT 2
504 X200012040ZZ ボルト BOLT 2

505 X200016035ZZ ボルト BOLT 4

506 X205012045ZZ HTボルト HT BOLT 16
507 X220008000DZ ナット NUT 12
508 X220012000DZ ナット NUT 22
509 Z300012000ZZ ヒラザガネ FLAT WASHER 8

510 Z300016000ZZ ヒラザガネ FLAT WASHER 2

511 Z560102435DZ Oリング O RING 1
512 Z560105857ZZ Oリング O RING 1
513 Z560204031DZ Oリング O RING 1

DE-18 Z 15-06
CHAPTER
2 空気冷却器
ITEM

31 DE-18 INTERCOOLER

901

903

10

10 902

8 2
6 7
15
17

16
5

11

12
3 4
A 14
13

N/P SEAT
18

Detail "A"

DE-18 Z 11-12
 CHAPTER
空気冷却器 2
ITEM
INTERCOOLER DE-18 31

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06558-001 インタークーラーASSY ASSY. INTERCOOLER 1

902 06558-019 フィン&フィンチューブASSY ASSY. FIN&FIN TUBE 1
903 06558-020 ケーシング&フィンチューブASSY ASSY. CASING&FIN TUBE 1

2 06558-002 ケーシング CASING 1

3 06558-003 カバー COVER 1
4 06558-004 カバー COVER 1
5 06558-005 カンイタ TUBE SHEET 1
6 06558-006 フィン FIN 1

7 06558-007 チューブ TUBE 1

8 06558-008 ガスケット GASKET 1
9 06558-009 ガスケット GASKET 1
10 06558-010 ガスケット GASKET 1
11 06558-011 ボルト COLLAR BOLT 1

12 06558-012 ナット NUT 1

13 06558-013 パッキン PLUG PACKING 1
14 06558-014 プラグ PLUG 1
15 06558-015 ボルト WRENCH BOLT 1
16 06558-016 カンイタ TUBE SHEET 1

17 06558-017 ザガネ WASHER 1

18 06558-018 テーパプラグ TAPER PLUG 1

DE-18 Z 11-12
CHAPTER
2 空気冷却器取付（過給機：AT）
ITEM

32.1.1 DE-18 INTERCOOLER FITTING (T/C:AT)

7 520,510 27 7

507,510
28 7 4 7 507,510
521,510

10
506 511,514
31 532,533
16
502,512 501
P
Bellows type
15

505
513 1 12 2 530,510

508

View " P "

DE-18 A 16-04
 CHAPTER
空気冷却器取付（過給機：AT） 2
ITEM
INTERCOOLER FITTING (T/C:AT) DE-18 32.1.1
過給機入口 T/C INLET (1)･ベローズ無し WITHOUT BELLOWS (2)･ベローズ有り WITH BELLOWS
番号 パーツコード 部品名称 Name  of  Parts 数量Quantity
Number Parts  Code (1) (2)
1 06462-001 ダクト DUCT 1 1
2 06462-002 ガスケット GASKET 1 1
4 06462-004 ベローズ BELLOWS 1
7 06462-007 ガスケット GASKET 2 2
10 06462-010 ダクト DUCT 1 1

12 06462-012 ガスケット GASKET 1 1

15 06462-015 カバー COVER 1 1
16 06462-016 カバー COVER 1
27 06462-027 フランジ FLANGE 1
28 06462-028 ダクト DUCT 1

31 06462-031 Oリング O-RING 1

501 X200008012ZZ ボルト BOLT 4

502 X200010012ZZ ボルト BOLT 10 11
505 X200012030ZZ ボルト BOLT 20
506 X200012035ZZ ボルト BOLT 20 20
507 X200012045ZZ ボルト BOLT 8

508 X205016175ZZ HTボルト HT BOLT 10 10

510 X220012000ZZ ナット NUT 30 8
511 X570004000ZZ ロッカクプラグ HEX. PLUG 1
512 Z300010000ZZ ヒラザガネ FLAT WASHER 10 11
513 Z560230057ZZ Oリング O-RING 1 1

514 Z565002100EE マルパッキン GASKET 1

520 X200012050ZZ ボルト BOLT 4
521 X200012065ZZ ボルト BOLT 4
530 X210012054ZZ スタッド STUD 20
532 X570002000ZZ ロッカクプラグ HEX. PLUG 1

533 Z565001300EE マルパッキン GASKET 1

DE-18 B 16-04
CHAPTER
2 空気冷却器（過給機：AT）ドレン配管
ITEM

32.1.2 DE-18 INTERCOOLER (T/C:AT)DRAIN PIPING

T/C:AT14 509
510 35

511, 512

36

38
505

37

39

61 505
512
P
511

90

505
↑

513

45
View “Q”

View “P”

DE-18 Z 16-04
 CHAPTER
空気冷却器（過給機：AT）ドレン配管 2
ITEM
INTERCOOLER (T/C:AT)DRAIN PIPING DE-18 32.1.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

35 06462-035 ドレンカン -1 DRAIN PIPE -1 1

36 06462-036 ドレンカン -2 DRAIN PIPE -2 1
37 06462-037 ドレンカン -3 DRAIN PIPE -3 1
38 06462-038 ドレンカン -4 DRAIN PIPE -4 1
39 06462-039 ドレンカン -5 DRAIN PIPE -5 1

45 06469-015 ブラケット BRACKET 1

61 06469-061 ブラケット BRACKET 1
90 B092105090 ブラケット BRACKET 1

505 X581208092ZZ カンササエASSY PIPE SUPPORTER ASSY. 4

509 Z565001300EE マルパッキン GASKET 1
510 Z580402000ZZ ドレンコック DRAIN COCK 2
511 Z582100037ZZ カンササエ PIPE SUPPORTER 3
512 Z582308092ZZ カンササエ PIPE SUPPORTER 4

513 Z585508080ZZ カンバンド PIPE SUPPORTER 1

DE-18 Z 16-04
CHAPTER
2 空気冷却器取付（過給機：MET）
ITEM

32.2.1 DE-18 INTERCOOLER FITTING (T/C:MET)

503,520 29

6 30 6 503 6

505,520 520

25 3

509
31 525, 532
1 P

26 504 520

Bellows type
501, 530

515, 521

531 12 2

View " P "

510

DE-18 A 16-04
 CHAPTER
空気冷却器取付（過給機：MET） 2
ITEM
INTERCOOLER FITTING (T/C:MET) DE-18 32.2.1
過給器入口 T/C INLET (1)･ベローズ無し WITHOUT BELLOWS (2)･ベローズ有り WITH BELLOWS
番号 パーツコード 部品名称 Name  of  Parts 数量Quantity
Number Parts  Code (1) (2)

1 06462-001 ダクト DUCT 1 1

2 06462-002 ガスケット GASKET 1 1
3 06462-003 ベローズ BELLOWS 1
6 06462-006 ガスケット GASKET 2 2
12 06462-012 ガスケット GASKET 1 1

25 06462-025 ダクト DUCT 1 1

26 06462-026 カバー COVER 1 1
29 06462-029 フランジ FLANGE 1
30 06462-030 ダクト DUCT 1
31 06462-031 Oリング O-RING 1

501 X200010012ZZ ボルト BOLT 10 10

502 X200010035ZZ ボルト BOLT 2 2
503 X200010040ZZ ボルト BOLT 6 6
504 X200010045ZZ ボルト BOLT 6
505 X200010065ZZ ボルト BOLT 6

509 X200012035ZZ ボルト BOLT 20 20

510 X205016170ZZ HTボルト HT-BOLT 10 10
515 X210012054ZZ スタッド STUD 20 20
520 X220010000ZZ ナット NUT 12 12
521 X220012000ZZ ナット NUT 20 20

525 X570002000ZZ ロッカクプラグ HEX. PLUG 1 1

530 Z300010000ZZ ヒラザガネ FLAT WASHER 10 10
531 Z560230057ZZ Oリング O-RING 1 1
532 Z565001300EE マルパッキン GASKET 1 1

DE-18 A 16-04
CHAPTER
2 空気冷却器（過給機：MET）ドレン配管
ITEM

32.2.2 DE-18 INTERCOOLER (T/C:MET)DRAIN PIPING

T/C:MET18
510
35
511
512 , 513
36
38

505

37
39
505
61
P 505 View “Q”
512

90
505
↑

514

45 505

View “P”

DE-18 Z 16-04
 CHAPTER
空気冷却器（過給機：MET）ドレン配管 2
ITEM
INTERCOOLER (T/C:MET)DRAIN PIPING DE-18 32.2.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

35 06462-035 ドレンカン -1 DRAIN PIPE -1 1

36 06462-036 ドレンカン -2 DRAIN PIPE -2 1
37 06462-037 ドレンカン -3 DRAIN PIPE -3 1
38 06462-038 ドレンカン -4 DRAIN PIPE -4 1
39 06462-039 ドレンカン -5 DRAIN PIPE -5 1

45 06469-015 ブラケット BRACKET 1

61 06469-061 ブラケット ERACKET 1
90 B092105090 ブラケット BRACKET 1

505 X581208092ZZ カンササエASSY PIPE SUPPORTER ASSY. 4

510 Z565001300EE パッキン GASKET 2
511 Z580402000ZZ ドレンコック DRAIN COCK 2
512 Z582100037ZZ カンササエ PIPE SUPPORTER 3
513 Z582308092ZZ カンササエ PIPE SUPPORTER 4

514 Z585508080ZZ カンバンド PIPE SUPPORTER 1

DE-18 Z 16-04
CHAPTER
2 空気冷却器取付（過給機：TPS）
ITEM

32.3.1 DE-18 INTERCOOLER FITTING (T/C:TPS)

502,509
36 35 518
516
View “C”
517 501,508 B

View “B” View “C” Section”A - A”

1 503 507,509
View “Q”
T/C:TPS48 8
5
8 Q 512
504,509
10
515
510,514
33
500,512 P
506,509

505 A A
502,509
511

12 2
513 C
39

View “P”

DE-18 Z 16-04
 CHAPTER
空気冷却器取付（過給機：TPS） 2
ITEM
INTERCOOLER FITTING (T/C:TPS) DE-18 32.3.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

1 06462-001 I/Cデグチダクト I/C OUTLET DUCT 1

2 06462-002 I/Cイリグチガスケット I/C INLET GASKET 1
5 06462-005 ベローズ BELLOWS 1
8 06462-008 ブロワデグチガスケット BLOWER OUTLET GASKET 2
10 06462-010 I/Cイリグチダクト I/C INLET DUCT 1

12 06462-012 I/Cデグチガスケット I/C OUTLET GASKET 1

33 06462-033 I/Cイリグチダクトカバ I/C INLET DUCT COVER 1
35 06469-015 キュウキドレンカンブラケット INTAKE DRAIN PIPE BRACKET 1
36 06469-061 I/Cドレンカンブラケット I/C DRAINPIPE BRACKET 1
39 B092105090 ハイカンブラケット PIPING BRACKET 1

500 X200010012ZZ ボルト BOLT 11

501 X200010035ZZ ボルト BOLT 2
502 X200012025ZZ ボルト BOLT 2
503 X200012035ZZ ボルト BOLT 20
504 X200012050ZZ ボルト BOLT 4

505 X205016170ZZ HTボルト HT BOLT 10

506 X210012054ZZ スタッド STUD 20
507 X210012060ZZ スタッド STUD 4
508 X220010000ZZ ナット NUT 2
509 X220012000ZZ ナット NUT 34

510 X570002000ZZ ロッカクプラグ HEX. PLUG 1

511 X581208092ZZ カンササエASSY PIPE SUPPORTER ASSY. 1
512 Z300010000ZZ ヒラザガネ FLAT WASHER 11
513 Z560230057ZZ Oリング O RING 1
514 Z565001300EE マルパッキン GASKET 1

515 Z580402000ZZ ドレンコック DRAIN COCK 2

516 Z582100037ZZ カンササエ PIPE SUPPORTER 1
517 Z582308092ZZ カンササエ PIPE SUPPORTER 2
518 Z585508080ZZ カンバンド PIPE CLIP 1

DE-18 Z 16-04
CHAPTER
2 空気冷却器（過給機：TPS）ドレン配管
ITEM

32.3.2 DE-18 INTERCOOLER (T/C:TPS)DRAIN PIPING

T/C:TPS48
512 ,508
40
513
515 ,514

36

38

509

37
39
61 509
515
View “Q”
514
90
509
P

↑ 516

45

509

View “P”

DE-18 Z 16-04
 CHAPTER
空気冷却器（過給機：TPS）ドレン配管 2
ITEM
INTERCOOLER (T/C:TPS)DRAIN PIPING DE-18 32.3.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

36 06462-036 ドレンカン -2 DRAIN PIPE -2 1

37 06462-037 ドレンカン -3 DRAIN PIPE -3 1
38 06462-038 ドレンカン -4 DRAIN PIPE -4 1
39 06462-039 ドレンカン -5 DRAIN PIPE -5 1
40 06462-040 ドレンカン -6 DRAIN PIPE -6 1

45 06469-015 ブラケット BRACKET 1

61 06469-061 ブラケット BRACKET 1
90 B092105090 ブラケット BRACKET 1

508 X545202000ZZ ツギボルト BANJO PLUG 1

509 X581208092ZZ カンササエASSY PIPE SUPPORTER ASSY. 4
510 X588008020ZZ クイコミユニオン BITING UNION JOINT 1
511 X588608000ZZ クイコミユニオン BITING UNION JOINT 2
512 Z565001300EE マルパッキン GASKET 2

513 Z580402000ZZ ドレンコック DRAIN COCK 2

514 Z582100037ZZ カンササエ PIPE SUPPORTER 3
515 Z582308092ZZ カンササエ PIPE SUPPORTER 4
516 Z585508080ZZ カンバンド PIPE SUPPORTER 1

DE-18 Z 16-04
CHAPTER
2 ヒートボックス（低質油）
ITEM

33.1 DE-18 HEATBOX (HEAVY FUEL OIL)

502 9 502

D 31 32 501 B

6 5 4 3 2 1

30

C C AA P

504

7 53 53 17 53 53 53 17 53
25 24 8 504 29

508

508 22 503

507 (7) (53)

(17)
Section "A-A"
509

28 505
506
102 509 508 509

Detail "B" Section "C-C" Detail "D" View "P"

DE-18 A 12-11
 CHAPTER
ヒートボックス（低質油） 2
ITEM
HEATBOX (HEAVY FUEL OIL) DE-18 33.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

7 06426-007 ボルト：ヒ-トボックス 1 BOLT: HEAT BOX-1 1

8 06426-008 ディスタンス：ヒ-トボックス DISTANCE PIECE: HEAT BOX 2
9 06426-009 ブラケット：ヒ-トボックス カバー BRACKET: HEAT BOX COVER 4
17 06426-017 ボルト：ヒートボックス　 ２ BOLT: HEAT BOX-2 2
22 06426-005 ヒートボックスウシロ HEATBOX: REAR: 1

24 06426-002 ヒートボックスシタ ２ HEATBOX: LOWER: 2 1

25 06426-003 ヒートボックスシタ ３ HEATBOX: LOWER: 3 1
28 06426-006 ジク：ノブ：ヒートボックス ２ SHAFT: KNOB: HEAT BOX 2 4
29 06426-012 ヒートボックスシタ １ ＡＳＳＹ ASSY.: HEAT BOX: LOWER 1 1
30 06426-013 ヒートボックスマエ ＡＳＳＹ ASSY.: HEAT BOX: FRONT 1

31 06426-014 カバー マエ ＡＳＳＹ：ヒートボックス ASSY.: COVER FRONT: HEAT BOX 1

32 06426-015 カバー ウシロ ＡＳＳＹ：ヒートボックス ASSY.: COVER REAR: HEAT BOX 1
53 06426-051 ボルト：PNリーク BOLT: PN LEAK 6
102 00072-002 ノブ：シリンダヘッドカバー KNOB: CYLINDER HEAD COVER 4

501 X200010035ZZ ボルト BOLT 8

502 X200012025ZZ ボルト BOLT 3
503 X200012030ZZ ボルト BOLT 4
504 X200012040ZZ ボルト BOLT 9
505 Z300014000ZZ ヒラザガネ FLAT WASHER 4

506 Z415004024ZZ スプリングピン SPRING PIN 4

507 Z560101324DZ Oリング O-RING 1
508 Z560102224DZ Oリング O-RING 15
509 Z565001900EE マルパッキン GASKET 9

DE-18 A 12-11
CHAPTER
2 ヒートボックス（Ａ重油）
ITEM

33.2 DE-18 HEATBOX (DIESEL FUEL OIL)

502 9 502

D 31 32 501 B

6 5 4 3 2 1

49

C C AA P

504

50 51 51 52 51 51 51 52 51
46 45 8 504 48

509

508 509 22 503

(52) (50) (51)
Section "A-A"
507
28 505 507
510
506

102 510 509 510

Detail "B" Section "C-C" Detail "D" View "P"

DE-18 Z 17-04
 CHAPTER
ヒートボックス（Ａ重油） 2
ITEM
HEATBOX (DIESEL FUEL OIL) DE-18 33.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

8 06426-008 ディスタンス：ヒ－トボックス DISTANCE PIECE: HEAT BOX 2

9 06426-009 ブラケット：ヒ－トボックスカバー BRACKET: HEAT BOX COVER 4
22 06426-005 ヒートボックスウシロ HEATBOX: REAR 1
28 06426-006 ジク：ノブ：ヒートボックス　 ２ SHAFT: KNOB: HEAT BOX 2 4
31 06426-014 カバーマエ ＡＳＳＹ：ヒートボックス ASSY.: COVER FRONT: HEAT BOX 1

32 06426-015 カバーウシロ ＡＳＳＹ：ヒートボックス ASSY.: COVER REAR: HEAT BOX 1

45 06426-045 ヒートボックスシタ ２：ノズルリークカイシュウ HEATBOX: LOWER 2: NOZZLE. LEAK COLLECT 1
46 06426-046 ヒートボックスシタ ３：ノズルリークカイシュウ HEATBOX: LOWER 3: NOZZLE LEAK COLLECT 1
48 06426-048 ヒートボックスシタ １ ＡＳＳＹ：ノズルリークカイシュウ ASSY.: HEATBOX: LOWER 1: NOZZLE. LEAK COLLECT 1
49 06426-049 ヒートボックスマエ ＡＳＳＹ：ノズルリークカイシュウ ASSY.: HEATBOX: FRONT: NOZZLE. LEAK COLLECT 1

50 06426-050 ボルト：ヒートボックス BOLT: HEATBOX 1

51 06426-051 ボルト：ＦＯ　 リーク BOLT: FO LEAK 6
52 06426-007 ボルト：ヒートボックス－２ BOLT: HEAT BOX-2 2
102 00072-002 ノブ：シリンダヘッドカバー KNOB: CYLINDER HEAD COVER: 4

501 X200010035ZZ ボルト BOLT 8

502 X200012025ZZ ボルト BOLT 3
503 X200012030ZZ ボルト BOLT 4
504 X200012040ZZ ボルト BOLT 9
505 Z300014000ZZ ヒラザガネ FLAT WASHER 4

506 Z415004024ZZ スプリングピン SPRING PIN 4

507 Z560101324DZ Ｏリング O-RING 9
508 Z560101424DZ Ｏリング O-RING 1
509 Z560102224DZ Ｏリング O-RING 20
510 Z565001900EE マルパッキン GASKET 9

DE-18 Z 12-11
CHAPTER
2 電磁弁
ITEM

34 DE-18 MAGNETIC VALVE

DE-18 Z 11-12
 CHAPTER
電磁弁 2
ITEM
MAGNETIC VALVE DE-18 34

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 00066-001 デンジベン MAGNETIC VALVE 1

DE-18 Z 11-12
 501

502
503

26
5
㧞

㧝
35 DE-18 CONTROL MAGNETIC VALVE

Άᢱㆤᢿ

㧭㧠
㔚⏛ᑯ
㧲㧚㧻㧚㧿㧴㨁㨀㧰㧻㨃㧺
㧹㧭㧳㧺㧱㨀㧵㧯
㨂㧭㧸㨂㧱 㧔㧡㧿㧕

901
ᆎേ㔚⏛ᑯ

㧭㧟
㧿㨀㧭㧾㨀㧵㧺㧳
㧹㧭㧳㧺㧱㨀㧵㧯
㨂㧭㧸㨂㧱 㧔㧤㧤㨂㧕

902
29
Άᢱㆤᢿ

㧭㧞
㔚⏛ᑯ
㧲㧚㧻㧚㧿㧴㨁㨀㧰㧻㨃㧺
制御電磁弁

㧹㧭㧳㧺㧱㨀㧵㧯
㨂㧭㧸㨂㧱 㧔㧡㨂㧕
Άᢱᛥ೙

㧭㧝
㔚⏛ᑯ
㧲㧚㧻㧚㧯㧻㧺㨀㧾㧻㧸
㧹㧭㧳㧺㧱㨀㧵㧯
㨂㧭㧸㨂㧱 㧔㧤㧤㧸㧕

㧝
㧞

DE-18 Z 11-12
504
2
CHAPTER

ITEM
 CHAPTER
制御電磁弁 2
ITEM
CONTROL MAGNETIC VALVE DE-18 35

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 00028-027 デンジベンASSY ASSY. MAGNETIC VALVE 1

902 00028-030 デンジベンASSY ASSY. MAGNETIC VALVE 1

5 00028-005 デンジベン MAGNETIC VALVE 4

26 00028-026 マニホールド MANIFOLD 1
29 00028-029 メイバン NAME PLATE 1

501 X230301000JZ トクシュナット SPECIAL NUT 4

502 X249004025ZZ プラスコネジASSY PLUS MACHINE SCREW ASSY 16
503 Z560000415ZZ Oリング O-RING 8
504 Z571502000ZZ テーパプラグ TAPER PLUG 1

DE-18 Z 11-12
CHAPTER
2 スタート＆キリカエスイッチボックス
ITEM

36 DE-18 START & CHANGE SWITCH BOX

901 501

2
4

1
5

DE-18 Z 11-12
 CHAPTER
スタート＆キリカエスイッチボックス 2
ITEM
START & CHANGE SWITCH BOX DE-18 36

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 00247-001 スイッチボックスASSY ASSY. SWITCH BOX 1

1 AGA212Y コントロールボックス CONTROL BOX 1

2 ASN310 セレクタスイッチ SWITCH 1
3 ABN110-G 押ボタンスイッチ SWITCH 1
4 NA-0P-B セレクタスイッチ用銘板 NAME PLATE 1
5 NA-3P-B 押ボタンスイッチ用銘板 NAME PLATE 1

6 EBG 06 12 ノックアウト用コネクタ CONNECTOR 1

501 X245204020ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 4

DE-18 Z 11-12
CHAPTER
2 指圧器
ITEM

37 DE-18 INDICATOR

10

504

7
504

502
2
1
4
501

3 503 504

901

28

DE-18 Z 11-12
 CHAPTER
指圧器 2
ITEM
INDICATOR DE-18 37

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 00026-029 シアツキベン ASSY ASSY. CYLINDER PRESSURE VALVE 1

1 00026-001 タイ BODY 1
2 00026-002 シアツキベン CYLINDER PRESSURE VALVE 1
3 00026-003 フランジ FLANGE 1
4 00026-004 ロッカクプラグ HEX. PLUG 1
6 00026-006 ジク SHAFT 1

7 00026-007 ナット NUT 1

10 00026-010 セッシュ JOINT 1
28 00026-028 カバー COVER 1

501 X220012000ZZ ナット NUT 2

502 Z335004020ZZ ヘイコウピン STRAIGHT PIN 1
503 Z565001700ZZ マルパッキン GASKET 1
504 Z565002300ZZ マルパッキン GASKET 3

DE-18 Z 11-12
 ITEM
47 51 46 49
CHAPTER

1.1
3
50
48
61 D 62
82 65
63

DE-18 A 15-06
64,501
502,507 507
63
AC
Detail "P"
72 60,503,508

C 54,507,508 P 42,507,508 73,512,513

38
44,506,507

3 4 5 6
506 506 506 506
40,507
21 27 15 52 74 74 74 74
506 506 508 53 78 79 80 81
起動空気配管系統図

25
506 A
34,510

17 1
506 506 57,510,511 56,504,511
2
19 506
506
B 29 101 31,505,509,514
23 508 506
DE-18 STARTING AIR PIPING SYSTEM

506
97
63
506 AS
E
 CHAPTER

起動空気配管系統図 ITEM
3
STARTING AIR PIPING SYSTEM DE-18 1.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

A Ref.3-1.2 始動弁 MAIN AIR STARTING VALVE 1

B Ref.3-1.3 起動回転弁 STARTING ROTARY VALVE 1
C Ref.2-35 制御電磁弁 MAGNETIC VALVE 1
D Ref.3-6.1 燃料抑制・遮断装置 F.O. SHUT DOWN DEVICE 1
E Ref.2-23 燃料噴射ポンプ F.O.INJECTION PUMP 6

1 06425-001 SAカン :パイロット1 S.A. PIPING PILOT 1 1

2 06425-002 SAカン :パイロット2 S.A. PIPING PILOT 2 1
3 06425-003 SAカン :パイロット3 S.A. PIPING PILOT 3 1
4 06425-004 SAカン :パイロット4 S.A. PIPING PILOT 4 1
5 06425-005 SAカン :パイロット5 S.A. PIPING PILOT 5 1

6 06425-006 SAカン :パイロット6 S.A. PIPING PILOT 6 1

15 06425-015 SAカン :シュカンデグチ S.A.PIPING MAIN OUTLET 1
17 06425-017 SAカン :RV デグチ 1 S.A.PIPING 1
19 06425-019 SAカン :RV デグチ 2 S.A.PIPING 1
21 06425-021 SAカン :RV デグチ 3 S.A.PIPING 1

23 06425-023 SAカン :RV デグチ 4 S.A.PIPING 1

25 06425-025 SAカン :RV デグチ 5 S.A.PIPING 1
27 06425-027 SAカン :RV デグチ 6 S.A.PIPING 1
29 06425-029 SAカン :RV イリグチ S.A.PIPING 1
31 06425-031 SAカン :カコウイリグチ S.A.PIPING FRAME INLET 6

34 06425-034 SAカン :メイン S.A.PIPING MAIN 1

38 06425-038 SAカン :FOカットメイン S.A.PIPING F.O. CUT MAIN 1
40 06425-040 SAカン :FOカット エダ -1 S.A.PIPING F.O. CUT BRANCH -1 4
42 06425-042 SAカン :FOカットメインイリグチ S.A.PIPING F.O. CUT MAIN INLET 1
44 06425-044 SAカン :FOカット エダ -3 S.A.PIPING F.O. CUT BRANCH -3 1

46 06425-046 カンバンド PLUNGER 3

47 06425-047 カンバンド PLUNGER 3
48 06425-048 ディスタンス DISTANCE 3
49 06425-049 ディスタンス DISTANCE 3
50 06425-050 ディスタンス DISTANCE 3

51 06425-051 ディスタンス DISTANCE 3

52 06425-052 ディスタンス DISTANCE 1
53 06425-053 カンササエ PIPE SUPPORTER 1
54 06425-054 SAカン :FOカット エダ2 S.A.PIPING F.O. CUT BRANCH 1
56 06425-056 SAカン :シドウベンイリグチ S.A.PIPING S.A. VALVE INLET 1

DE-18 B 15-06
CHAPTER

ITEM
3 起動空気配管系統図
1.1 DE-18 STARTING AIR PIPING SYSTEM

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

57 06425-057 SAカン :シュカンイリグチ S.A.PIPING MAIN PIPE INLET 1

60 06425-060 CAカン :FOカットピストンイリグチ C.A.PIPING F.O. CUT PISTON INLET 1
61 06425-061 CAカン :FOシャダンイリグチ C.A.PIPING F.O. SHOT DOWN INLET 1
62 06425-062 CAカン :FOヨクセイイリグチ C.A.PIPING F.O. CONTROL INLET 1
63 06425-063 CAカン :デンジベンイリグチ C.A.PIPING MAGNETIC VALVE INLET 1

64 06425-064 CAカン :キカンイリグチ C.A.PIPING ENG. INLET 1

65 06425-065 CAカン :シドウベンイリグチ C.A.PIPING SSTARTING VALVE INLET 1
72 06425-072 ブラケット BRACKET 1
73 06425-073 カンササエ PIPE SUPPORTER 1
74 06425-074 ディスタンス DISTANCE 4

78 06425-078 カンササエ PIPE SUPPORTER 1

79 06425-079 カンササエ PIPE SUPPORTER 1
80 06425-080 カンササエ PIPE SUPPORTER 1
81 06425-081 カンササエ PIPE SUPPORTER 1
82 06425-082 SAカン :シドウベンイリグチ S.A.PIPING S.A. VALVE INLET 1

97 06425-097 SAカン :FOカット エダ -1-2 S.A.PIPING F.O. CUT BRANCH -1-2 5

101 06425-11 SAカン :FOカット エダ -3-2 S.A.PIPING F.O. CUT BRANCH -3-2 1

501 X581208001ZZ カンササエASSY PIPE SUPPORTER ASSY 1

502 X581208092ZZ カンササエASSY PIPE SUPPORTER ASSY 1
503 X581210001ZZ カンササエASSY PIPE SUPPORTER ASSY 1
504 Z260302000ZZ Uボルト U-BOLT 2
505 Z560101524ZZ Oリング O-RING 6

506 Z565001000EE マルパッキン GASKET 42

507 Z565001300EE マルパッキン GASKET 9
508 Z565001700EE マルパッキン GASKET 6
509 Z565002100EE マルパッキン GASKET 6
510 Z565002700EE マルパッキン GASKET 2

511 Z565003400EE マルパッキン GASKET 3

512 Z582100055ZZ カンササエ PIPE SUPPORTER 1
513 Z582308094ZZ カンササエ PIPE SUPPORTER 2
514 Z665026000ZZ マルパッキン GASKET 6

DE-18 A 15-06
 CHAPTER

メモ ITEM
3
MEMO DE-18
CHAPTER

ITEM
3 始動弁25A
1.2 DE-18 STARTING AIR VALVE 25A

A521
A31 A24 A25 A20
A507
A508
A23 A506
A26 A51
A19
A16
A502 A504
A14 A15
A503 A505
A5
A13
A8
A6 A1
Section "A-A"
A7 A2
A509 A520
A9
A29
A502 A901
A10
A520 A30 A A38 A53

ᆎേᑯ
MAIN AIR
STARTING VALVE
DAIHATSU DIESEL MFG. CO,LTD.
OSAKA JAPAN

B902 A
B531 B532 B62 B532 B61 B63 B64 B65

DE-18 Z 11-12
 CHAPTER

始動弁25A ITEM
3
STARTING AIR VALVE 25A DE-18 1.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

A901 S108609010 シドウベンASSY ASSY. AIR STARTING VALVE 1

B902 S109605050 シドウベン　 フゾクキキASSY ASSY. ACCESORIES S.A. VALVE 1

A1 S108600010 ホンタイ BODY 1

A2 S108600020 シタフタ COVER 1
A5 S108600050 ベンボウ VALVE SHAFT 1
A6 S108600060 バルブ VALVE 1
A7 S108600070 バルブウケ SEAT VALVE 1

A8 S108600080 バルブオサエ COVER VALVE 1

A9 S108600090 ミゾツキナット HEX. SLOTTED&CASTLE NUT 1
A10 S108600100 ワリピン SPLIT PIN 1
A13 S108600130 ピストンA PISTON 1
A14 S108600140 キー KEY 1

A15 S108600150 キーウケ KEY RETAINER 1

A16 S108600160 トメワ STOP RING 1
A19 S108600190 シリンダー CYLINDER 1
A20 S108600200 ウエフタ COVER 1
A23 S108600230 ピストンB PISTON 1

A24 S108600240 ミゾツキナット HEX. SLOTTED&CASTLE NUT 1

A25 S108600250 ワリピン SPLIT PIN 1
A26 S108600260 バネ SPRING 1
A29 S108600290 ボルト BOLT 4
A30 S108600300 ボルト BOLT 4

A31 S108600310 ボルト BOLT 4

A51 S108600510 フィルター FILTER 1

A38 NN00174020A メイバン NAME PLATE 1

A53 NN00174022A メイバン NAME PLATE 1

A502 Z560205531ZZ Oリング O-RING 2

A503 Z560102435ZZ Oリング O-RING 1
A504 Z560101324ZZ Oリング O-RING 1
A505 Z560101019ZZ Oリング O-RING 1
A506 Z560103435ZZ Oリング O-RING 1

A507 Z560204531ZZ Oリング O-RING 1

A508 Z560100919ZZ Oリング O-RING 1

DE-18 Z 11-12
CHAPTER

ITEM
3 始動弁25A
1.2 DE-18 STARTING AIR VALVE 25A

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

A509 Z560001218ZZ Oリング O-RING 1

A520 Z310010000ZZ バネザガネ SPRING WASHER 8
A521 Z310006000ZZ バネザガネ SPRING WASHER 4

B61 C040040180 チェックバルブタイ BODY CHECK VALVE 1

B62 C040040220 チェックバルブ CHECK VALVE 1
B63 C040070370 バネ SPRING 1
B64 C040070380 シタツキザガネ TANGUED WASHER 1
B65 S109605040 プラグ PLUG 1

B531 X570010000ZZ ロッカクプラグ HEX. PLUG 1

B532 Z565003400EE マルパッキン GASKET 3

DE-18 Z 11-12
 CHAPTER

メモ ITEM
3
MEMO DE-18
CHAPTER

ITEM
3 起動回転弁
1.3 DE-18 STARTING AIR ROTARY VALVE

5 2 3

502

501

503

DE-18 Z 11-12
 CHAPTER

起動回転弁 ITEM
3
STARTING AIR ROTARY VALVE DE-18 1.3

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity
2 06431-002 フタ COVER 1
3 06431-003 カイテンベン ROTARY VALVE 1
4 06431-004 カップリング COUPLING 1
5 06431-005 シート SEAT 1
6 E161300080 ブッシュ BUSH 1

501 X205012095ZZ HTボルト HT BOLT 2

502 Z560205531ZZ Oリング O-RING 1
503 Z560207531ZZ Oリング O-RING 1

DE-18 Z 11-12
CHAPTER

ITEM
3 回転計駆動装置
1.4 DE-18 TACHOMETER DRIVING DEVICE

1 502 2 11

501 12

DE-18 Z 11-12
 CHAPTER

回転計駆動装置 ITEM
3
TACHOMETER DRIVING DEVICE DE-18 1.4

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06611-001 カップリング COUPLING 1

2 06611-002 ユニオンネジ UNION SCREW 1

11 E204250210 フランジブッシュ FLANGE BUSH 1

12 E204250200 カイテンケイツギテ COUPLING TACHOMETER 1

501 Z412002000ZZ スナップリング SNAP RING 1

502 Z565003400EE マルパッキン GASKET 1

DE-18 Z 11-12
 ITEM
CHAPTER

2.1
3

DE-18 A 16-05
P H B
516,60,53,45,23

518,508,12 517.503,6 10,508

T

14,509,518

1,55,501,504,515,517 24,508
19,505 J

507,7 508,26
燃料配管系統図

46

42,514 18,505 I

‚P
D 902 28
41,56,57 20 K

A 30
43
DE-18 FUEL OIL PIPING SYSTEM

E F
 CHAPTER

燃料配管系統図 ITEM
3
FUEL OIL PIPING SYSTEM DE-18 2.1
FO送油ポンプ / F.O.FEED PUMP (1) 機付 / WITH (2) 別置 / WITHOUT

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
A Ref.3-2.6 燃料調圧弁 OIL RELIEF VALVE ASS’Y 1 1
B Ref.3-2.5 燃料濾器 F.O. FILTER 1 1
D Ref.2-33 ヒートボックス HEATBOX FRONT 1 1
E Ref.2-23 燃料噴射ポンプ F.O. INJECTION PUMP 6 6
F Ref.2-24.2 ノズルホルダー NOZZLE HOLDER 6 6
G Ref.3-2.7 シールポット SEAL POT 1 1
H Y142222200ZZ ダンパー DAMPER 1 1
I Ref.3-2.9 逃がし弁 OIL RELIEF VALVE ASS’Y 1
J Ref.3-2.3 燃料送油ポンプ F.O. FEED PUMP 1
K Ref.3-2.8 燃料ブロック F.O. BLOCK 1

902 00073-027 パルスアブソーバASSY ASSY. PULUS ABSORBER(60) 2 2

1 06424-001 FOカン F.O.PIPE 1 1

6 06424-006 ブロック BLOCK 1 1
7 06424-007 FOカン :ロキイリグチ F.O.PIPING FILTER INLET 1 1
10 06424-010 FOカン :ロキデグチ F.O.PIPING HEATBOX INLET 1 1
12 06424-012 FOカン :ヒートボックスイリグチ F.O.PIPING FILTER OUTLET 1 1

14 06424-014 FOカン :キカンデグチ F.O.PIPING ENG. OUTLET 1 1

18 06424-018 ブラケット BRACKET 1 1
19 06424-019 ブラケット BRACKET 1 1
20 06424-020 ブラケット BRACKET 1 1
23 06424-023 FOカン :シールポットイリグチ F.O.PIPING SEAL POT INLET 1 1

24 06424-024 FOカン :ソウユポンプイリグチ F.O.PIPING F.O. FEED PUMP INLET 1

26 06424-026 FOカン :ソウユポンプデグチ F.O.PIPING F.O. FEED PUMP OUTLET 1
28 06424-028 FOカン :チョウアツベンデグチ F.O.PIPING RELIEF VALVE OUTLET 1
30 06424-030 ブラケット BRACKET 1
41 00073-009 フランジ FLANGE 2 2

42 00073-017 パルスアブソーバ PULUS ABSORBER 1 1

43 00073-041 ブラケット BRACKET 2 2
45 00040-024 ユニオンネジ UNION SCREW 1 1
46 00073-159 カバー：パルスアブソーバ COVER:PULUS ABSORBER 1 1
53 00525-006 ユニオンバルブ UNION VALVE 1 1

55 E268685100 Oリング O-RING 12 12

56 00073-160 Oリング O-RING 4 4

DE-18 B 16-05
CHAPTER

ITEM
3 燃料配管系統図
2.1 DE-18 FUEL OIL PIPING SYSTEM
FO送油ポンプ / F.O.FEED PUMP (1) 機付 / WITH (2) 別置 / WITH OUT

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
57 00073-161 Oリング O-RING 2 2
60 00370-001 ツギワ：バルブ BANJO:VALVE 1 1

501 X570001000ZZ ロッカクプラグ HEX. PLUG 1 1

503 X570006000ZZ ロッカクプラグ HEX. PLUG 1 1
504 X572306000DZ トクシュプラグ SPECIAL PLUG 2 2
505 Z260302000ZZ Uボルト U-BOLT 2 2
507 Z541104275AZ パッキン GASKET 1 1

508 Z541203044AZ パッキン GASKET 4 2

509 Z541204054AZ パッキン GASKET 1 1
514 Z560203031DZ Oリング O-RING 1 1
515 Z565001000EE マルパッキン GASKET 1 1
516 Z565001300EE マルパッキン GASKET 2 2

517 Z565002700EE マルパッキン GASKET 3 3

518 Z565003400EE マルパッキン GASKET 2 2

DE-18 A 16-05
 CHAPTER

メモ ITEM
3
MEMO DE-18
 ITEM
CHAPTER

2.2.1
3
P

DE-18 A
E

12-11
27, 505
5, 505 510
510, 511
T
18 25, 505 4 6, 505
510 511, 513 510 510, 511

D
13, 61
504,511

3
17, 61 16
14, 61
504, 511 508
502,510
燃料漏油戻し配管系統図 (低質油）

2, 501, 509
1, 501, 509, 510 A B

C
DE-18 FUEL OIL PIPING-LEAK OIL SYSTEM (HEAVYFUEL OIL)
 CHAPTER

燃料漏油戻し配管系統図 (低質油） ITEM

3
FUEL OIL PIPING-LEAK OIL SYSTEM (HEAVYFUEL OIL) DE-18 2.2.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

A Ref. 2-23 燃料噴射ポンプ F.O. INJECTION PUMP 6

B Ref. 2-24.2 ノズルホルダー NOZZLE HOLDER 6
C Ref. 3-6.3 リミットスイッチ LIMIT SWITCH 1
D リークオイルタンク LEAK OIL TANK (BUILT IN COMMON BED)1
E Ref. 3-25.1 燃料ロキ F.O. FILTER 1

1 06581-001 リークカン：ＦＯフンシャポンプ LEAK PIPING: F.O.INJECTION PUMP 6

2 06581-002 リークカン：ＦＯコウアツブロック-１ LEAK PIPING: F.O.HIGH PRESS BLOCK-1 5
3 06581-003 リークカン：ＦＯコウアツブロック-２ LEAK PIPING: F.O.HIGH PRESS BLOCK-2 1
4 06581-004 リークカン：ＦＯコウアツブロック-３ LEAK PIPING: F.O.HIGH PRESS BLOCK-3 1
5 06581-005 リークカン：ヒートボックスデグチ-１ LEAK PIPING: HEAT BOX OUTLET-1 1

6 06581-006 リークカン：ヒートボックスデグチ-２ LEAK PIPING: HEAT BOX OUTLET-2 1

13 06581-013 リークカン：ＦＯロキウケザラ LEAK PIPING: F.O.FILTER SAUCER 1
14 06581-014 リークカン：ＦＯロキブロウオフ LEAK PIPING: F.O.FILTER BLOW OFF 1
16 06581-016 リークカン：シュウゴウ LEAK PIPING:: GATHERING 1
17 06581-017 リークカン：リークタンク LEAK PIPING: LEAKAGE TANK 1

18 06581-018 リークカン：ヒートボックスデグチ-３ LEAK PIPING: HEAT BOX OUTLET-3 1

25 06581-025 リークカン：ヒートボックスデグチ-４ LEAK PIPING: HEAT BOX OUTLET-4 1
27 06581-027 リークカン：ヒートボックスデグチ-５ LEAK PIPING: HEAT BOX OUTLET-5 1
61 00080-061 ドレンコック DRAIN COCK 3

501 X545201000ZZ ツギボルト BANJO PLUG 12

502 X545202000JZ ツギボルト BANJO PLUG 1
504 X545203000JZ ツギボルト BANJO PLUG 2
505 X545203000ZZ ツギボルト BANJO PLUG 4
508 Z501302800AZ JISパッキン JIS GASKET 2

509 Z565001000EE マルパッキン GASKET 28

510 Z565001300EE マルパッキン GASKET 13
511 Z565001700EE マルパッキン GASKET 10
513 Z585112001ZZ カンバンド PIPE SUPPORTER 4

C
DE-18 B 17-04
 ITEM
CHAPTER

2.2.2
3
P

DE-18 Z
6, 505 E
5, 505
510, 511 510, 511

12-11
F 27, 505
510
506, 510
T
18 25, 505 4
510 511, 513 510

D
13, 61
504,511

3
C

17, 61 16 34 14, 61
504, 511 508 503, 510 502,510
燃料漏油戻し配管系統図 (Ａ重油）

2, 501, 509 29, 510 31, 507, 512

1, 501, 509, 510 A B

A
DE-18 FUEL OIL PIPING-LEAK OIL SYSTEM (DIESEL FUEL OIL)
 CHAPTER

燃料漏油戻し配管系統図 (Ａ重油） ITEM

3
FUEL OIL PIPING-LEAK OIL SYSTEM (DIESEL FUEL OIL) DE-18 2.2.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

A Ref. 2-23 燃料噴射ポンプ F.O. INJECTION PUMP 6

B Ref. 2-24.2 ノズルホルダー NOZZLE HOLDER 6
C Ref. 3-6.3 リミットスイッチ LIMIT SWITCH 1
D リークオイルタンク LEAK OIL TANK (BUILT IN COMMON BED) 1
E Ref. 3-2.5.1 燃料ロキ F.O. FILTER 1
F Ref. 3-2.10 チェックベン CHECK VALVE 1

1 06581-001 リークカン：ＦＯフンシャポンプ LEAK PIPING: F.O.INJECTION PUMP 6

2 06581-002 リークカン：ＦＯコウアツブロック-１ LEAK PIPING: F.O.HIGH PRESS BLOCK-1 5
3 06581-003 リークカン：ＦＯコウアツブロック-２ LEAK PIPING: F.O.HIGH PRESS BLOCK-2 1
4 06581-004 リークカン：ＦＯコウアツブロック-３ LEAK PIPING: F.O.HIGH PRESS BLOCK-3 1
5 06581-005 リークカン：ヒートボックスデグチ-１ LEAK PIPING: HEAT BOX OUTLET-1 1

6 06581-006 リークカン：ヒートボックスデグチ-２ LEAK PIPING: HEAT BOX OUTLET-2 1

13 06581-013 リークカン：ＦＯロキウケザラ LEAK PIPING: F.O.FILTER SAUCER 1
14 06581-014 リークカン：ＦＯロキブロウオフ LEAK PIPING: F.O.FILTER BLOW OFF 1
16 06581-016 リークカン：シュウゴウ LEAK PIPING:: GATHERING 1
17 06581-017 リークカン：リークタンク LEAK PIPING: LEAKAGE TANK 1

18 06581-018 リークカン：ヒートボックスデグチ-３ LEAK PIPING: HEAT BOX OUTLET-3 1

25 06581-025 リークカン：ヒートボックスデグチ-４ LEAK PIPING: HEAT BOX OUTLET-4 1
27 06581-027 リークカン：ヒートボックスデグチ-５ LEAK PIPING: HEAT BOX OUTLET-5 1
29 06581-029 ＦＯロウユカン：ＭＤＯ F.O. LEAK PIPING:: MDO 1
31 06581-031 ブラケット：ＦＯロウユカン：ＭＤＯ BRACKET: F.O. LEAK PIPING: MDO 2

34 06581-034 ＦＯロウユカン：ＭＤＯ-２ F.O. LEAK PIPING: MDO-2 1

61 00080-061 ドレンコック DRAIN COCK 3

501 X545201000ZZ ツギボルト BANJO PLUG 12

502 X545202000JZ ツギボルト BANJO PLUG 1
503 X545202000ZZ ツギボルト BANJO PLUG 1
504 X545203000JZ ツギボルト BANJO PLUG 2
505 X545203000ZZ ツギボルト BANJO PLUG 4

506 X555102020ZZ セッシュザ JOINT SEAT 1

507 Z300012000ZZ ヒラザガネ FLAT WASHER 2
508 Z501302800AZ JISパッキン JIS GASKET 2
509 Z565001000EE マルパッキン GASKET 28
510 Z565001300EE マルパッキン GASKET 17

511 Z565001700EE マルパッキン GASKET 10

512 Z585110002ZZ カンバンド PIPE SUPPORTER 2
513 Z585112001ZZ カンバンド PIPE SUPPORTER 4

A
DE-18 Z 17-04
CHAPTER

ITEM
3 燃料送油ポンプ
2.3 DE-18 FUEL OIL FEED PUMP

3,11

217-5

Detail: "A" 217-4

202

217-3

207 217-8
A

217-7
217-2 217-1
217-6

DE-18 B 17-04
 CHAPTER

燃料送油ポンプ ITEM
3
FUEL OIL FEED PUMP DE-18 2.3
(1) 正転用 NORMAL ROTATION (2) 逆転用 REVERSE ROTATION

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
3 C034400030 オイルポンプ, ２０８ＨＷ-０５６ OIL PUMP, 208HW-056 1
11 C034400110 オイルポンプ, ２０８ＨＷＲ-０５６ OIL PUMP, 208HWR-056 1

202 C034402020 ロータセット、２０８ ROTOR SET,208 1Set 1Set

207 C034402070 シャフトセット、２０８ SHAFT SET,208 1Set 1Set
217 C034405130 シールキット、　ＨＷＶＢ SEALKIT, ＨＷＶＢ 1Set 1Set
（内訳） (Breakdown)
217-1 ボールベアリング BALL BEARING (1)* (1)*
217-2 ボールベアリング BALL BEARING (1)* (1)*
217-3 オイルシール OIL SEAL (1)* (1)*
217-4 オイルシール OIL SEAL (1)* (1)*
217-5 Ｏリング O-RING (1)* (1)*
217-6 Ｏリング O-RING (2)* (2)*
217-7 トップカバーパッキン TOP COVER GASKET (2)* (2)*
217-8 オイルシール OIL SEAL (2)* (2)*

注記
Remarks
＊印部品の単体販売は不可。
Parts (Signal＊) cannot be purchased by itself.

DE-18 B 17-04
CHAPTER

ITEM
3 燃料送油ポンプ取付
2.4 DE-18 FUEL OIL FEED PUMP FITTING

15

514
513
12 20 21 515
14 512
510
508

16 17

502 504
506
11
501 509 13 1
18
511 19 22 505 ,516

503 901
507

DE-18 A 17-04
 CHAPTER

燃料送油ポンプ取付 ITEM
3
FUEL OIL FEED PUMP FITTING DE-18 2.4

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06452-004 FOソウユポンプトリツケASSY ASSY. F.O. FEED PUMP FITTING 1

1 06452-001 ギヤ GEAR 1

11 A596800010 クドウジク DRIVING SHAFT 1

12 A596800020 カバー COVER 1
13 A596800030 ブラケット BRACKET 1
14 E211350020 ディスタンス DISTANCE 1
15 E203150130 ガスケット GASKET 1

16 E211350220 ユニオンネジ UNION SCREW 2

17 E211350270 ザツキキクナット CASTLE NUT WITH SEAT 1
18 E211350291 シム SHIM 4
19 E211350292 シム SHIM 4
20 A596800120 メイバン NAME PLATE 1

21 A596800130 キー SUNK KEY 1

22 A596800060 ローラーチェーンカップリング ROLLER CHAIN COUPLING 1

501 X200008045ZZ ボルト BOLT 4

502 X220008000ZZ ナット NUT 4
503 X220012000ZZ ナット NUT 6
504 Z300020000ZZ ヒラザガネ FLAT WASHER 1
505 Z315006000ZZ ハツキザガネ TOOTHED LOCK WASHER 4

506 Z315008000ZZ ハツキザガネ TOOTHED LOCK WASHER 4

507 Z315012000ZZ ハツキザガネ TOOTHED LOCK WASHER 6
508 Z320004040ZZ ワリピン SPLIT PIN 1
509 Z310006000ZZ バネザガネ SPRING WASHER 4
510 Z400007018ZZ キー KEY 1

511 Z415004030ZZ スプリングピン SPRING PIN 2

512 Z451163060ZZ ベアリング BEARING 1
513 Z451162060ZZ ベアリング BEARING 1
514 Z461406212SC オイルシール OIL SEAL 1
515 Z412006200ZZ スナップリング SNAP RING 1

516 Z212006010ZZ アナツキボルト HEX. SOCKET BOLT 4

DE-18 Z 11-12
CHAPTER
3 燃料濾器
ITEM
2.5.1 DE-18 FUEL OIL FILTER

100
10

271 509 168 189 208 199 204 518 510

515

508

514
246
522
521

507 516
506
505 266

152

517

99 500 , 501 231

519
523,520

125

134
138
252
105
502
503
504
511
121 512
513
107
116 112

INLET OUTLET

DE-18 C 17-04 A C
 CHAPTER

燃料濾器 3
ITEM
FUEL OIL FILTER DE-18 2.5.1
(1)･低質油　HEAVY FUEL OIL (2)･Ａ重油, MARINE DIESEL OIL

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)

10 C060805010 ロキ(HO) FILTER(H. O.) 1

100 C060805100 ロキ(DO) FILTER(D. O.) 1

99 C060800990 ロキホンタイ FILTER BODY 1 1

105 Y529000018 キリカエコック SWITCHING COCK 1 1
107 Y529000038 Oリング O-RING 1 1
112 Y529000041 オサエフタパッキン GASKET : COCK COVER 1 1
116 Y529000046 オサエフタ COCK COVER 1 1

121 Y529000052 ハンドル：チョウセイ HANDLE : ADJUSTMENT 1 1

125 Y529000060 ハンドル HANDLE 1 1
134 Y529000071 トメセンバネ SPRING : NOTCH BAR 1 1
138 Y52900008 トメセン NOTCH BAR 1 1
1 52 Y529000113 ロキケースパッキン GASKET : FILTER CASE 2 2

168 Y529000149 ロキケースバネ SPRING : FILTER CASE 2 2

189 C060801890 パッキン(カンセッシュ) GASKET : CONNECTOR 4 4
199 Y529000199 パッキン(フクロナット) GASKET : SLEEVE NUT 2 2
204 Y529000207 フクロナット SLEEVE NUT 2 2
208 Y529000213 クウキヌキセン PLUG : AIR VENT 2 2

231 C060802310 バルブ BALL VALVE 1 1

246 Y529000301 エレメントASSY ELEMENT 2 2
252 Y529000313 プラグ PLUG : NOTCH BAR 1 1
266 Y529000338 パッキン GASKET : ELEMENT 2 2
271 Y529000347 ラギング LAGGING 1

500 C060603090 スタッド STUD 4 4

501 C060603100 ナット NUT 4 4
502 C060603110 ナット NUT 1 1
503 C060603120 ヒラザガネ WASHER 1 1
504 C060603130 バネザガネ SPRING WASHER 1 1

505 C060603160 スタッド STUD 16 16

506 C060603170 ナット NUT 16 16
507 C060603180 バネザガネ SPRING WASHER 8 8
508 C060603190 ヒラザガネ WASHER 8 8
509 C060603200 フタ（ケース） COVER 2 2

510 C060603300 ベンホンタイ VALVE BODY 2 2

511 C060603360 スタッド STUD 4 4

A C DE-18 B 15-09
CHAPTER
3 燃料濾器
ITEM
2.5.1 DE-18 FUEL OIL FILTER
(1)･低質油　HEAVY FUEL OIL (2)･Ａ重油, MARINE DIESEL OIL

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
512 C060603370 ナット NUT 4 4
513 C060603380 バネザガネ SPRING WASHER 4 4
514 C060603430 Ｏリング O-RING 2 2

515 C060603440 パッキング GASKET 2 2

516 C060805020 ケース CASING 2 2
517 C060805030 エレメントジク ELEMENT SHAFT 2 2
518 C060805040 カンツギテ CONNECTOR 2 2
519 C060805050 ジョイント JOINT 1 1

520 C060805060 メイバン NAME PLATE 1

521 C060805070 メイバン(ケイシキ) NAME PLATE(TYPE) 1 1
522 C060805080 メイバン(セツメイ) NAME PLATE(DESCRIPTION) 1 1
523 C060805090 メイバン(チュウイ) NAME PLATE(CAUTION) 1

DE-18 B 15-09 A C
 CHAPTER

メモ ITEM
3
MEMO DE-18
CHAPTER

ITEM
3 燃料濾器取付
2.5.2 DE-18 FUEL OIL FILTER FITTING

20
506 15 3 16
505


504

503 17
Άᢱ䊨䉨䊐䊤䉾䉲䊮䉫䊐䉞䊦䉺䈱ข䉍ᛒ䈇
Flushing Filter for Fuel Oil Filter

14
501
506
505
2 505
12 502

DE-18 B 15-09 A C
 CHAPTER

燃料濾器取付 ITEM
3
FUEL OIL FILTER FITTING DE-18 2.5.2
(1)･低質油　HEAVY FUEL OIL (2)･Ａ重油, MARINE DIESEL OIL

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
1 06468-001 ブラケット BRACKET 1 1
2 06468-002 ウケザラ SAUCER 1 1
3 06969-003 カバー COVER 1 1
12 E214350110 パッキン GASKET 1 1
14 E214350200 チョウボルト WING BOLT 2 2

15 E214350210 チョウナット WING NUT 2 2

16 E214350230 フラッシングフィルタ FLUSHING FILTER 2
17 00164-011 メイバン NAME PLATE 1 1
20 E214350240 フラッシングフィルタ FLUSHING FILTER 2

501 X200008014ZZ ボルト BOLT 2 2

502 X200012075ZZ ボルト BOLT 4 4
503 X200016030ZZ ボルト BOLT 2 2
504 X220016000ZZ ナット NUT 2 2
505 Z300008000ZZ ヒラザガネ FLAT WASHER 6 6

506 Z310008000ZZ バネザガネ SPRING WASHER 4 4

A C DE-18 B 15-09
CHAPTER

ITEM
3 燃料調圧弁
2.6 DE-18 FUEL OIL RELIEF VALVE

902
901

5 3 509 2 10 8

18 500 507

521, 522

507, 511

View "P"

DE-18 A 12-11
 CHAPTER

燃料調圧弁 ITEM
3
FUEL OIL RELIEF VALVE DE-18 2.6
(1)････Ａ重油／ DIESEL FUEL OIL (2)････低質油／ HEAVY FUEL OIL

番号 パーツコード 部品名称 Name of Parts 数量Quantity

Number Parts Code (1) (2)
901 C034505020 チョウアツベンＡＳＳＹ ASSY. RELIEF VALVE 1
902 C034505030 チョウアツベンＡＳＳＹ ASSY. RELIEF VALVE 1

1 00075-001 チョウアツベンタイ-1 BODY: OIL RELIEF VALVE-1 1 1

2 00075-002 バネオサエ CLAMP: VALVE SPRING 1 1
3 00077-200 バネシート SEAT: VALVE SPRING 1 1
5 00075-004 チョウアツベン RELIEF VALVE 1 1
8 06495-006 フクロナット：LOチョウアツベン CAP NUT: LO RELIEF VALVE 1 1

10 00075-006 チョウセイネジ ADJUSTING SCREW 1 1

18 00075-007 バネ SPRING 1 1

500 X220312000ZZ ナット NUT 1 1

507 Z565001300EE マルパッキン GASKET 4 4
509 Z565003400EE マルパッキン GASKET 1 1
511 X570002000ZZ ロッカクプラグ HEX. PLUG 2 2
521 X570006000ZZ ロッカクプラグ HEX. PLUG 2 2

522 Z565002700EE マルパッキン GASKET 2 2

DE-18 A 12-11
CHAPTER
3 シールポット
ITEM
2.7 DE-18 SEAL POT

4
ࠛ࠴࡟ࡦࠣ࡝ࠦ࡯࡞ ETHYLEN GLYCOL) 2

DE-18 Z 11-12
 CHAPTER
シールポット 3
ITEM
SEAL POT DE-18 2.7

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 00027-001 シールポット SEAL POT 1

2 X200012020ZZ ボルト BORUTO 2
3 Y142121200ZZ ダンプナー DAMPNER 1
4 00027-002 エチレングリコール ETHYLEN GLYCOL 1

DE-18 Z 11-12
CHAPTER

ITEM
3 燃料ブロック
2.8 DE-18 FUEL OIL BLOCK

3 503 11

ㅒᱛᑯ✦ಾࡀࠫ
㧯㧴㧱㧯㧷‫ޓ‬㨂㧭㧸㨂㧱‫ޓ‬㧯㧸㧻㧿㧱㧰‫ޓ‬㧿㧯㧾㧱㨃
▤♽ߩⓨ᳇ᛮ߈ࠍߔࠆᤨએᄖߪ
ᔅࠄߕߎߩࡀࠫࠍ✦߼ߡ߅ߊߎߣ‫ޕ‬
㨀㨛‫ޓ‬㨠㨕㨓㨔㨠㨑㨚‫ޓ‬㨠㨔㨕㨟‫ޓ‬㨟㨏㨞㨑㨣㧘㨑㨤㨏㨑㨜㨠
㨐㨑㨒㨘㨍㨠㨕㨚㨓‫ޓ‬㨠㨔㨑‫ޓ‬㨜㨕㨜㨕㨚㨓‫ޓ‬㨘㨕㨚㨑㨟㧚

505 13 501
504 502 12
14 15

506

Section "A-A"

901

DE-18 Z 11-12
 CHAPTER

燃料ブロック ITEM
3
FUEL OIL BLOCK DE-18 2.8

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06424-004 ブロックASSY ASSY. BLOCK 1

3 06424-003 ブロック BLOCK 1

11 00408-017 メイバン NAME PLATE 1

12 C033110050 チェックベン CHECK VALVE 1
13 C033140120 ストッパ STOPPER 1
14 C033170190 チェックバルブタイパッキン GASKET CHECK VALVE BODY 1
15 C033170200 ツメセン PLUG 1

501 X200005038ZZ ボルト BOLT 6

502 X222308000ZZ コガタナット NUT 1
503 Z352020500ZZ リベット RIVET 2
504 Z445004000ZZ ボール BALL 1
505 Z560100719ZZ Oリング O-RING 1

506 Z571302000ZZ テーパプラグ TAPER PLUG 2

DE-18 Z 11-12
CHAPTER

ITEM
3 逃がし弁
2.9 DE-18 FUEL OIL RELIFE VALVE

902

22 504 503 502 501

5 22 22 7 1 13 9 8

DE-18 Z 11-12
 CHAPTER

逃がし弁 ITEM
3
FUEL OIL RELIFE VALVE DE-18 2.9

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

902 チョウアツベンＡＳＳＹ ASSY. RELIEF VALVE 1

1 C033700010 チョウアツベン RELIEF VALVE 1

5 C033700050 チョウアツベンタイ CASE : RELIEF VALVE 1
7 NN00282005 オサエ：バネ CAP NUT : SPRING 1
8 NN00282006 フクロナット CAP NUT 1
9 NN00017003 シート：バネ SHEET : SPRING 1

13 C033700130 バネ SPRING 1
22 NN00282007 シール SEAL 3

501 X220308000ZZ ナット NUT 1

502 X251108050ZZ トメネジ SET SCREW 1
503 Z565002100CC マルパッキン GASKET 1
504 Z545128100ZZ ツギワ BANJO 1

DE-18 Z 11-12
CHAPTER

ITEM
3 チェック弁（Ａ重油）
2.10 DE-18 CHECK VALVE (DIESEL FUEL OIL)

1 501

503

502

A
DE-18 Z 12-11
 CHAPTER

チェック弁（Ａ重油） ITEM
3
CHECK VALVE (DIESEL FUEL OIL) DE-18 2.10

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 C049305010 カンビヒン：チェックベン ASSY. CHECK VALVE 1

1 C049340010 タイ：チエツクバルブ BODY: CHECK VALVE 1

2 C049370061 バネ SPRING 1

501 X570001000ZZ ロッカクプラグ HEX. PLUG 1

502 Z445002000ZZ ボール BALL 1
503 Z565001000EE マルパッキン GASKET 1

A
DE-18 Z 12-11
CHAPTER

ITEM
3 潤滑油配管（発電機関）
3.1.1 DE-18 LUBRICATING OIL PIPING (GENERATOR ENGINE)

128 , 516 44 515 , 501 128 , 516 502 , 516

49 K 47 42 122
R
517 230
121
ＯＵ
Ｔ

ＩＮ

515 , 501
Detail “ R ”

516 , 502
after M66

after M66
ion ed UR

ion ed UR
explos replac IACS

explos replac IACS

an to be acc.

an to be acc.
has ation

has ation
arrest al install

arrest al install
Flame vertic

Flame vertic
er

er
for

for
Tested

Tested

Explosion Relief Valve Explosion Relief Valve

Model: Serial No: Model: Serial No:
Part No: Date: Part No: Date:
Opening Pressure: Opening Pressure:

Hoerbiger Ventilwerke GmbH & Co KG, Braunhuberg.23 Hoerbiger Ventilwerke GmbH & Co KG, Braunhuberg.23
A-1110 VIENNA; Made in AUSTRIA A-1110 VIENNA; Made in AUSTRIA

Q P

515 , 220

Detail “ O ”

H G C B
515 , 505 521

40 520
517 , 503
65

O 502 , 516
35

38

View “ Q ” View “ P ”

DE-18 B 17-03
 CHAPTER

潤滑油配管（発電機関） ITEM
3
LUBRICATING OIL PIPING (GENERATOR ENGINE) DE-18 3.1.1
チェックバルブ／CHECK VALVE (1)･･･無し／･WITHOUT    (2)･･･有り／･WITH

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
B Ref. 3-4.2 ＣＷポンプ（ＨＴ） C.W. PUMP (H.T.) 1 1
C Ref. 3-4.2 ＣＷポンプ（ＬＴ） C.W. PUMP (L.T.) 1 1
G Ref. 3-1.3 起動回転弁 STARTING AIR ROTARY VALVE 1 1
H Ref. 2-26.3 ガバナ GOVERNOR 1 1
K Ref. 2-23 燃料噴射ポンプ F.O. INJECTION PUMP 6 6

35 06486-035 LOカン:CWポンプ 1 L.O.PIPE: CW PUMP 1 1 1

38 06486-038 LOカン:ガバナ L.O.PIPE: GOVERNOR 1 1
40 06486-040 LOカン:ロータリバルブ L.O.PIPE: ROTARY VALVE 1 1
42 06486-042 LOカン:プランジャチュウユ:メインイリグチ L.O.PIPE PLUNGER L.O.: MAIN INLET 1 1
44 06486-044 LOカン:プランジャチュウユ:メイン L.O.PIPE PLUNGER L.O.: MAIN 1 1

47 06486-047 LOカン:プランジャチュウユ:エダ1 L.O.PIPE PLUNGER L.O.: BRANCH-1 5 5

49 06486-049 LOカン:プランジャチュウユ:エダ2 L.O.PIPE PLUNGER L.O.: BRANCH-2 1 1
65 06486-065 LOカン:CWポンプ 2-1 L.O. PIPE: CW PUMP 2-1 1 1
121 06486-121 LOカン:プランジャチュウユ:メインイリグチ-1 L.O.PIPE PLUNGER L.O.: MAIN INLET-1 1
122 06486-122 LOカン:プランジャチュウユ:メインイリグチ-2 L.O.PIPE PLUNGER L.O.: MAIN INLET-2 1

128 00080-028 フィルター FILTER 6 6

220 E208750020Z ツギボルト BANJO PLUG 1 1
230 00386-003 チェックベン CHECK VALVE 1

501 X545201000ZZ ツギボルト BANJO PLUG 6 6

502 X545202000ZZ ツギボルト BANJO PLUG 3 3
503 X545203000ZZ ツギボルト BANJO PLUG 1 1
505 X545401000ZZ カサネツギボルト DOUBLE BANJO PLUG 1 1
515 Z565001000EE マルパッキン GASKET 17 17

516 Z565001300EE マルパッキン GASKET 18 18

517 Z565001700EE マルパッキン GASKET 3 3
520 Z585110000ZZ カンバンド PIPE SUPPORTER 1 1
521 Z585508002ZJ カンバンド PIPE SUPPORTER 1 1

DE-18 B 17-03
CHAPTER

ITEM
3 潤滑油配管（主機関）
3.1.2 DE-18 LUBRICATING OIL PIPING (PROPULSION ENGINE)

9, 504, 505, 508, 514

64, 506 35, 502, 512 5, 505, 508 12, 509 14, 503, 508, 513
2, 506 3, 505 13, 509
B 4 D E
L.O. Auxiliary tank

from Other engine

A to Other engine

F Pressure transmitter
(Display and alarm)
65, 501, Orifice Pressure switch
(For emergency stop)
511, 515

Piston Piston
70, 506 Main No.6 No.1
bearing
38, 120, 501,
510, 511, 516
Mist

Rocker arm Rocker arm

C
G
128
J
H
L.O. TANK
䌍
I 69, 507
DRAIN

44 128
to Saucer of fuel oil Filter

42, 501, 511, 512 47, 500, 510, 511 49, 500, 510, 511 56

DE-18 Z 12-11
 CHAPTER

潤滑油配管（主機関） ITEM
3
LUBRICATING OIL PIPING (PROPULSION ENGINE) DE-18 3.1.2
(1)･･･正転／･NORMAL ROTATION (2)･･･逆転／･REVERCE ROTATION

番号 パーツコード 部品名称 Name of Parts 数量Quantity

Number Parts Code (1) (2)
A Ref. 3-3.6 LOポンプ L.O. PUMP 1 1
B Ref. 3-4.2 ＣＷポンプ（ＨＴ） C.W. PUMP (H.T.) 1 1
C Ref. 3-4.2 ＣＷポンプ（ＬＴ） C.W. PUMP (L.T.) 1 1
D Ref. 3-3.4 ＬＯクーラ L.O. COOLER 1 1
E Ref. 3-3.5 ＬＯ自動逆洗ロキ AUTOMATIC BACK WASHING L.O. FILTER 1 1
F Ref. 3-3.7 ＬＯ調圧弁 L.O. RELIEF VALVE 1 1
G Ref. 3-1.3 起動回転弁 STARTING AIR ROTARY VALVE 1 1
H Ref. 2-26.3 ガバナ GOVERNOR 1 1
I ＬＯプライミングポンプ L.O. PRIMING PUMP 1 1
J Ref. 2-30 過給機取付 TURBOCHARGER FITTING 1 1

2 06486-002 ＬＯカン：ポンプデグチ１ L.O. PIPING: PUMP OUTLET 1 1

3 06486-003 ＬＯカン：ポンプデグチ２ L.O. PIPING: PUMP OUTLET 2 1 1
4 06486-004 ブラケットＬＯカン：ポンプデグチ BRACKET: LO PIPING: PUMP OUTLET 1 1
5 06486-005 ＬＯカン：クーライリグチ LO PIPING: COOLER INLET 1 1
9 06486-009 ＬＯカン：クーラデグチ LO PIPING: COOLER OUTLET 1 1

12 06486-012 ブロック：ＬＯロキイリグチ BLOCK: LO FILTER INLET 1 1

13 06486-013 ブロック：ＬＯロキデグチ BLOCK: LO FILTER OUTLET 1 1
14 06486-014 ＬＯカン：ギャクセンユ LO PIPING: BACK FLASH 1 1
35 06486-035 ＬＯカン：ＣＷポンプ１ LO PIPING: CW PUMP 1 1 1
38 06486-038 ＬＯカン：ロータリーバルブ L.O. PIPING: ROTARY VALVE 1 1

42 06486-042 ＬＯカン：プランジャチュウユ：メインイリグチ L.O.PIPE PLUNGER L.O.: MAIN INLET 1 1

44 06486-044 ＬＯカン：プランジャチュウユ：メイン L.O.PIPE PLUNGER L.O.: MAIN 1 1
47 06486-047 ＬＯカン：プランジャチュウユ：エダ１ L.O.PIPE PLUNGER L.O.: BRANCH1 5 5
49 06486-049 ＬＯカン：プランジャチュウユ：エダ２ L.O.PIPE PLUNGER L.O.: BRANCH2 1 1
56 06486-056 ラギング：ヒサンボウシＬＯ LAGGING: ANTI-SPLASHING INSULATION: LO 1 1

64 06486-064 ＬＯカン：ポンプデグチ１：ギャクテン L.O. PIPING: PUMP OUTLET 1: REVERSE ROTATION 1

65 06486-065 ＬＯカン：ＣＷポンプ　 ２－１ LO PIPING: CW PUMP 2-1 1 1
69 06486-069 ＬＯカン：サクション１ L.O. PIPING: SUCTION 1 1 1
70 06486-070 ＬＯカン：サクション２ L.O. PIPING: SUCTION 2 1 1
120 E208750020 ツギボルト BANJO PLUG 1 1

128 00080-028 フィルター FILTER 6 6

DE-18 Z 12-11
CHAPTER

ITEM
3 潤滑油配管（主機関）
3.1.2 DE-18 LUBRICATING OIL PIPING (PROPULSION ENGINE)
(1)･･･正転／･NORMAL ROTATION (2)･･･逆転／･REVERCE ROTATION

番号 パーツコード 部品名称 Name of Parts 数量Quantity

Number Parts Code (1) (2)
500 X545201000ZZ ツギボルト BANJO PLUG 6 6
501 X545202000ZZ ツギボルト BANJO PLUG 3 3
502 X545203000ZZ ツギボルト BANJO PLUG 1 1
503 X545204000ZZ ツギボルト BANJO PLUG 1 1
504 X570006000ZZ ロッカクプラグ HEX. PLUG 1 1

505 Z501207000AZ ＪＩＳパッキン JIS GASKET 3 3

506 Z501208000AZ ＪＩＳパッキン JIS GASKET 2 2
507 Z506308000AZ １０Ｋパッキン 10K GASKET 2 2
508 Z560105257ZZ Ｏリング O-RING 3 3
509 Z560107557ZZ Ｏリング O-RING 3 3

510 Z565001000EE マルパッキン GASKET 14 14

511 Z565001300EE マルパッキン GASKET 18 18
512 Z565001700EE マルパッキン GASKET 3 3
513 Z565002100EE マルパッキン GASKET 2 2
514 Z565002700EE マルパッキン GASKET 1 1

515 Z585110000ZZ カンバンド PIPE SUPPORTER 1 1

516 Z585508002ZJ カンバンド PIPE SUPPORTER 1 1

DE-18 Z 12-11
 CHAPTER

メモ ITEM
3
MEMO DE-18
CHAPTER

ITEM
3 潤滑油ポンプ配管（発電機関）
3.1.3 DE-18 L. O. PUMP PIPING (GENERATOR ENGINE)

508,504
9
513

13
506 504,508
502 510
510 505,508

14,501
12
514,509 511 51
503 502 507
511 512

DE-18 Z 17-03
 CHAPTER

潤滑油ポンプ配管（発電機関） ITEM
3
L. O. PUMP PIPING (GENERATOR ENGINE) DE-18 3.1.3

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

A Ref. 3-3.6 LOポンプ L.O. PUMP 1

9 07155-009 LOカン:クーライリグチ L.O PIPING:COOLER INLET 1

11 06486-001 LOカン:サクション L.O PIPING:SUCTION 1
12 06486-002 LOカン:ポンプデグチ 1 L.O PIPING:PUMP OUTLET 1 1
13 06486-003 LOカン:ポンプデグチ 2 L.O PIPING:PUMP OUTLET 2 1
14 06486-004 ブラケット BRACKET 1

501 X200012020ZZ ボルト BOLT 4

502 X200012030ZZ ボルト BOLT 6
503 X200012035ZZ ボルト BOLT 4
504 X200012055ZZ ボルト BOLT 7
505 X200012060ZZ ボルト 1
BOLT
506 X200012085ZZ ボルト BOLT 2
507 X200016030ZZ ボルト BOLT 4
508 X220012000ZZ ナット NUT 8
509 X570004000ZZ ロッカクプラグ HEX.PLUG 1
510 Z501207000AZ JISパッキン JIS GASKET 2

511 Z501208000AZ JISパッキン JIS GASKET 2

512 Z501209000AZ JISパッキン JIS GASKET 1
513 Z560107557ZZ Oリング O-RING 1
514 Z565002100EE マルパッキン GASKET 1

DE-18 Z 17-03
CHAPTER

ITEM
3 プライミングポンプ配管（発電機関）
3.1.4 DE-18 PRIMING PUMP PIPING (GENERATOR ENGINE)

504

501

30
A
1

503,21 502 502 28

23 35 24 27
26

33

Detail”A”

DE-18 Z 17-03
 CHAPTER

プライミングポンプ配管（発電機関） ITEM
3
PRIMING PUMP PIPING (GENERATOR ENGINE) DE-18 3.1.4

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

D Ref. 3-3.1.2#13 LOカン：ポンプデグチ L.O. PIPE:PUMP OUTLET 1

I LOプライミングポンプ L.O. PRIMING PUMP 1

1 07154-001 LOカン:ポンプデグチ L.O PIPING:PUMP OUTLET 1

21 06486-021 LOカン:ポンプイリグチ 1 L.O PIPING:PUMP INLET 1 1
23 06486-023 ブラケット BRACKET 1
24 06486-024 LOカン:ポンプイリグチ 2 L.O PIPING:PUMP INLET 2 1
26 06486-026 タイ BODY 1

27 06486-027 チェックベン CHECK BALVE 1

28 06486-028 ガスケット GASKET 1
30 06486-058 ブラケット BRACKET 1
33 00080-009 ガスケット GASKET 2
35 00080-056 フレキホース FLEXIBLE HOSE 1

501 Z260102000ZZ Uボルト U-BOLT 1

502 Z501302800AZ JISパッキン JIS GASKET 2
503 Z501303500AZ JISパッキン JIS GASKET 1
504 Z565003400EE マルパッキン GASKET 1

DE-18 Z 17-03
CHAPTER

ITEM
3 潤滑油ロキ取付（発電機関）
3.1.5 DE-18 L. O. FILTER FITTING (GENERATOR ENGINE)

505,509 E 507 14 502 F

17 508

501

508 508 13 504 508 12 506 503 501

DE-18 Z 17-03
 CHAPTER

潤滑油ロキ取付（発電機関） ITEM
3
L. O. FILTER FITTING (GENERATOR ENGINE) DE-18 3.1.5

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

E Ref. 3-3.5 ＬＯ自動逆洗ロキ AUTOMATIC BACK WASHING L.O. FILTER1

F Ref. 3-3.4 ＬＯクーラ L.O. COOLER 1

12 06486-012 ブロック BLOCK 1

13 06486-013 ブロック BLOCK 1
14 06486-014 LOカン L.O PIPING 1
17 07157-002 LOカン:クーラデグチ L.O PIPING:COOLER OUTLET 1

501 X200012030ZZ ボルト BOLT 6

502 X200012045ZZ ボルト BOLT 4
503 X200012085ZZ ボルト BOLT 2
504 X200016040ZZ ボルト BOLT 6
505 X545204000ZZ ツギボルト BANJO PLUG 1

506 Z501207000AZ JISパッキン JIS GASKET 1

507 Z560105257ZZ Oリング O-RING 1
508 Z560107557ZZ Oリング O-RING 4
509 Z565002100EE マルパッキン GASKET 2

DE-18 Z 17-03
CHAPTER

ITEM
3 過給機潤滑油配管系統図（AT,TPS）
3.2.1 DE-18 T/C L.O. PIPING SYSTEM(AT,TPS)

A
2
1
3

501

502

DE-18 Z 11-12
 CHAPTER

過給機潤滑油配管系統図（AT,TPS） ITEM
3
T/C L.O. PIPING SYSTEM(AT,TPS) DE-18 3.2.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

A 過給機 TURBOCHARGER 1
B Ref.2-33 ヒートボックス HEAT BOX 1

1 06471-001 ブロック BLOCK 1

2 06471-002 T/C LO カン T/C L.O. PIPE 1
3 06471-003 LOカン L.O. PIPE 1

501 Z501102200AZ JISパッキン JIS GASKET 3

502 Z565001700EE マルパッキン GASKET 4

DE-18 A 17-03
CHAPTER

ITEM
3 過給機潤滑油配管系統図（MET）
3.2.2 DE-18 T/C L.O. PIPING SYSTEM(MET)

A
10
501
8
502
503

501
P 9

504
6 7 B
502
502

501
1
3

23 503 21 502 22 502

24 505 506 25 26 901

Detail "P"

DE-18 Z 11-12
 CHAPTER

過給機潤滑油配管系統図（MET） ITEM
3
T/C L.O. PIPING SYSTEM(MET) DE-18 3.2.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

A 過給機 TURBOCHARGER 1
B Ref.2-33 ヒートボックス HEAT BOX 1

901 06471-011 LOチョウアツベンASSY ASSY. L.O. RELIEF VALVE 1

1 06471-001 ブロック BLOCK 1

3 06471-003 LOカン L.O. PIPE 1
6 06471-006 LOカン L.O. PIPE 1
7 06471-007 T/C LO カン T/C L.O. PIPE 1
8 06471-008 T/C LO カン T/C L.O. PIPE 1

9 06471-009 ブロック BLOCK 1

10 06471-010 ブロック BLOCK 1

21 NN00071001A タイ BODY 1
22 NN00071002A チョウアツベン RELIEF VALVE 1
23 NN00071003A フクロナット CAP NUT 1
24 NN00071004A チョウセイネジ ADJUSTING SCREW 1
25 NN00071005A ケース CASE 1

26 NN00071006A バネ SPRING 1

501 Z501102200AZ JISパッキン JIS GASKET 5

502 Z565002100BZ マルパッキン GASKET 9
503 Z565001700BZ マルパッキン GASKET 2
504 Z565002700BZ マルパッキン GASKET 1
505 X220306000ZZ ナット NUT 1

506 Z300004000ZZ ヒラザガネ FLAT WASHER 1

DE-18 Z 11-12
CHAPTER

ITEM
3 LOクーラー取付
3.3 DE-18 L.O. COOLER FITTING

505 11
504 507 12 501

503 502

506

DE-18 Z 11-12
 CHAPTER

潤滑油冷却器取付 ITEM
3
L.O. COOLER FITTING DE-18 3.3

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

1 06467-001 ブロック BLOCK 1

11 00239-012 プラグ PLUG 6

12 00239-025 マルパッキン GASKET 6

501 X200016045ZB ボルト BOLT 10

502 X200016080ZZ ボルト BOLT 2
503 X200016120ZZ ボルト BOLT 2
504 X200016220ZZ ボルト BOLT 4
505 X210016070ZZ スタッド STUD 2

506 Z560107557ZZ Oリング O-RING 4

507 X220016000ZZ ナット NUT 2

DE-18 A 17-07
CHAPTER

ITEM
3 潤滑油冷却器（プレート式）
3.4 DE-18 L.O. COOLER (PLATE TYPE)

901

35,34,27,25,24 2 4 8,505

501,502

12

503 3 5

10,504

t=0.6 t=0.5

Detail "No. 24" Detail "No. 25" Detail "No. 27" Detail "No. 34" Detail "No. 35"

DE-18 B 16-05
 CHAPTER

潤滑油冷却器（プレート式） ITEM
3
L.O. COOLER (PLATE TYPE) DE-18 3.4

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity
901 06538-001 LOクーラーASSY ASSY. L.O. PLATE HEAT EXCHANGER 1

2 06538-002 フタ FRONT FRAME 1

3 06538-003 トリツケイタ REAR FRAME 1
4 06538-004 スペーサー：１ SPACER-1 8
5 06538-005 スペーサー：２ SPACER-2 2
6 06538-006 スペーサー：３ SPACER-3 2

8 06538-008 ボルト BOLT 8

10 06538-010 ボルト BOLT 4
12 06538-012 カバー COVER 1
24 06538-024 プレート:E2 END PLATE 2 1
25 06538-025 プレート:4H CHANNEL PLATE-B 64

27 06538-027 プレートE1 END PLATE 1 1

34 06538-034 ガスケット:E1 GASKET:E1 65
35 06538-035 ガスケット:E2 GASKET:E2 1

501 Z300010000ZZ ヒラザガネ FLAT WASHER 6

502 X200010010ZZ ボルト BOLT 6
503 X200020050ZB ボルト BOLT 8
504 Z300016000ZB ヒラザガネ FLAT WASHER 2
505 Z300020000ZB ヒラザガネ FLAT WASHER 8

DE-18 B 16-05
CHAPTER

ITEM
3 自動逆洗潤滑油濾器
3.5 DE-18 AUTOMATIC BACK WASHING L.O. FILTER

902
901 75

84
91 45 56 43 69
C
D

A 15
16
83

41 42 49 52 53 47 40 55 46 8 53 28 D C
48 56 42 86 60
57 61
20 84
21 91 18 36 22 84 59
100 91 65 64
57 14
82
63
62
47
13

78
70
32 81
96 17 67
97 86 89 50 86
30 51
44 49

93 35
Detail"A"
90 101
99
92 62
86
58
11 12 66
85
54
98 94
86
95 88
Section "C-C" Detail"B" Section "D-D"

DE-18 A 16-05
 CHAPTER

自動逆洗潤滑油濾器 ITEM
3
AUTOMATIC BACK WASHING L.O. FILTER DE-18 3.5
バイパスバルブ　BYPASS VALVE (1) ･･無し　WITHOUT (2) ･･有り　WITH

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
901 05969-039 LOジドウギャクセンロキASSY ASSY. L.O. AUTO BACKWASH FILTER 1
902 05969-039 LOジドウギャクセンロキASSY ASSY. L.O. AUTO BACKWASH FILTER 1

8 05969-008 フィルター FILTER 19 19

11 05969-011 ハウジング HOUSING 1 1
12 05969-012 タービンインペラ TURBINE IMPELLER 1 1
13 05969-013 ブッシュ BUSH 1 1
14 05969-014 ブッシュ BUSH 1 1

15 05969-015 ノズル NOZZLE 1 1

16 05969-016 バネ SPRING 1 1
17 05969-017 インジケータ INDICATOR 1 1
18 05969-018 サンポウコック THREEWAY COCK 2 2
20 05969-020 スタッド STUD 8 8

21 05969-021 ナット NUT 8 8

22 05969-022 ロッカクプラグ HEX. PLUG 1 1
28 05969-028 Oリング O-RING 1 1
30 05969-030 Oリング O-RING 38 38
32 05969-032 メイバン NAME PLATE 1 1

35 05969-035 カバー COVER 1 1

36 05969-036 LOカン L.O. PIPE 1 1
40 05969-040 ハウジング HOUSING 1 1
41 05969-041 カバー COVER 1 1
42 05969-042 アーム ARM 1 1

43 05969-043 パイプ PIPE 1 1

44 05969-044 プレート PLATE 1 1
45 05969-045 プレート PLATE 1 1
46 05969-046 フィルター FILTER 1 1
47 05969-047 ジク SHAFT 2 2

48 05969-048 ベアリング BEARING 2 2

49 05969-049 ピン PIN 2 2
50 05969-050 ソケットヘッドボルト SOCKET HEAD BOLT 6 6
51 05969-051 ブラケット BRACKET 2 2
52 05969-052 Oリング O-RING 1 1

53 05969-053 Oリング O-RING 2 2

54 05969-054 Oリング O-RING 1 1
55 05969-055 パイプ PIPE 1 1

DE-18 A 16-05
CHAPTER

ITEM
3 自動逆洗潤滑油濾器
3.5 DE-18 AUTOMATIC BACK WASHING L.O. FILTER
バイパスバルブ　BYPASS VALVE (1) ･･無し　WITHOUT (2) ･･有り　WITH

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
56 05969-056 プレート PLATE 2 2
57 05969-057 リング RING 6 6

58 05969-058 ジョイント JOINT 1 1

59 05969-059 Oリング O-RING 2 2
60 05969-060 ザガネ WASHER 2 2
61 05969-061 プレート PLATE 2 2
62 05969-062 ピン PIN 2 2

63 05969-063 Oリング O-RING 2 2

64 05969-064 ソケットヘッドボルト SOCKET HEAD BOLT 2 2
65 05969-065 ベアリング BEARING 2 2
66 05969-066 ソケットヘッドボルト SOCKET HEAD BOLT 4 4
67 05969-067 ガイド GUIDE 1 1

69 05969-069 リング RING 1 1

70 05969-070 カップリング COUPLING 1 1
75 05969-082 バルブ VALVE 4
78 05969-088 Oリング O-RING 1 1
81 00368-021 ギヤ GEAR 1 1

82 00368-029 ボルト BOLT 1 1

83 00368-030 ピン PIN 1 1
84 00368-036 ロッカクプラグ HEX. PLUG 4 4
85 00368-041 ボルト BOLT 1 1
86 00368-042 ソケットヘッドボルト SOCKET HEAD BOLT 20 20

88 00368-046 ザガネ WASHER 1 1

89 00368-049 セッシュ JOINT 4 4
90 00368-056 Oリング O-RING 1 1
91 00368-058 ガスケット GASKET 4 4
92 00368-059 ガスケット GASKET 1 1

93 00368-060 Oリング O-RING 1 1

94 00368-061 バネザガネ SPRING WASHER 3 3
95 00368-063 ナット NUT 1 1
96 00368-065 メイバン NAME PLATE 1 1
97 00368-066 メイバン NAME PLATE 1 1

98 00368-070 ガラスキャップ GLASS CAP 1 1

99 E294175180 ギヤ GEAR 1 1
100 E294175320 ガスケット GASKET 1 1
101 E294175330 ブッシュ BUSH 1 1

DE-18 A 16-05
 CHAPTER

メモ ITEM
3
MEMO DE-18
CHAPTER

ITEM
3 潤滑油ポンプ＆取付
3.6 DE-18 LUBRICATING OIL PUMP & FITTING

901
20 2

511 501 13 15 510

503

16 506 504

A A

502
19

12 508 22
505
509
14 507
512
21

17 18 11
Section "A-A"

DE-18 Z 11-12
 CHAPTER

潤滑油ポンプ＆取付 ITEM
3
LUBRICATING OIL PUMP & FITTING DE-18 3.6

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 C034790070 L.O.ポンプASSY ASSY. L.O. PUMP 1

2 06553-002 ギヤ GEAR 1

11 00077-009 バネ SPRING 1
12 C034700060 ポンプタイフタ L.O. PUMP COVER 1
13 C034700120 タイ BODY 1
14 C034700240 ポンプモトギヤ L.O. PUMP DRIVING GEAR 1
15 C034700250 ポンプウケギヤ L.O. PUMP DRIVEN GEAR 1

16 C034705010 ディスタンス DISTANCE 1

17 C036340240 アンゼンベン SAFETY VALVE 1
18 C036340260 アンゼンベンバネウケ RETAINER SAFETY VALVE SPRING 1
19 E170500470 ベアリング BEARING 5
20 E203150130 ガスケット GASKET 1

21 G003100370 アンゼンベンバネオサエ CAP SAFETY VALVE SPRING 1

22 G003100390 ヒラザガネ FLAT WASHER 1

501 X205012030ZZ HTボルト HT BOLT 6

502 X225122000ZZ キクナット CASTLE 1
503 X670010000ZZ ロッカクプラグ HEX. PLUG 1
504 Z320005040ZZ ワリピン SPLIT PIN 1
505 Z335008025ZZ ヘイコウピン STRAIGHT PIN 2

506 Z400010025ZZ キー KEY 1

507 Z412005000ZZ スナップリング SNAP RING 1
508 Z412005500ZZ スナップリング SNAP RING 1
509 Z461355511SC オイルシール OIL SEAL 1
510 Z571501000ZZ テーパプラグ TAPER PLUG 1

511 Z665010000ZZ マルパッキン GASKET 1

512 Z665034000ZZ マルパッキン GASKET 1

DE-18 Z 11-12
CHAPTER

ITEM
3 潤滑油調圧弁
3.7 DE-18 LUBRICATING OIL RELIEF VALVE

502
901

504

7 1 9 8 4 5 2
503
505
6
3
501

DE-18 Z 11-12
 CHAPTER

潤滑油調圧弁 ITEM
3
LUBRICATING OIL RELIEF VALVE DE-18 3.7

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06495-010 LO チョウアツベンASSY ASSY. L.O. RELIFE VALVE 1

1 06495-001 タイ BODY 1
2 06495-002 フタ COVER 1
3 06495-003 チョウセイネジ ADJUSTING SCREW 1
4 06495-004 シート SEAT 1
5 06495-005 ガスケット GASKET 1

6 06495-006 フクロナット CAP NUT 1

7 06495-007 ベン VALVE 1
8 06495-008 バネ SPRING 1
9 06495-009 バネ SPRING 1

501 X200008025ZZ ボルト BOLT 4

502 X200012030ZZ ボルト BOLT 5
503 X220312000ZZ ナット NUT 1
504 Z560108057ZZ Oリング O-RING 2
505 Z665012000ZZ マルパッキン GASKET 2

DE-18 Z 11-12
CHAPTER

ITEM
3 潤滑油温調弁
3.8 DE-18 LUBRICATING OIL THERMOSTAT VALVE

901

19 23 2 20 602 25 605

601

604

606 16 18 603 17

600

View "P"

DE-18 Z 11-12
 CHAPTER

潤滑油温調弁 ITEM
3
LUBRICATING OIL THERMOSTAT VALVE DE-18 3.8

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 AE27079001A LOオンチョウベンASSY L.O. THERMOSTAT ASSY. 1

2 AE27079002A タイ BODY 1
3 AE27079003A フタ COVER 1
4 AE27079004A チョウセイボルト ADJUSTING BOLT 1
16 AE01079006A ガイド GUIDE 1
17 AE01079007A フクロナット CAP NUT 1

18 AE01079008A ロックナット LOCK NUT 1

19 AE01079009A バネ SPRING 1
20 AE01079010A バネ SPRING 1
23 AE01079013A ペレット THERMOSTAT ASSY. 1
25 S104100150Z バルブ VALVE 1

600 X200012030ZZ ボルト BOLT 4

601 Z212008025ZZ アナツキボルト HEX. SOCKET BOLT 4
602 Z300114000ZZ ヒラザガネ FLAT WASHER 1
603 Z560101124ZZ Oリング O-RING 1
604 Z560106557ZZ Oリング O-RING 1

605 Z560110557ZZ Oリング O-RING 1

606 Z665020000ZZ マルパッキン GASKET 1

DE-18 Z 11-12
CHAPTER

ITEM
3 遠心濾器
3.9.1 DE-18 CENTRIFUGAL OIL FILTER

901

902
1

13
6
8

9
3
5 2

10

12

11

501

DE-18 Z 11-12
 CHAPTER

遠心濾器 ITEM
3
CENTRIFUGAL OIL FILTER DE-18 3.9.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 00515-001 遠心ロキ ＦＭ２００ CENTRIFUGAL OIL FILTER FM200 1

902 00515-025 シールスキット ＦＭ２００ SEALS KIT FM200 1

1 00515-003 カバ－ナット NUT: COVER 1

2 00515-004 スリーブ：ベアリングチユーブＡＳＳＹ SLEEVE: BEARING TUBE ASSY. 1
3 00515-005 スリーブ：スタンドチユーブ SLEEVE: STAND TUBE 1
4 00515-006 Ｏリング：ロキタイ O-RING: BODY 1
5 00515-007 Ｏリング：ローター O-RING: ROTOR 1

6 00515-008 Ｏリング：カバー O-RING: COVER 1

7 00515-009 ロキタイ BODY: FILTER 1
8 00515-010 カバーＡＳＳＹ COVER ASSY. 1
9 00515-011 ロータＡＳＳＹ ROTOR ASSY. 1
10 00515-012 カバーテイケツリング CRAMP RING: COVER 1

11 00515-013 フランジガスケット GASKET: FLANGE 1

12 00515-024 ザガネ：カットオフバルブ WASHER: CUT OFF VALVE 1
13 00515-026 ペーパー：ＦＭ２００ PAPER: INSERT: FM200 1

501 X200012035ZZ ボルト BOLT 4

DE-18 Z 11-12
CHAPTER

ITEM
3 遠心濾器取付
3.9.2 DE-18 CENTRIFUGAL OIL FILTER FITTING

504

17

504

24

504
19

A 502 , 504

500

DE-18 Z 17-03
 CHAPTER

遠心濾器取付 ITEM
3
CENTRIFUGAL OIL FILTER FITTING DE-18 3.9.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

A Ref. 3-3.9.1 遠心ロキ CENTRIFUGAL OIL FILTER 1

17 06486-017 LOカン:バイパスロキ1 L.O. PIPE : BYPASS FILTER-1 1

19 06486-019 LOカン:バイパスロキ2 L.O. PIPE : BYPASS FILTER-2 1
24 Y021310154ZZ ネジコミタマガタベン SCREWED GLOBE VALVE 1

500 X200012030ZZ ボルト BOLT 4

502 X545204000ZZ ツギボルト BANJO PLUG 1
504 Z565002100EE マルパッキン GASKET 5

DE-18 Z 17-03
CHAPTER
3 冷却水配管（１系統、CWポンプ2台付）
ITEM COOLING WATER PIPING (1 WATER LINE,
4.1.1 DE-18 WITH 2 C.W. PUMP)

33 518 34
520

61
Y
519
516 62
507 506 View "Y"

58, 509 110, 503 24 33 67 517 115, 503

33 31 508
26
25
27 7 501
32 518 507 6 517
507
12 4 507
43 112, 114 5
505
505 508
59
16 514 512 11
X 518 521 1
28 13 55
507 3
78 52
10 60
508 68
77
515 520
521 517 2
8 59
519 Z
71, 104 513 9
P 521
15 107
73
View "P"
18 23 22 517 522 30
42 518

509 21
522
3
114, 504
20
41 50
N/P SEAT

69 65 53
71
104
72 56 57
54 19 51
View "X" 79 View "Z"

DE-18 C 16-05
 CHAPTER
冷却水配管（１系統、CWポンプ2台付） 3
COOLING WATER PIPING (1 WATER LINE, ITEM
WITH 2 C.W. PUMP) DE-18 4.1.1
(1)････正転 / NORMAL ROTATION         (2)････逆転 / REVERCE ROTATION

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
1 06469-001 ＣＷカン：ＬＴポンプデグチ１ C.W. PIPING: LT PUMP OUTLET 1 1
2 06469-002 ＣＷカン：ＬＴ　ポンプデグチ２ C.W. PIPING: LT PUMP OUTLET 2 1 1
3 06469-003 ガスケット：ＣＷポンプデグチカン１－２ GASKET: CW PUMP OUTLET 1-2 2 2
4 06469-004 ＣＷカン：ブロックＬＯ／Ｃデグチ C.W. PIPING: BLOCK LO/C OUTLET 1 1
5 06469-005 ブロック：ＣＷバイパスベン BLOCK: CW BYPASS VALVE 1 1

6 06469-006 ＣＷカン：ブロックＣＷデグチ１ C.W. PIPING: BLOCK CW OUTLET 1 1 1

7 06469-007 ＣＷカン：ブロックＣＷデグチ１ C.W. PIPING: BLOCK CW OUTLET 2 1 1
8 06469-008 ＣＷカン：キカンデイリグチ１ C.W. PIPING: ENG IN & OUT 1 1 1
9 06469-009 ＣＷカン：キカンデイリグチ２ C.W. PIPING: ENG IN&OUT 2 1 1
10 06469-010 ブロック：ＧＣバイパス：ＣＷ　ＬＴ BLOCK: GC BYPASS: CW LT 1 1

11 06469-011 ガスケット：ブロック：ギヤケース GASKET: BLOCK: GEAR CASE 1 1

12 06469-012 フランジ：ＲＣ１／２ FLANGE: RC1/2 1 1
13 06469-013 ドレンカン：キュウキ１－１ DRAIN PIPE: INTAKE MANIFOLD 1-1 1 1
15 06469-015 ブラケット：キュウキドレンカン BRACKET: INTAKE DRAIN PIPING: 1 1
16 06469-016 ドレンカン：キュウキ２－１ DRAIN PIPING: INTAKE MANIFOLD 2-1 1 1

18 06469-018 ブロック：キュウキドレン BLOCK: INTAKE DRAIN: 1 1

19 06469-019 ＣＷカン：ＨＴポンプデグチ１ C.W. PIPING: HT PUMP OUTLET 1 1
20 06469-020 ＣＷカン：ＨＴポンプデグチ２ C.W. PIPING: HT PUMP OUTLET 2 1 1
21 06469-021 ＣＷカン：Ｉ／Ｃ　デグチ C.W. PIPING: I/C OUTLET 1 1
22 06469-022 チェックベン：フランジレス CHECK VALVE: FLANGELESS 1 1

23 06469-023 ガスケット：チェックベン GASKET: CHECK VALVE 2 2

24 06469-024 ＣＷカン：ギヤケースデグチ１ C.W. PIPING: GEAR CASE OUTLET 1 1 1
25 06469-025 ガスケット：ＣＷカン：ギヤケースデグチ１ GASKET: CW PIPING: GEAR CASE OUTLET 1 1 1
26 06469-026 ＣＷカン：ギヤケースデグチ２ C.W. PIPING: GEAR CASE OUTLET 2 1 1
27 06469-027 ガスケット：ＣＷカン：ギヤケースデグチ１－２ GASKET: CW PIPING: GEAR CASE OUTLET 1-2 1 1

28 06469-028 ＣＷハイカン：ジャケットドレン CW PIPING: JACKET DRAIN 1 1

30 06469-030 ブロック：ＣＷヘッドデグチ BLOCK: CW CYL HEAD OUTLET 6 6
31 06469-031 ＣＷカン：ヘッドデグチシュカン C.W. PIPING: CYL HEAD OUTLET MAIN 2 2
32 06469-032 フランジ：ＣＷカン FLANGE: CW PIPING 1 1
33 06469-033 ガスケット：ＣＷカンフランジ GASKET: CW PIPING FLANGE 4 4

34 06469-034 ブロック：ＣＷデグチ BLOCK: CW OUTLET 1 1

41 06469-041 ＣＷカン：ジャケットドレン２ C.W. PIPING: JACKET DRAIN 2 1 1
42 06469-042 ブラケット：ＣＷカン：ジャケットドレン BRACKET: CW PIPING: JACKET DRAIN 1 1
43 06469-043 フランジ FLANGE 1 1
50 06469-050 ドレンカン　Ｉ／Ｃ　エアベント１ DRAIN PIPING I/C AIR VENT: 1 1 1

DE-18 B 14-04
CHAPTER
3 冷却水配管（１系統、CWポンプ2台付）
ITEM COOLING WATER PIPING (1 WATER LINE,
4.1.1 DE-18 WITH 2 C.W. PUMP)
(1)････正転 / NORMAL ROTATION         (2)････逆転 / REVERCE ROTATION

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
51 06469-051 ドレンカン　Ｉ／Ｃ　エアベント２ DRAIN PIPING I/C AIR VENT: 2 1 1
52 06469-052 ドレンカン　Ｉ／Ｃ　エアベント３ DRAIN PIPING I/C AIR VENT: 3 1 1
53 06469-053 ドレンカン　Ｉ／Ｃ　ＣＷ：１ DRAIN PIPING I/C C.W.: 1 1 1
54 06469-054 ドレンカン　Ｉ／Ｃ　ＣＷ：２ DRAIN PIPING I/C C.W.: 2 1 1
55 06469-055 ドレンカン　Ｉ／Ｃ　ＣＷ：３ DRAIN PIPING I/C C.W.: 3 1 1

56 06469-056 ドレンコック：Ｉ／Ｃ：１／４ｘ８ DRAIN COCK: I/C: 1/4x8 4 4

57 06469-057 ブロック：ドレン：Ｉ／Ｃ BLOCK: DRAIN: I/C 1 1
58 06469-058 ＣＷカン：ソウゴダンキ C.W. PIPING: F.W.WARMING: 1 1
59 06469-059 ブラケット：ソウゴダンキ BRACKET: F.W.WARMING: 2 2
60 06469-060 ドレンカン：ＬＯプレートクーラ DRAIN PIPING: L.O. PLATE COOLER: 1 1

61 06469-061 ブラケット：ドレンカン：インタークーラー BRACKET: DRAIN PIPING: INTERCOOLER 1 1

62 06469-062 ガスケット：ジャケットドレン GASKET: JACKET DRAIN: 1 1
65 06469-065 ドレンカン：キュウキ　２－３ DRAIN PIPING: INTAKE MANIFOLD 2- 3 1 1
67 06469-067 ＣＷカン：エアヌキ：ギアケースデグチ C.W. PIPING: AIR VENT: GEAR CASE OUTLET 1 1
68 06469-068 ブラケット：ドレンカン：インタークーラー２ BRACKET: DRAIN PIPING: INTERCOOLER 2 1 1

69 06469-069 ドレンカン：キュウキ　２－２ DRAIN PIPING: INTAKE MANIFOLD 2-2 1 1

71 06469-071 ホース：キュウキドレン：１６０ HOSE: INTAKE DRAIN: 160 2 2
72 06469-072 ブラケット：ＣＷカン：ジャケットドレン　２ BRACKET: C.W.PIPING: JACKET DRAIN 2 1 1
73 06469-073 ドレンカン：キュウキ：１－２ DRAIN PIPING: INTAKE MANIFOLD: 1-2 1 1
77 06469-077 ブラケット：ドレンカン：ＬＯプレートクーラ BRACKET: DRAIN PIPING: L.O. PLATE COOLER 1 1

78 06469-078 ＣＷカン：ＬＴポンプデグチ：１　ギャクテン C.W. PIPING: L.T. PUMP OUTLET: 1 REVERSE 1

79 06469-079 ＣＷカン：ＨＴポンプデグチ：１　ギャクテン C.W. PIPING: H.T. PUMP OUTLET: 1 REVERSE 1
104 06489-004 ホースバンド HOSE BAND 4 4
107 06570-007 ブラケット：ドレンカン：Ｔ／Ｃ　センジョウ BRACKET: DRAIN PIPING: T/C CLEANING 1 1
110 B020105010 メイバン：バルブ：ＣＷダンキデイリグチ NAME PLATE: VALVE: CW WARMING INLET&OUTLET 1 1

112 00079-012 アングルベン ANGLE VALVE 1 1

114 B020170014 バルブメイバン（ＣＷ４） LABEL VALVE (CW4) 2 2
115 B020170015 バルブメイバン（ＣＷ５） LABEL VALVE (CW5) 1 1

501 X545202000ZZ ツギボルト BANJO PLUG 4 4

502 X581208092ZZ カンササエＡＳＳＹ PIPE SUPPORTER ASSY. 1 1
503 Y011110154ZZ タマガタベン FLANGED GLOBE VALVE 2 2
504 Y011110204ZZ タマガタベン FLANGED GLOBE VALVE 1 1
505 Z501101800AZ ＪＩＳパッキン JIS GASKET 2 2

DE-18 B 14-04
 CHAPTER
冷却水配管（１系統、CWポンプ2台付） 3
COOLING WATER PIPING (1 WATER LINE, ITEM
WITH 2 C.W. PUMP) DE-18 4.1.1
(1)････正転 / NORMAL ROTATION         (2)････逆転 / REVERCE ROTATION

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
506 Z501207000AZ ＪＩＳパッキン JIS GASKET 1 1
507 Z501208000AZ ＪＩＳパッキン JIS GASKET 8 8
508 Z501302200AZ ＪＩＳパッキン JIS GASKET 5 5
509 Z501302800AZ ＪＩＳパッキン JIS GASKET 2 2
512 Z560208031ZZ Ｏリング O-RING 2 2

513 Z560208531ZZ Ｏリング O-RING 2 2

514 Z560209031ZZ Ｏリング O-RING 1 1
515 Z560209531ZZ Ｏリング O-RING 2 2
516 Z565001000EE マルパッキン GASKET 2 2
517 Z565001300EE マルパッキン GASKET 13 13

518 Z565002100EE マルパッキン GASKET 7 7

519 Z582100037ZZ カンササエ PIPE SUPPORTER 2 2
520 Z582308092ZZ カンササエ PIPE SUPPORTER 4 4
521 Z585112002ZZ カンバンド PIPE SUPPORTER 3 3
522 Z560204031ZZ Ｏリング O-RING 12 12

DE-18 C 16-05
CHAPTER
3 冷却水配管（2系統、CWポンプ、2台&１台付）
ITEM COOLING WATER PIPING (2 WATER LINE,
4.1.2 DE-18 WITH 2 C.W. PUMP & 1 C.W. PUMP)

533,532,74

75
507

516 62 507 506 CASE OF WITHOUT

101 COOLER SIDE PUMP
99 25 7 507
115,201 508 33 95,530,531
31 26 27 24 33 97 518

6 507 517,67

100 5
508,201,110 507

508,58 Z
59
514
512 11
518
507 1
28 507
X 4
518 3
10 515
517
59
2
8 513 107 9
23 22
42 522 30 522
518
509

202,114

41 21
N/P SEAT

20

3
72

View "X" 19 View "Z"

DE-18 A 16-05
 CHAPTER
冷却水配管（2系統、CWポンプ、2台&１台付） 3
COOLING WATER PIPING (2 WATER LINE, ITEM

WITH 2 C.W. PUMP & 1 C.W. PUMP) DE-18 4.1.2

(1)･･ジャケット＆クーラ側ポンプ付,WITH JACKET & COOLER SIDE PUMP (2)･･ジャケット側ポンプ付,WITH JACKET SIDE PUMP

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
1 06469-001 ＣＷカン：ＬＴポンプデグチ１ C.W. PIPING: LT PUMP OUTLET 1 1
2 06469-002 ＣＷカン：ＬＴ　ポンプデグチ２ C.W. PIPING: LT PUMP OUTLET 2 1 1
3 06469-003 ガスケット：ＣＷポンプデグチカン１－２ GASKET: CW PUMP OUTLET 1-2 2 2
4 06469-004 ＣＷカン：ブロックＬＯ／Ｃデグチ C.W. PIPING: BLOCK LO/C OUTLET 1 1
5 06469-005 ブロック：ＣＷバイパスベン BLOCK: CW BYPASS VALVE 1 1

6 06469-006 ＣＷカン：ブロックＣＷデグチ１ C.W. PIPING: BLOCK CW OUTLET 1 1 1

7 06469-007 ＣＷカン：ブロックＣＷデグチ１ C.W. PIPING: BLOCK CW OUTLET 2 1 1
8 06469-008 ＣＷカン：キカンデイリグチ１ C.W. PIPING: ENG IN & OUT 1 1 1
9 06469-009 ＣＷカン：キカンデイリグチ２ C.W. PIPING: ENG IN&OUT 2 1 1
10 06469-010 ブラケット：デンジベン（ＩＨ） BRACKET: SOLENOID VALVE- IH 1 1

11 06469-011 ガスケット：ブロック：ギヤケース GASKET: BLOCK: GEAR CASE 1 1

19 06469-019 ＣＷカン：ＨＴポンプデグチ１ C.W. PIPING: HT PUMP OUTLET 1 1
20 06469-020 ＣＷカン：ＨＴポンプデグチ２ C.W. PIPING: HT PUMP OUTLET 2 1 1
21 06469-021 ＣＷカン：Ｉ／Ｃ　デグチ C.W. PIPING: I/C OUTLET 1 1
22 06469-022 チェックベン：フランジレス CHECK VALVE: FLANGELESS 1 1

23 06469-023 ガスケット：チェックベン GASKET: CHECK VALVE 2 2

24 06469-024 ＣＷカン：ギヤケースデグチ１ C.W. PIPING: GEAR CASE OUTLET 1 1 1
25 06469-025 ガスケット：ＣＷカン：ギヤケースデグチ１ GASKET: CW PIPING: GEAR CASE OUTLET 1 1 1
26 06469-026 ＣＷカン：ギヤケースデグチ２ C.W. PIPING: GEAR CASE OUTLET 2 1 1
27 06469-027 ガスケット：ギヤケースデグチ１－２ GASKET: GEAR CASE OUTLET 1-2 1 1

28 06469-028 ＣＷハイカン：ジャケットドレン CW PIPING: JACKET DRAIN 1 1

30 06469-030 ブロック：ＣＷヘッドデグチ BLOCK: CW CYL HEAD OUTLET 6 6
31 06469-031 ＣＷカン：ヘッドデグチシュカン C.W. PIPING: CYL HEAD OUTLET MAIN 2 2
33 06469-033 ガスケット：ＣＷカンフランジ GASKET: CW PIPING FLANGE 3 3
41 06469-041 ＣＷカン：ジャケットドレン２ C.W. PIPING: JACKET DRAIN 2 1 1

42 06469-042 ブラケット：ＣＷカン：ジャケットドレン BRACKET: CW PIPING: JACKET DRAIN 1 1

58 06469-058 ＣＷカン：ソウゴダンキ C.W. PIPING: F.W.WARMING 1 1
59 06469-059 ブラケット：ソウゴダンキ BRACKET: F.W.WARMING 2 2
62 06469-062 ガスケット：ジャケットドレン GASKET: JACKET DRAIN 1 1
67 06469-067 ＣＷカン：エアヌキ：ギアケースデグチ C.W. PIPING: AIR VENT: GEAR CASE OUTLET1 1

72 06469-072 ブラケット：ＣＷカン：ジャケットドレン　２ BRACKET: C.W.PIPING JACKET DRAIN- 2 1 1

74 06469-074 ＣＷカン：バイパスー１ C.W. PIPING: BYPASS-1 1
75 06469-075 ＣＷカン：バイパスー２ C.W. PIPING: BYPASS-2 1
95 06469-095 ＣＷカン：キカンイリグチ C.W. PIPING: ENGINE INLET 1 1
97 06469-097 ブラケット：ＣＷカンキカンイリグチ BRACKET:ENGINE INLET 1 1

DE-18 Z 14-04
CHAPTER
3 冷却水配管（2系統、CWポンプ、2台&１台付）
ITEM COOLING WATER PIPING (2 WATER LINE,
4.1.2 DE-18 WITH 2 C.W. PUMP & 1 C.W. PUMP)
(1)･･ジャケット＆クーラ側ポンプ付,WITH JACKET & COOLER SIDE PUMP (2)･･ジャケット側ポンプ付,WITH JACKET SIDE PUMP

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
99 06469-099 フランジ：ＣＷデグチシュカン FLANGE :CW MAIN OUTLET PIPE 1 1
100 06469-100 ブラケット：ＣＷカンジャケットデグチ BRACKET:C.W. PIPING JACKET OUTLET 1 1
101 06469-101 ＣＷカン：ジャケットデグチ C.W. PIPING: JACKET OUTLET 1 1
107 06570-007 ブラケット：ドレンカン：Ｔ／Ｃ　センジョウ BRACKET: DRAIN PIPING: T/C CLEANING 1 1
110 B020105010 メイバン：バルブ：ＣＷダンキデイリグチ NAME PLATE: VALVE: INLET&OUTLET 1 1

114 B020170014 バルブメイバン（ＣＷ４） LABEL VALVE (CW4) 1 1

115 B020170015 バルブメイバン（ＣＷ５） LABEL VALVE (CW5) 1 1
201 Y011110154ZZ タマガタベン FLANGED GLOBE VALVE 2 2
202 Y011110204ZZ タマガタベン FLANGED GLOBE VALVE 1 1

506 Z501207000AZ ＪＩＳパッキン JIS GASKET 1 1

507 Z501208000AZ ＪＩＳパッキン JIS GASKET 7 8
508 Z501302200AZ ＪＩＳパッキン JIS GASKET 3 3
509 Z501302800AZ ＪＩＳパッキン JIS GASKET 2 2
512 Z560208031ZZ Ｏリング O-RING 2 2

513 Z560208531ZZ Ｏリング O-RING 2 2

514 Z560209031ZZ Ｏリング O-RING 1 1
515 Z560209531ZZ Ｏリング O-RING 2 2
516 Z565001000EE マルパッキン GASKET 2 2
517 Z565001300EE マルパッキン GASKET 3 3

518 Z565002100EE マルパッキン GASKET 6 6

522 Z560204031ZZ Ｏリング O-RING 12 12
530 Z560105057ZZ Ｏリング O-RING 1 1
531 Z560108057ZZ Ｏリング O-RING 1 1
532 Z560110057ZZ Ｏリング O-RING 1

533 Z560114057ZZ Ｏリング O-RING 1

DE-18 A 16-05
 CHAPTER

メモ ITEM
3
MEMO DE-18
CHAPTER

ITEM
3 吸気ドレン配管
4.1.3 DE-18 INTAKE DRAIN PIPING

43,505 505,12

16 13
X
104,71

521

P 521
15
View "P" 73

18

69

71

104
72

View "X"

DE-18 A 15-12
 CHAPTER

吸気ドレン配管 ITEM
3
INTAKE DRAIN PIPING DE-18 4.1.3

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

12 06469-012 フランジ：ＲＣ１／２ FLANGE: RC1/2 1

13 06469-013 ドレンカン：キュウキ１－１ DRAIN PIPE: INTAKE MANIFOLD 1-1 1
15 06469-015 ブラケット：キュウキドレンカン BRACKET: INTAKE DRAIN PIPING: 1
16 06469-016 ドレンカン：キュウキ２－１ DRAIN PIPING: INTAKE MANIFOLD 2-1 1
18 06469-018 ブロック：キュウキドレン BLOCK: INTAKE DRAIN: 1

43 06469-043 フランジ FLANGE 1

65 06469-065 ドレンカン：キュウキ　２－３ DRAIN PIPING: INTAKE MANIFOLD 2- 3 1
69 06469-069 ドレンカン：キュウキ　２－２ DRAIN PIPING: INTAKE MANIFOLD 2-2 1
71 06469-071 ホース：キュウキドレン：１６０ HOSE: INTAKE DRAIN: 160 2
73 06469-073 ドレンカン：キュウキ：１－２ DRAIN PIPING: INTAKE MANIFOLD: 1-2 1

104 06489-004 ホースバンド HOSE BAND 4

505 Z501101800AZ ＪＩＳパッキン JIS GASKET 2

521 Z585112002ZZ カンバンド PIPE SUPPORTER 3

DE-18 A 15-12
CHAPTER

ITEM
3 冷却水ポンプ＆取付
4.2 DE-18 COOLING WATER PUMP&FITTING

502 902
513

509

502 12
513 14
511
509 2
510 17
18

505 A
506
503
514 504

11
23
13
24
19
22 507
A
503
514
16 512 20 15 501 508 21

515
502
513

901

Section "A-A"

DE-18 Z 11-12
 CHAPTER

冷却水ポンプ＆取付 ITEM
3
COOLING WATER PUMP&FITTING DE-18 4.2
(1) HT C.W.ポンプ / HT C.W. PUMP (2) LT C.W.ポンプ / LT C.W. PUMP

番号 パーツコード 部品名称 Name of Parts 数量Quantity

Number Parts Code (1) (2)
901 05928-002 CWポンプASSY ASSY. C.W. PUMP 1
902 05928-014 CWポンプASSY ASSY. C.W. PUMP 1

2 06552-002 ギヤ GEAR 1 1

11 00016-007 ナット NUT 1 1

12 00016-008 Oリング O-RING 1 1
13 C038800660 ツメツキザガネ CLAW WASHER 1 1
14 00016-010 メカニカルシール MECHANICAL SEAL 1 1
15 05928-005 ケース CASE 1 1

16 05928-006 タイ BODY 1 1
17 05928-007 ジク SHAFT 1 1
18 05928-009 ハネグルマ IMPELLER 1 1
19 05928-011 マウスリング MOUTH RING 2 2
20 05928-012 ディスタンス DISTANCE 1 1

21 05928-013 トメネジ SET SCREW 2 2

22 C038500570 ベアリング BEARING 2 2
23 C038800550 ナット NUT 1 1
24 C038800690 カラー COLOR 1 1

501 X200010025ZZ ボルト BOLT 8 8

502 X570001000JZ ロッカクプラグ HEX. PLUG 2 2
503 X570003000JZ ロッカクプラグ HEX. PLUG 2 2
504 Z319128054ZZ ツメツキザガネ CLAW WASHER 1 1
505 Z400007025DZ キー KEY 1 1

506 Z400010028ZZ キー KEY 1 1

507 Z412007200ZZ スナップリング SNAP RING 1 1
508 Z461456209TC オイルシール OIL SEAL 1 1
509 Z560110057ZZ Oリング O-RING 2 2
510 Z560114057ZZ Oリング O-RING 1 1

511 Z560203520ZZ Oリング O-RING 1 1

512 Z560217557ZZ Oリング O-RING 1 1
513 Z565001000EE マルパッキン GASKET 2 2
514 Z565001700EE マルパッキン GASKET 2 2
515 X220012000ZZ ナット NUT 1 1

DE-18 A 13-01
CHAPTER

ITEM
3 冷却水バイパス弁＆取付
4.3 DE-18 COOLING WATER BYPASS VALVE & FITTING

504
505
7

8
507
510
508
506
502
509
5

6
3

510
4

501 511

9 503

11

901

DE-18 Z 11-12
 CHAPTER

冷却水バイパス弁＆取付 ITEM
3
COOLING WATER BYPASS VALVE & FITTING DE-18 4.3

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06510-001 CWバイパスバルブASSY ASSY. C.W. BYPASS VALVE 1

2 06510-002 ジク SHAFT 1
3 06510-003 ピストン PISTON 1
4 06510-004 フタ COVER 1
5 06510-005 タイ BODY 1
6 06510-006 バネ SPRING 1

7 06510-007 バルブ VALVE 1

8 06510-008 ブッシュ BUSH 1
9 06510-009 チョウセイボルト ADJUSTING BOLT 1

11 06495-006 フクロナット CAP NUT 1

501 X200010035ZZ ボルト BOLT 4

502 X200012030ZZ ボルト BOLT 4
503 X220312000ZZ ナット BOLT 1
504 X227010000DZ Uナット U-NUT 2
505 Z300010000ZZ ヒラザガネ FLAT WASHER 1

506 Z560100919ZZ Oリング O-RING 1

507 Z560101424ZZ Oリング O-RING 1
508 Z560102024ZZ Oリング O-RING 1
509 Z560104935ZZ Oリング O-RING 1
510 Z560107057ZZ Oリング O-RING 2

511 Z665012000ZZ マルパッキン GASKET 2

DE-18 Z 11-12
CHAPTER

ITEM
3 冷却水温調弁
4.4 DE-18 COOLING WATER THERMOSTAT VALVE

901

501

502 503 6 504

DE-18 A 15-08
 CHAPTER

冷却水温調弁 ITEM
3
COOLING WATER THERMOSTAT VALVE DE-18 4.4

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 06556-004 サーモスタットASSY THERMOSTAT ASSY 2

1 06556-001 ケース CASE 1

2 06556-002 フタ COVER 1
6 06556-006 オリフィス ORIFICE 1

501 X200010065ZZ ボルト BOLT 8

502 X220012000ZZ ナット NUT 8
503 Z560105057ZZ Oリング O-RING 1
504 Z560108057ZZ Oリング O-RING 1

DE-18 A 15-08
CHAPTER

ITEM
3 計器板（発電機関）
5.1.1 DE-18 GAUGE BOARD (GENERATOR ENGINE)

511
18
1 16 4
17
2 ⛎䇭䇭᳇
䌂 䌏䌏䌓 䌔 䇭䌁䌉 䌒
Ά䇭ᢱ䇭ᴤ
䌆䌕䌅䌌 䇭 䌏 䌉䌌
࿁䇭ォ䇭⸘
䌔䌁䌃䌈䌏䇭䌍䌅䌔䌅䌒

3
503 㜞᷷಄ළ᳓
䌈䌉䌇䌈䇭䌔䌅䌍䌐䋮䇭䌃䋮䌗䋮
Ả䇭Ṗ䇭ᴤ
䌌䌕䌂䋮䇭䌏䌉䌌
504
506
502
ૐ᷷಄ළ᳓ ㆊ⛎ᯏẢṖᴤ
䌌䌏䌗䇭䌔䌅䌍䌐䋮䇭䌃䋮䌗䋮 䌔䌕䌒䌂䌏䇭䌃䌈䌁䌒䌇䌅䌒䇭䌌䌕䌂䋮䌏䌉䌌

501
505

512

19

510
21
20
22
23 13
512
508
12
15 507
509
14 11

View "P"

DE-18 A 12-11
 CHAPTER

計器板（発電機関） ITEM
3
GAUGE BOARD (GENERATOR ENGINE) DE-18 5.1.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06550-001 ブラケット BRACKET 1

2 06550-002 ブラケット BRACKET 1
3 06550-003 ブラケット BRACKET 2
4 06550-004 カバー COVER 1

11 00040-024 ユニオンネジ UNION SCREW 1

12 00017-008 セッシュ JOINT 5
13 00017-009 セッシュ JOINT 1
14 00017-010 セッシュ JOINT 1
15 00017-011 フクロナット CAP NUT 1

16 00017-018 ケイキバン GAUGE BARD 1

17 E273085020 バネ SPRING 4
18 E273085050 ヒラザガネ FLAT WASHER 2
19 00065-001 ホース HOSE 1
20 00065-003 ホース HOSE 2

21 00065-005 ホース HOSE 1

22 00065-006 ホース HOSE 1
23 00065-004 ホース HOSE 1

501 X200006014ZZ ボルト BOLT 2

502 X200012022ZZ ボルト BOLT 3
503 X200012028ZZ ボルト BOLT 2
504 X208006012ZB プラスボルトASSY PLUS BOLT ASSY 6
505 X220006000ZZ ナット NUT 2

506 X220012000ZZ ナット NUT 2

507 X230303000ZZ トクシュナット SPECIAL NUT 6
508 Y012350085ZZ ニードルバルブ NEEDLE VALVE 3
509 Y012360085ZZ ニードルバルブ NEEDLE VALVE 3
510 Y142030300ZA ダンプナー DAMPNER 1

511 Z212003012ZZ アナツキボルト BOLT 8

512 Z665006000ZZ マルパッキン GASKET 14

DE-18 A 12-11
CHAPTER

ITEM
3 計器板（主機関）
5.1.2 DE-18 GAUGE BOARD (PROPULSION ENGINE)

512
16 18 4
⛎‫ޓޓ‬᳇
BOOST AIR
Ά‫ޓ‬ᢱ‫ޓ‬ᴤ
FUEL OIL
505
1 ࿁‫ޓ‬ォ‫⸘ޓ‬
TACHO METER
17

㜞᷷಄ළ᳓
HIGH TEMP. C.W.
Ả‫ޓ‬Ṗ‫ޓ‬ᴤ
LUB. OIL
3

ૐ᷷಄ළ᳓ ㆊ⛎ᯏẢṖᴤ
LOW TEMP. C.W. TURBO CHARGER LUB. OIL

501, 506

P
2

502
504, 507

503 513

19
511
21
20 22
23
13, 513

509 12

508

15 510
14 11

View "P"

DE-18 Z 12-11
 CHAPTER

計器板（主機関） ITEM
3
GAUGE BOARD (PROPULSION ENGINE) DE-18 5.1.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06550-001 ケイキバンブラケット：シュキ BRACKET: GAUGE BOARD: P 1

2 06550-002 ケイキバンブラケット（ウエ）：シュキ BRACKET: GAUGE BOARD (UPPER): P 1
3 06550-003 ブラケット:ケイキバン BRACKET: GAUGE BOARD 2
4 06550-004 カバー:ケイキバン COVER: GAUGE BOARD 1
11 00040-024 ユニオンネジ UNION SCREW 1

12 00017-008 セッシュ JOINT 5

13 00017-009 セッシュ:コック JOINT: COCK 1
14 00017-010 セッシュ JOINT 1
15 00017-011 フクロナット CAP NUT 1
16 00017-018 ケイキバン GAUGE BARD 1

17 E273085020 バネ SPRING 4
18 E273085050 ヒラザガネ:ケイキバン FLAT WASHER: GAUGE BOARD 2
19 00065-001 ホース HOSE 1
20 00065-003 ホース HOSE 2
21 00065-005 ホース:メタル HOSE 1

22 00065-006 ホース：メタル HOSE: METAL 1

23 00065-004 ホース：メタル HOSE: METAL 1

501 X200006014ZZ ボルト BOLT 2

502 X200012022ZZ ボルト BOLT 2
503 X200012025ZZ ボルト BOLT 2
504 X200012035ZZ ボルト BOLT 5
505 X208006012ZB プラスボルトASSY PLUS BOLT ASSY 6

506 X220006000ZZ ナット NUT 2

507 X220012000ZZ ナット NUT 5
508 X230303000ZZ トクシュナット SPECIAL NUT 6
509 Y012350085ZZ ニードルバルブ NEEDLE VALVE 3
510 Y012360085ZZ ニードルバルブ NEEDLE VALVE 3

511 Y142030300ZA ダンプナー DAMPNER 1

512 Z212003012ZZ アナツキボルト HEX. SOCKET BOLT 8
513 Z665006000ZZ マルパッキン GASKET 14

DE-18 Z 12-11
CHAPTER

ITEM
3 計器板ゲージ
5.2 DE-18 GAUGE

501,502 1

15
⤥䚷䚷Ẽ ⇞䚷ᩱ䚷Ἔ
䠞䠫䠫䠯䠰䚷䠝䠥䠮 䠢䠱䠡䠨䚷䠫䠥䠨
11 503
ᅇ䚷㌿䚷ィ
䠰䠝䠟䠤䠫䚷䠩䠡䠰䠡䠮

㧗 ෭༷Ỉ ₶䚷⁥䚷Ἔ
䠤䠥䠣䠤䚷䠰䠡䠩䠬䠊䚷䠟䠊䠳䠊 䠨䠱䠞䠊䚷䠫䠥䠨
16 14

12
11 ప ෭༷Ỉ
䠨䠫䠳䚷䠰䠡䠩䠬䠊䚷䠟䠊䠳䠊
㐣⤥ᶵ₶⁥Ἔ
䠰䠱䠮䠞䠫䚷䠟䠤䠝䠮䠣䠡䠮䚷䠨䠱䠞䠊䠫䠥䠨 13

DE-18 A 16-04
 CHAPTER

計器板ゲージ ITEM
3
GAUGE DE-18 5.2
過給機 TURBOCHARGER TYPE (1) AT,TPS (2) MET

番号 パーツコード 部品名称 Name  of  Parts 数量Quantity

Number Parts  Code (1) (2)
1 00069-001 カイテンケイ TACHOMETER 1 1
2 00069-002 フレキケーブル FLEX.CABLE 1 1

11 05875-003 60Gゲージ 60G PRESS. GAUGE 2 2

12 05875-008 60Gゲージ 60G PRESS. GAUGE 1
13 05875-018 60Gゲージ 60G PRESS. GAUGE 1
14 05875-020 60Gゲージ 60G PRESS. GAUGE 1 1
15 05875-024 60Gゲージ 60G PRESS. GAUGE 1 1

16 05875-026 60Gゲージ 60G PRESS. GAUGE 1 1

501 X220004000ZZ ナット NUT 4 4

502 X245204014ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 4 4
503 X245204008ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 18 18

DE-18 Z 11-12
CHAPTER

ITEM
3 燃料コントロールシリンダ
6.1.1 DE-18 FUEL CONTROL CYLIDER

3 2
26
23
1
24 4

8
21
9
19 10

11

12

22

13
25
14

15

20
18 16

17

901

DE-18 A 12-03
 CHAPTER

燃料コントロールシリンダ ITEM
3
FUEL CONTROL CYLIDER DE-18 6.1.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 00231-119 燃料コントロールシリンダ ASSY. FUEL OIL CONTROL CYLINDER 1

1 00231-058 プラグ PLUG 2

2 00231-059 スナップリング SNAP RING 4
3 00231-060 メタルロッド１ LOD: METAL 1 3
4 00231-061 エントウバネ SPRING 1
5 00231-062 ピストンロッド　 Ａ ROD; PISTON A 1 ＊

6 00231-063 バネシート SEAT: SPRING 1

7 00231-064 シリンダ　 　 Ｓ１ CYLINDER S1 1
8 00231-065 ピストンパッキン PACKING: PISTON 2
9 00231-066 ピストンＡ PISTON A 1 ＊
10 00231-068 シリンダガスケット GASKET: CYLINDER 2

11 00231-069 ロッドパッキン PACKING: ROD 2

12 00231-120 ピストンロッド Ｂ ROD; PISTON B 1 ＊
13 00231-071 シリンダ　 Ｓ２ CYLINDER S2 1
14 00231-074 ピストンＢ PISTON B 1
15 00231-075 プレートストッパ PLATE: STOPPER 1

16 00231-076 ピストンロッド Ｄ ROD; PISTON D 1 ＊

17 00231-077 ストッパ STOPPER 1
18 00231-078 ナット NUT 1
19 00231-121 アナツキボルトＡ BOLT A 2
20 00231-122 アナツキボルトＢ BOLT B 1

21 00231-117 コネクタ CONECTOR 4

22 00231-118 メタルロッド２ LOD: METAL 2 1
23 00231-079 ブラケット　 Ａ BRACKET A 1
24 00231-080 アナツキボルトＡ BOLT A 2
25 00231-082 ブラケット　 Ｂ BRACKET B 2

26 00231-123 フィルター　 FILTER 2

注記
Remarks
＊印部品の単体販売は不可、各ロッドとピストンASSYでのご注文を承ります。
The parts each of which is marked with a symbol ＊ are not separately sold
but each of them is available as a rod and a piston assembly, so the customer is requested to order
a necessary part as the assembly.

DE-18 A 12-03
CHAPTER

ITEM
3 燃料コントロールシリンダ取付
6.1.2 DE-18 FUEL CONTROL CYLIDER FITTING

504 509
11

12

507

505

503

501

502

506

508

510

DE-18 A 12-03
 CHAPTER

燃料コントロールシリンダ取付 ITEM
3
FUEL CONTROL CYLIDER FITTING DE-18 6.1.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06430-001 ブラケット BRACKET 1

11 00067-002 レバ LEVER 1
12 00067-003 カナグ RETAINER 1

501 X200008014ZZ ボルト BOLT 2

502 X200008025ZZ ボルト BOLT 2
503 X200008040ZZ ボルト BOLT 4
504 X200010032ZZ ボルト BOLT 1
505 X200012020ZZ ボルト BOLT 4

506 X220008000ZZ ナット NUT 2

507 X222312000ZZ コガタナット NUT 1
508 X570002000ZZ ロッカクプラグ HEX. PLUG 2
509 Z415005035ZZ スプリングピン SPRING PIN 1
510 Z565001300EE マルパッキン GASKET 2

DE-18 A 12-03
CHAPTER
3
燃料コントロールシリンダ（変速機関用）
ITEM FUEL CONTROL CYLINDER(VARIABLE
6.1.3 DE-18 SPEED ENGINE )

502

23
513
2

507

508
515

4 24

504

12
8

DE-18 Z 15-09
 CHAPTER
燃料コントロールシリンダ（変速機関用） 3
FUEL CONTROL CYLINDER(VARIABLE ITEM
SPEED ENGINE ) DE-18 6.1.3

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 S105709010AZ ＦＯコントロールシリンダーＡＳＳＹ FUEL OIL CONTROL CYLINDER ASSY 1

2 S105700020ZA シリンダ CYLINDER 1

4 S105700040AZ ピストン PISTON 1
5 S105700050ZA バネウケ SPRING RETAINER 1
7 A374940050ZZ アジャストボルト ADJUST BOLT 1
8 S105000420ZA ナイロンピース NYLONPIESE 1

12 S105700121ZZ ピストンバネ SPRING, PISTON 1

23 S105700230ZZ ミニＹパッキン Y PACKING 1
24 S105700240ZA GL Yパッキン GL Y PACKING 1

502 X220308000ZZ ナット NUT 1

504 X251106008ZZ トメネジ SET SCREW 1
507 Z545108010ZZ ツギワ BANJO 1
508 X545201000ZZ ツギボルト BANJO PLUG 1
513 Z565001000ZZ マルパッキン GASKET 2

515 Z571501000ZZ テーパプラグ TAPER PLUG 1

DE-18 A 17-04
CHAPTER

ITEM
3 レベルスイッチボックス
6.3 DE-18 LEVEL SWITCH BOX

901

503

12
11

13

502 1

501

504

14

DE-18 Z 11-12
 CHAPTER

レベルスイッチボックス ITEM
3
LEVEL SWITCH BOX DE-18 6.3

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06512-004 レベルスイッチASSY ASSY. LEVEL SWITCH 1

1 06512-001 ブラケット BRACKET 1

2 06512-002 カバー COVER 1

11 00232-008 コネクタ CONNECTOR 1

12 00232-009 ガスケット GASKET 1
13 00232-010 ガスケット GASKET 1
14 00440-006 レベルスイッチ LEVEL SWITCH 1

501 X200006014ZZ ボルト BOLT 4

502 X200010020ZZ ボルト BOLT 2
503 X245203010ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 4
504 Z565001000EE マルパッキン GASKET 1

DE-18 Z 11-12
CHAPTER
3 ハンドルスイッチ
ITEM
6.4 DE-18 HANDLE SWITCH

901

DE-18 Z 11-12
 CHAPTER
ハンドルスイッチ 3
ITEM
HANDLE SWITCH DE-18 6.4

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 00029-901 ハンドルスイッチASSY HANDLE SWITCH ASSY. 1

1 00029-001 リミットスイッチ LIMIT SWITCH 1

2 00029-002 ターミナルプレート TARMINAL PLATE 1
3 00029-003 メイバン、ハンドルスイッチ NAMEPLATE, HANDLE SWITCH 1

DE-18 Z 11-12
CHAPTER

ITEM
3 パルスセンサ
6.5 DE-18 PULSE SENSOR

901

DE-18 Z 11-12
 CHAPTER

パルスセンサ ITEM
3
PULSE SENSOR DE-18 6.5

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 00030-019 パルスセンサASSY ASSY. PULSE SENSOR 1

DE-18 Z 11-12
CHAPTER

ITEM
3 ジャンクションボックス&取付
6.6.1 DE-18 JUNCTION BOX & FITTING

32, 33, 35 ,42 32, 34, 35

32, 33, 36 ,38

5, 39, 40

P Q

505 38

23, 24, 31 501

503

11
502

504

37
3, 4
25
View "P" View "Q"

DE-18 B 17-04
 CHAPTER

ジャンクションボックス&取付 ITEM
3
JUNCTION BOX & FITTING DE-18 6.6.1
(1) センサ / SENSOR ; NK(STD) ガバナ / GOVERNOR ; RHD, EAR20
(2) センサ / SENSOR ; NK(STD) ガバナ / GOVERNOR ; UG
(3) センサ / SENSOR ; FULL-SPEC ガバナ / GOVERNOR ; RHD
(4) センサ / SENSOR ; FULL-SPEC ガバナ / GOVERNOR ; UG
番号 パーツコード 部品名称 Name  of  Parts 数量Quantity
Number Parts  Code (1) (2) (3) (4)

901 06474-001 ジャンクションボックスASSY ASSY. JUNCTION BOX 1

902 06474-008 ジャンクションボックスASSY ASSY. JUNCTION BOX 1
903 06474-021 ジャンクションボックスASSY ASSY. JUNCTION BOX 1
904 06474-022 ジャンクションボックスASSY ASSY. JUNCTION BOX 1

3 06474-003 バンキン SHEET METAL 1 1 1 1

4 06474-004 バンキン SHEET METAL 1 1 1 1
5 06474-005 タンシダイ TERMINAL 1 1 1 1
6 06474-006 タンシダイ TERMINAL 1 1 1 1
11 06474-011 ブラケット BRACKET 1 1 1 1

23 06474-023 コネクタ CONNECTOR 30 30 42 42

24 06474-024 ガスケット GASKET 30 30 42 42
25 06474-025 バンキン SHEET METAL 1 1
31 00232-009 ガスケット GASKET 30 30 42 42
32 00232-013 ハウジング HOUSING 3 3 3 3

33 00232-014 インサート INSERT 2 2 2 2

34 00232-015 インサート INSERT 1 1 1 42
35 00232-016 コンタクト CONTACT 9 9 9 9
36 05723-038 コンタクト CONTACT 3 3
37 06475-019 バンキン SHEET METAL 1 1

38 06475-020 グリーンボルト GREEN BOLT 2 2 2 2

39 06474-039 マークバンド MARK BAND 150 150 150 150

40 06474-040 マークバンド MARK BAND 150 150 150 150

42 00232-017 コンタクト CONTACT 7 7

501 X200010022ZZ ボルト BOLT 4 4 4 4

502 X200012020ZZ ボルト BOLT 5 5 5 5
503 X220010000ZZ ナット NUT 4 4 4 4
504 X249004008ZA プラスコネジASSY PLUS MACHINE SCREW ASSY 8 8 8 8
505 X249005010ZA プラスコネジASSY PLUS MACHINE SCREW ASSY 12 12 12 12

DE-18 B 17-04
CHAPTER

ITEM
3 ジャンクションボックス&取付（ＥＡＲ２０）
6.6.2 DE-18 JUNCTION BOX & FITTING (EAR20)

505 18
502

View "P"

901
501, 504 503

17

151 202 151 16 22

119

DE-18 A 17-04
 CHAPTER

ジャンクションボックス&取付（ＥＡＲ２０） ITEM
3
JUNCTION BOX & FITTING (EAR20) DE-18 6.6.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 00534-015 カンビヒン:タンシバコ:M-2 ASSY.: JUNCTION BOX: M-2 1

16 00534-016 ケース:タンシバコ:M-2 CASE: JUNCTION BOX: M-2 1

17 00534-017 フタ:タンシバコ:M-2-1 COVER: JUNCTION BOX: M-2-1 1
18 00534-018 フタ:タンシバコ:M-2-2 COVER: JUNCTION BOX: M-2-2 1
22 00534-022 タンシダイ:DC32JB:M-3 TERMINAL: DC32JB: M-3 1
119 06474-019 ブラケット：ジャンクションボックス BRACKET: JUNCTION BOX 1

151 A001071151 グランド A-15A CABLE GLAND A-15A 3

202 A001071202 グランド A-20B CABLE GLAND A-20B 1

501 X200010025ZZ ボルト BOLT 4

502 X200012085ZZ ボルト BOLT 2
503 X200012095ZZ ボルト BOLT 1
504 X220010000ZZ ナット NUT 4
505 X249005012ZA プラスコネジASSY PLUS MACHINE SCREW ASSY. 8

DE-18 A 17-04
CHAPTER

ITEM
3 温度計配置図
6.7 DE-18 ARRANGEMENT OF THERMOMETER

21 24 22
502 502 502 27
(ST) (ST) (ST) 503
(OP)
T

T T T

T
T P
T

3,4,11,26
T 503,504,505,507
22 (OP)
502 1,2,25
(ST) 503,505,507
(OP)
29
503
(OP)

23
T 501
(ST)
Q
28 30 T
503 503
(OP) (OP)
T

View "P" View "Q"

DE-18 Z 11-12
 CHAPTER

温度計配置図 ITEM
3
ARRANGEMENT OF THERMOMETER DE-18 6.7
(1) 標準仕様 /Standard (2) オプション / Option

番号 パーツコード 部品名称 Name of Parts 数量Quantity

Number Parts Code (1) (2)
1 06564-001 ブラケット BRACKET 1
2 06564-002 メイバン NAME PLATE 1
3 06564-003 ブラケット BRACKET 1
4 06564-004 ブラケット BRACKET 1

11 A506405010 メイバン NAME PLATE 1

21 06606-001 オンドケイ THERMOMETER 6
22 Y231004000ZB オンドケイ THERMOMETER 2
23 Y232403130ZZ オンドケイ THERMOMETER 1
24 Y241004000ZB オンドケイ THERMOMETER 1

25 06606-002 オンドケイ:T/C入口 THERMOMETER 2

26 06606-002 オンドケイ:T/C出口 THERMOMETER 1
27 Y231004000ZB オンドケイ:I/C出口CW温度 THERMOMETER 1
28 Y231004000ZB オンドケイ:クーラー入口潤滑油温度 THERMOMETER 1
29 Y231004000ZB オンドケイ:LOクーラー出口CW温度 THERMOMETER 1

30 Y231004000ZB オンドケイ:HTCWポンプ出口温度 THERMOMETER 1

501 Z565001700EE マルパッキン GASKET 1

502 Z565002100ZZ マルパッキン GASKET 9
503 Z565002100ZZ マルパッキン GASKET 7
504 X200010018ZZ ボルト BOLT 4
505 X200012020ZZ ボルト BOLT 2

506 X200012025ZZ ボルト BOLT 2

507 X245204008ZZ プラスナベコネジ PLUS PAN MACHINE SCREW 9

DE-18 Z 11-12
CHAPTER
3 ターニング安全スイッチ
ITEM
6.8 DE-18 TURNING SAFETY SWITCH

FLYWHEEL COVER

501

DE-18 A 17-04
 CHAPTER
ターニング安全スイッチ 3
ITEM
TURNING SAFETY SWITCH DE-18 6.8

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 00186-001 ノブ KNOB 1
4 00186-004 リミットスイッチ LIMIT SWITCH 1

501 X220012000ZZ ナット NUT 2

DE-18 Z 11-12
CHAPTER

ITEM
3 ポテンショメータ取付
6.9 DE-18 POTENTIOMETER FITTING

506

503,504,508
0
10
２０
5 ３０

502
4

503,504,507

501

505,500,3

DE-18 Z 14-04 A C
 CHAPTER

ポテンショメータ取付 ITEM
3
POTENTIOMETER FITTING DE-18 6.9

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

A 00477-017 ポテンシヨメ-タＡＳＳＹ POTENTIOMETER ASSY. 1

1 07138-001 ブラケット BRACKET 1

3 00612-003 レバ LEVER 1
4 A593800040 リンク LINK 1
5 E335150140 ポテンシヨメ-タレバ-1 POTENTIOMETER LEVER-1 1

500 X200006020ZZ ボルト BOLT 1

501 X200008016ZZ ボルト BOLT 4
502 X200010035ZZ ボルト BOLT 1
503 Z300008000ZZ ヒラザガネ FLAT WASHER 2
504 Z320002020ZZ ワリピン SPRIT PIN 2

505 Z415003020ZZ スプリングピン SPRING PIN 1

506 Z415005040ZZ スプリングピン SPRING PIN 1
507 Z425108020ZZ リンクピン LINK PIN 1
508 Z425108025ZZ リンクピン LINK PIN 1

A C DE-18 Z 14-04
CHAPTER

ITEM
3 過給機洗浄配管(AT)
7.1 DE-18 T/C CLEANING PIPING(AT)

42,502
52
501
54

500,503

6 50

34

70

DE-18 B 16-06
 CHAPTER

過給機洗浄配管(AT) ITEM
3
T/C CLEANING PIPING(AT) DE-18 7.1

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity
4 06570-004 バルブ VALVE 1
6 06570-006 ブラケット BRACKET 1
34 06570-034 ブラケット BRACKET 2
42 06570-042 ツギボルト BANJO PLUG 2
50 06570-050 T/Cセンジョウカン T/C CLEANING PIPE 1

52 06570-052 ブロック BLOCK 1

54 06570-054 ガスケット GASKET 1
70 00949-070 プラグ PLUG 1

500 X570006000DZ ロッカクプラグ HEX. PLUG 1

501 Z565001700CC マルパッキン GASKET 1
502 Z565002100CZ マルパッキン GASKET 2
503 Z565002700CZ マルパッキン GASKET 1

DE-18 B 16-06
CHAPTER

ITEM
3 過給機洗浄配管(MET)
7.2 DE-18 T/C CLEANING PIPING(MET)

507

33
35
32 36

502 503
37 505 505 501
505 34
504

903
4

901

DE-18 A 17-04
 CHAPTER

過給機洗浄配管(MET) ITEM
3
T/C CLEANING PIPING(MET) DE-18 7.2

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 06570-002 ソケットASSY ASSY. SOCKET 1

903 06645-003 T/C センジョウソウチASSY ASSY. T/C CLEANING FITTING 1

4 06570-004 バルブ VALVE 1

32 06570-032 クイコミユニオン BITING UNION 1
33 06570-033 クイコミユニオン BITING UNION 2
34 06570-034 ブラケット BRACKET 3
35 06570-035 T/C センジョウカン T/C CLEANING PIPE 1

36 06570-036 T/C センジョウカン T/C CLEANING PIPE 1

37 06570-037 T/C センジョウカン T/C CLEANING PIPE 1

501 X200010015ZZ ボルト BOLT 2

502 X200010020ZZ ボルト BOLT 1
503 X220010000ZZ ナット NUT 6
504 Z260101500ZZ Uボルト U-BOLT 3
505 Z300010000ZZ ヒラザガネ FLAT WASHER 9

507 Z565002100ZZ マルパッキン GASKET 2

DE-18 A 17-04
CHAPTER

ITEM
3 過給機洗浄ブロアシリンジ
7.3 DE-18 T/C CLEANING BLOWER SYRINGE

1 3 4 501 5

TURBOCHARGER

501

DE-18 Z 11-12
 CHAPTER

過給機洗浄ブロアシリンジ ITEM
3
T/C CLEANING BLOWER SYRINGE DE-18 7.3
(1) AT (2) MET

番号 パーツコード 部品名称 Name of Parts 数量Quantity

Number Parts Code (1) (2)
1 AE01199064A シリンジ SYRINGE 1 1
2 AE01199065A ホースニップル HOSE NIPPLE 1 1
3 AE01199066A ソケット SOCKET 1 1
4 AE01199067A プラグ PLUG 1 1
5 AE01199068A ビニールホース VINYL HOSE 1 1

6 AE01199069A サシコミカナグ JOINT PIECE 1

501 Z584001500ZZ ホースバンド HOSE BAND 2 2

DE-18 Z 11-12
CHAPTER

ITEM
3 過給機洗浄配管(TPS)
7.4 DE-18 T/C CLEANING PIPING(TPS)

55,83,504

43

55,77,504 45

501,502,503

34,500,501,502,503

70
View “P”

DE-18 Z 15-06
 CHAPTER

過給機洗浄配管(TPS) ITEM
3
T/C CLEANING PIPING(TPS) DE-18 7.4

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

4 06570-004 ボールバルブ BALL VALVE 1

34 06570-034 T/C センジョウカンブラケット T/C CLEANING PIPE BRACKET 2
43 06570-043 T/C センジョウカン -1 T/C CLEANING PIPE -1 1
45 06570-045 T/C センジョウカン -2 T/C CLEANING PIPE -2 1
55 A519100350 ディスタンス DISTANCE 2

70 00949-070 プラグ PLUG 1

77 06635-007 カサネツギボルト DOUBLE BANJO PLUG 1
83 E269680300 ツギボルト BANJO PLUG 1

500 X200010015ZZ ボルト BOLT 2

501 X220010000ZZ ナット NUT 6
502 Z260101500ZZ Uボルト U BOLT 3
503 Z300010000ZZ ヒラザガネ FLAT WASHER 8
504 Z665018000CZ マルパッキン GASKET 7

DE-18 Z 15-06
CHAPTER

ITEM
3 過給機洗浄ブロアシリンジ(TPS)
7.5 DE-18 T/C CLEANING BLOWER SYRINGE(TPS)

902 901

㧝 㧟 㧠 502 㧡

502

503

501

TURBOCHARGER

DE-18 Z 15-06
 CHAPTER

過給機洗浄ブロアシリンジ(TPS) ITEM
3
T/C CLEANING BLOWER SYRINGE(TPS) DE-18 7.5

番号 パーツコード 部品名称 Name  of  Parts 数量

Number Parts  Code Quantity

901 00514-094 ブロワシリンジハイカン PIPING ; BLOWER SYRINGE 1

902 00060-117 ブロアシリンジ BLOWER SYRINGE 1

1 0060-064 シリンジ SYRINGE 1

2 0060-065 ホースニップル HOSE NIPPLE 1
3 0060-066 ソケット SOCKET 1
4 0060-067 プラグ PLUG 1
5 00514-092 ビニールホース VINYL HOSE 1

6 00514-093 パイプ PIPE 1

501 Z565001700ZZ マルパッキン GASKET 1

502 Z584001500ZZ ホースバンド HOSE BAND 2
503 Z588610000JJ クイコミユニオン BITING UNION 1

DE-18 Z 15-06
CHAPTER

ITEM
3 油圧ジャッキ（クランクピン＆サイドボルト）
8.1.1 DE-18 OIL PRESS.JACK (CRANKPIN&SIDE BOLT)

11

16
13

501

902

502
15
12 14 503 505

DE-18 Z 11-12
 CHAPTER

油圧ジャッキ（クランクピン＆サイドボルト） ITEM
3
OIL PRESS.JACK (CRANKPIN&SIDE BOLT) DE-18 8.1.1

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

902 00063-014 ユアツジャッキASSY ASSY. HYDRAULIC JACK 1

7 06456-007 スタンド STAND 1

11 00063-007 ハンドル HANDLE 1

12 00063-008 ユアツジャッキ HYDRAULIC JACK 1
13 00063-009 ユアツジャッキ HYDRAULIC JACK 1
14 00063-011 リング RING 1
15 00063-012 リング RING 1

16 00063-006 メスカプラ SOCKET COUPLING 1

501 X250110018ZZ ロッカクトメネジ HEX. SET SCREW 1

502 Z445002000ZZ ボール BALL 1
503 Z560204531ZZ Oリング O-RING 1
505 Z560207531ZZ Oリング O-RING 1

DE-18 Z 11-12
CHAPTER

ITEM
3 油圧ジャッキ（シリンダヘッド）
8.1.2 DE-18 OIL PRESS.JACK (CYLINDER HEAD)

501 16

502

1
17
506

504
6
2

901

18

DE-18 Z 11-12
 CHAPTER

油圧ジャッキ（シリンダヘッド） ITEM
3
OIL PRESS.JACK (CYLINDER HEAD) DE-18 8.1.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06456-008 ユアツジャッキASSY ASSY. HYDRAULIC JACK 1

1 06456-001 ユアツジャッキ HYDRAULIC JACK 1

2 06456-002 ユアツジャッキ HYDRAULIC JACK 1
4 06456-004 スタンド STAND 1
5 06456-005 ユアツジャッキ HYDRAULIC JACK 1
6 06456-006 バックアップリング BACK UP RING 1

16 00063-006 メスカプラ SOCKET COUPLING 1

17 00412-009 バックアップリング BACK UP RING 1
18 00412-010 ハンドル HANDLE 1

501 X250110018ZZ ロッカクトメネジ HEX. SET SCREW 1

502 Z445002000ZZ ボール BALL 1
504 Z560206031ZZ Oリング O-RING 1
506 Z560210031ZZ Oリング O-RING 1

DE-18 Z 11-12
CHAPTER

ITEM
3 油圧ジャッキ（主軸受）
8.1.3 DE-18 OIL PRESS.JACK (MAIN BEARING)

3
18

2
6
1

504
506
17

502
501

16

901

DE-18 Z 11-12
 CHAPTER

油圧ジャッキ（主軸受） ITEM
3
OIL PRESS.JACK (MAIN BEARING) DE-18 8.1.3

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

901 06456-008 ユアツジャッキASSY ASSY. HYDRAULIC JACK 1

1 06456-001 ユアツジャッキ HYDRAULIC JACK 1

2 06456-002 ユアツジャッキ HYDRAULIC JACK 1
3 06456-003 スタンド STAND 1
6 06456-006 バックアップリング BACK UP RING 1

16 00063-006 メスカプラ SOCKET COUPLING 1

17 00412-009 バックアップリング BACK UP RING 1
18 00412-010 ハンドル HANDLE 1

501 X250110018ZZ ロッカクトメネジ HEX. SET SCREW 1

502 Z445002000ZZ ボール BALL 1
504 Z560206031ZZ Oリング O-RING 1
506 Z560210031ZZ Oリング O-RING 1

DE-18 Z 11-12
CHAPTER

ITEM
3 吊り金具
8.2 DE-18 HANGER

16 1 2

‹‹ @ @‹C ”R @ ¿ @ û
‚a‚n‚n‚r‚s @‚`‚h‚q ‚e‚t‚d‚k @‚n‚h‚k
ñ @“] @ v
‚s‚`‚b‚g‚n @‚l‚d‚s‚d‚q

‚ â‹p @ŠŠ @ û
‚g‚h‚f‚g @‚s‚d‚l‚o D @‚b D‚v D ‚k‚t‚a D @‚n‚h‚k

’á â‹p
‚k‚n‚v @‚s‚d‚l‚o D @‚b D‚v D

N/P SEAT

‚m‚m‚O‚O‚T‚U‚V‚O‚P‚Q‚`

6 1

DE-18 Z 12-11
 CHAPTER

吊り金具 ITEM
3
HANGER DE-18 8.2

番号 パーツコード 部品名称 Name of Parts 数量

Number Parts Code Quantity

1 06765-001 ツリカナグ HANGER 2

2 06765-002 ボルト:ツリカナグ BOLT 8
16 06435-016 マルナット CIRCULAR NUT 8

DE-18 Z 12-11