GB

INSTRUCTION MANUAL

Water-cooled
AIR COMPRESSOR
HV1/120

Sperre Industri AS Sperre Rotterdam BV Sperre Asia PTE LTD Sole suppliers of
Tel +47 70 16 11 00 Tel +31 180 463 299 Tel +65 763 63 00 genuine spare parts
Fax +47 70 16 11 10 Fax +31 180 463 264 Fax +65 763 18 11
E-mail:industri@sperre.com E-mail:rotterdam@sperre.com E-mail:asia@sperre.com
 GB
INTRODUCTION

The purpose of this handbook is to describe the design and function of the compressor and to provide basic
instructions for inspection and maintenance of the equipment.

To ensure proper installation, operation and maintenance from the very beginning, it is essential that the operator
should read this handbook with care and attention.

The maintenance intervals and certain technical details given in this handbook are mean values based on
experience. These values may vary depending upon the operating conditions of the individual compressor.

The manufacturer disclaims liability for damage due to unskilled operation or improper maintenance of the
equipment.

Keep the compressor in good mechanical order, and remember that proper preventive maintenance of the
equipment will reduce the risk of damage and unnecessary shutdowns.

The manufacturer reserves the right to amend technical specifications without prior notice.

ELLINGSØY, SEPTEMBER 1986

SPERRE INDUSTRI A/S

CONTENTS

Page
1. ORDERING REPLACEMENT PARTS 2
2. DESCRIPTION OF COMPRESSOR 2
2.1. Design 2
2.2. Safety equipment 3
3. INSTALLATION AND OPERATION 3
3.1. Installation instructions 3
3.2. Cooling water system 3
3.3. Starting up 3
3.4. Operation 4
3.5. Stopping 4
4. FAULT TRACING 5
5. INSPECTION AND MAINTENANCE 6
5.1. Maintenance schedule 6
5.2. Valves 7
5.3. Lubricating oil system 8
5.4. Bearings 8
5.5. Piston and piston rings 9
5.6. Flexible coupling 9
5.7. Coolers 9
5.8. Fitters 9
6. TECHNICAL DATA 10
7. REPLACEMENT PARTS LIST 11
8. ILLUSTRATIONS FOR REPLACEMENT
PARTS LIST 12-16
9. ILLUSTRATIONS 17-21

Water-Cooled Air Compressor Type : HV1/120 Page 1

 1. ORDERING REPLACEMENT PARTS

A list of replacement parts and drawings of the various components will be found at the end of this handbook.

The following information must be given when ordering spares.

A. COMPRESSOR TYPE
B. COMPRESSOR SERIAL NUMBER
C. PART NUMBER AND DESCRIPTION
D. QUANTITY ORDERED
E. RATED WORKING PRESSURE OF COMPRESSOR

The type designation (A) and serial number (B) are shown on the rating plate which is fixed to the crankcase.

The rating plate is shown in Fig. 1.

Pleace note that the manufacturer does not supply oversize or undersize parts, or unmachined parts for further machining
and fitting.

The manufacturer disclames all liability for damage due to the use of non-genuine replacement parts.

ORDER FOR REPLACEMENT PARTS SHOULD BE SENT TO:

SPERRE INDUSTRI A/S

N-6057 ELLINGSØY
NORWAY
PHONE: +47 70 16 11 00
FAX: +47 70 16 11 10
E-mail: industri@sperre.com
Visit http:// www.sperre.com

2. DESCRIPTION OF COMPRESSOR

2.1 Design

The machine coverded by this instruction book is a single cylinder, 2-stage single-acting watercooled air compressor. The
design principle is shown in the cross-sectional drawing Fig. 2.

The first stage of the compressor is the lowpressure stage (LP) and the second is the highpressure stage (HP).
Air circulation through the compressor is shown in Fig. 3. The letters indicate:

A Suction filter
B LP suction valve
C LP delivery valve
D LP safety valve
E LP cooler
F HP suction valve
G HP delivery valve
H HP cooler
I HP safety valve

The compressor is splash-lubricated from the crankcase sump. The crankshaft bearings are two-row ball bearings, the big-
end bearing is a two-shell plain bearing, and the gudgeon pin bearing is an undivided press-fitted plain bearing.

Vertical cooling tubes are rolled into the compressor cylinder block. These serve to cool the air after first-stage compression
and again after second-stage compression. The cooling water intake and outlet are located so that the water circulates
through the cylinder block and ensures efficient cooling of the air and compressor cylinder walls.

The compressor compresses air from atmospheric pressure to rated pressure, with an upper limit of 35 bars.

The compressor is designed for installation together with an electric motor or other drive unit on a well-stiffended base, with
a flexible coupling between compressor and motor.

Every compressor is tested before delivery from the factory, and all compressor sets supplied with motor are aligned before
dispatch. See chapters 3.1. and 5.6.

This compressor is designed to supply compressed air for engine starting, and for the operation of air power equipment and
instruments. It complies with the requirements specified by the classification institutions.

Water-Cooled Air Compressor Type : HV1/120 Page 2

2.2. Safety equipment

The compressor is fitted with two safety valves, one after the first-stage compression and the other after second-stage
compression.

The safety valves, which are set at the factory in accordance with the working pressure specified by the customer, ensure
that the pressure does not exceed the limit for which the compressor and the compressed air system are dimensioned.

The cylinder block cooling jacket is fitted with a safety plate which will be blow out if the cooling water is subjected to
excessive pressure. Use only manufacturer's genuine safety plates to replace blown plates.

3. INSTALLATION AND OPERATION

3.1. Installation instructions

Every compressor unit is supplied complete with drawings and specifications showing its dimensions and attachment points.
The customer also receives installation instructions giving recommendations for the installation of equipment and piping.

The compressor unit should be installed in a location where the air is not excessively warm. Warm intake air reduces the
o
capacity of the compressor. Normally, the ambient temperature for electrical equipment should not exceed 45 C.
The compressor unit bedplate should lie plane to its foundation. After the unit is installed, check the alignment of
compressor and motor. The procedure is shown in Fig.4.

Use vernier callipers or inside micrometer callipers to check the distance (W) (Fig.4). This should be the same around the
whole circumference of the coupling.

Using a micrometer (A), check the radial misalignment between the coupling halves as shown in Fig.4. The maximum
micrometer reading (A) should be as illustrated in Fig. 4.

Even if the unit has been installed on vibration dampers, an alignment check is to be recommended after installation.

Piping should be so installed that there is no risk of water pockets.

Other equipment should not be installed around the compressor unit in such a way that inspection and maintenance
operations may be hampered.

3.2. Cooling water systems

It is of the greatest importance to the operation and life of the compressor that a good and reliable supply of cooling water is
ensured. The quantities of cooling water required are given in Table T.1. These specifications apply to both seawater and
freshwater cooling.

Whether the compressor is connected to a central cooling system or has its own separate cooling water pump, it is
important to ensure that the cooling water is circulating properly. In this connection it is not sufficient simply to check that the
compressor pressure gauge is registering cooling water pressure.

If the cooling water feed temperature is too low, increased internal condensation may result. If this is the case, the cooling
water temperature should be increased. If the temperature cannot be increased by recirculation, condensation can be
reduced by reducing the supply of cooling water.

The cylinder block cooling jacket is equipped with a thermometer for the monitoring of cooling water temperature.

Recommended cooling water temperatures are given in Table T.2.

3.3. Starting up

Before initial starting up and after long periods out of use, carry out he following operations:

A. Check the oil level.

B. Check that the quality of the oil has not been impaired by water or other foreign matter.
C. Check compressor valves and lubricate the cylinder with oil.
D. Turn over the compressor by hand, with the suction valve relieved by means of the manual valve opener.
E. Check cooling water circulation.
F. Check that the air line cock between the compressor and the air reservoir is open.
G. Open the manual drain cocks on the water trap.
H. Start the compressor.
I. If everyhing is operating normally, close the drain cocksand set the valve opener in the operating position.
Allow the compressor to run for a few minutes before loading it to maximum working pressure.

Water-Cooled Air Compressor Type : HV1/120 Page 3

3.4. Operation

During normal operation, pressures and temperatures should be as shown in Table T.2. Some of the values, which are
directly affected by local conditions, may deviate slightly from the figures in the table.

Operation of the compressor is normally monitored by the automatic features of the starting equipment, e.g. thermostat
monitoring of cooling water temperature. However, additional regular checking of operation and automatic functions is
recommended.

Some water form the air will always condence in the system.

The compressor oil and water traps should be regularly drained by hand, unless this function is performed by an automatic
draining system.

3.5. Stopping

Stopping the compressor manually for short periods:

A. Operate the manual valve opener to relieve the LP suction valve.

B. Open the water trap drain cocks.

C. Stop the compressor.

If the compressor is to be shut down for a long period, e.g. when a ship is to be laid up, the procedure is as follows:

AA. Lubricate compressor valves, non return valves, cylinder wallsand exposed crankshaft surfaces with corrosin-inhibiting
oil, suitable for the envisaged period of shutdown.
BB. If there is any risk of frost, drain the cooling water from the compressor.
CC. Drain off old oil, clean the sump and refill with new oil.
DD. Set the manual valve opener in the horizontal position to relieve he load on the suction valve.
EE. Turn over the compressor manually once a month.
FF. The starter cabinet and other electrical equipment should also be protected from damage by corrosion.

Water-Cooled Air Compressor Type : HV1/120 Page 4

 4. FAULT TRACING

The following are some of the faults that may arise in operation.

Inspect coolers and

A. Compressor capacity is low and/or compressor not clean if necessary.
supplying full pressure.
Dirty intake air Check suction filter.
Possible cause Remedy
Inferior lube oil Change the lube oil
Dirty, damaged or Clean and check all type. See list of
worn valves valves. Replace recommended types
defective parts. in this handbook.
Manufactorer can
Sticking piston rings Dismantle rings. Clean supply further
grooves and rings. information.
Replace defecive parts.
When reinstalling, Incorrect tightening of Tighten valve
lubricate cylinderwalls compressor valves clamping screws
with oil. to specified torque.

Leaking safety valves Overhaul safety valves, E. Overheating or knocking in crankcase.

adjust to correct lifting
pressure. Possible cause Remedy

Defective gasket Replace gasket. Defective bearings Inspect bearings,

between crankcase check clearances.
and sylinder block
Insufficent lube oil or Drain sump, clean
Wear between piston Replace piston and lube oil contaminated and add new oil.
and gudgeon pin (severe gudgeon pin. with water
blow-through to crankcase
Binding crankshaft Check bearing
Air filter blocked Clean filter. bearing clearances.
Replace defective
B. LP safety valve blows. parts.

Possible cause Remedy F. Overheating and scoring of piston.

HP valves damaged Check and clean Possible cause Remedy

or dirty valves.
Replace defective Piston or gudgeon pin Replace defective
parts. bearing incorrectly parts, check piston
clearances, piston
C. HP safety valve blows. ring clearances and
gudgeon pin bearing.
Possible cause Remedy
Deficient cooling Check cooling water
Air line shut-off Open shut-off cock. circulation and
cock closed. temperatures.

Non-return valve Remove and clean non- G. Excessive lube oil consumption.
blocked return valve. Replace
defective parts. Possible causes Remedy

D. Valves require maintenance too frequently. Piston rings worn out Replace piston rings.

Possible cause Remedy Defective crankcase Replace breather

breather valve valve.
Overheating Check cooling water
circulation and Blow-through to Check clearance
temperatures. crankcase between piston and
gudgeon pin. Replace
worn parts.

Water-Cooled Air Compressor Type : HV1/120 Page 5

 5. INSPECTION AND MAINTENANCE

IMPORTANT: PERSONAL SAFETY

Before starting any kind of work on the compressor, the electricity supply must be switched off at the starters and
also at the main switchboard. Hang a notice on the switch on the main switchboard to show that repairs are in
progress.

5.1. Maintenance schedule

Change the lube oil after approximately the first 200 hours of running in. Drain off the oil while it is warm, clean the
crankcase before refilling with new oil. When cleaning, it is important not to use rags that may leave threads or fluff in the
crankcase.

The following maintenance schedule is intended as a guideline for normal maintenance. However, compressor operating
conditions vary widely from installation to installation and it is therefore important to adapt the maintenance schedule to the
experience of the individual operator.

Maintenance Maintenance
intervals routine

Daily A
Every 500 hours B
Every 1000 hours C
Every 3000 hours D
Every 9000 hours E
Every 12000 hours F

Routine A Replace: -Lube oil after cleaning

crankcase
Check: -Lube oil
-Coling water circulation Routine D
and temperatures
-Automatic functions Check: -Big-end bearings
-Drain condensate -Piston and cylinder walls
through valve apertures
Routine B -Flexible coupling
-Safety valves
Check: -LP delivery valve
-HP delivery valve Overhaul: -LP suction valve
-Compressor bedplate -HP suction valve
bolts -Air filter (clean)

Routine C Routine E

Check: -LP suction valve Check: -Coolers (clean)

-HP suction valve
-Cylinder through valve Routine F
apertures
-Pipe connections Check: -Main bearings
-Piston, gudgeon pin and
Overhaul: -LP delivery valve rings
-Hp delivery valve -Gudgeon pin bearing

Before ordering replacement parts, please read the instructions for ordering parts.

Water-Cooled Air Compressor Type : HV1/120 Page 6

5.2. Valves

In the parts list and drawings each valve is shown complete, with its own part number, and also dismantled with the part
numbers of the individual components.

After overhaul or replacement of parts, assemble the valves in sequence as shown in the drawing of the dismantled valve.

When assembling valves, lubricate the nut and valve bolt and tighten to the torques (in kpm) given below:

Dimension Minimum Maximum

M4 0.12 0.15
M5 0.24 0.29
M6 0.41 0.50
M8 1.0 1.2

IMPORTANT:
Before attempting to check compressor valves, loosen the clamping screw on the valve cover before removing the cover.

After inspecting and overhauling valves, it is essential that the clamping screw, which bears against the valve clamping
piece and which keeps the valve in place on its seat, should be tightened with an unbrako key to the torque shown in Table
T.3.

Overhaul and mainenance of valves

Regular and careful maintenance of valves is essential to the capacity and reliability of the compressor. We therefore
recommend overhaul in accordance with the following guidelines:

A. When cleaning and dismantling the valve, never clampthe valve directly in a vice to loosen the centre bolt nut.
A special clamping jig for this purpose, suitable for all valves, is available from the factory on request. A simple
makeshift for clamping the valve is to set it in a vice between two pins which fit into the outermost seat slots of the
valve.

B. Clean the valve components and check them carefully. IMPORTANT: Never use sharp implements on sealing surfaces
and plate parts.

C. Replace all parts that are worn or even slightly scored. Check that all guide pins are in order. Maximum wear limit is
10% of the total thickness of components.

D. If a valve spring or spring plate shows signs of weak-ness, all springs must be replaced at the same time, because
damage can result if some springs operate longer than others. Replacement of all valve springs is recommended after
about 5000 hours running time, even if the springs do not look worn.

E. If there are signs of abrasion or scoring of the valve seat sealing ledges, these must be machined. Most valves are
drilled for guide pins, with spare holes for new pins. Guide pins can be driven out by means of a suitable tool. If it
proves impossible to remove a broken pin, use one of the spare holes.

F. To remove the valve centre bolt, mark the centre of the pin with a centre punch and then drill out the pin. Remove the
centre bolt. After refitting the bolt, drill a hole for the safety pin, drive the pin securely into place and peen the end to
prevent it from falling out.

G. After completion of machining and careful replacement of guide pins in their respective holes in the valve seating
and/or catch plate, check that the ends of the pins do not but against the bottom of the holes in the matching parts.

Use only genuine replacement pins and parts.

Assembly of valves demands precision, care and forethought. Make sure that the various parts are correctly located and
that the right numbers are installed. Compare with the lists and drawings of parts to ensure that the right number of parts is
present. Total lifting heights of valve plates are given in Table T.4.

Water-Cooled Air Compressor Type : HV1/120 Page 7

5.3. Lubricating oil system

IMPORTANT:
Accumulation of condencate in the crankcase may present a serious problem under certain operating conditions, and it is
important that the operator should check from the very beginning whether condensate in the lubricating oil is liable to
become a problem.

Unless the condensed water emulsifies with the lubricating oil, it will separate out and there is a risk that the compressor will
be lubricated with water.

The choise of lube oil is of great importance to the reliable operation of the compressor. The manufactorers have performed
extensive tests of lube oils for the oil companies, and the following is a list of lubricants recommended on the basis of these
tests.

A list of recommended types of oil is affixed to the compressor on delivery.

MOBIL RARUS 427

MOBIL RARUS 827
BP ENERSYN RX 100
BP ENERGOL RC 68
CALTEX RPM COMPR. OIL 68
CASTROL AIRCOL SN 100
CASTROL AIRCOL PD 100
CHEVRON HD COMPR. OIL 100
BARELF AL 100
ESSO/EXXON ZERICE S 100
ESSO/EXXON SYNNESTIC 68
ESSO/EXXON EXXCOLUB 77
FINA EOLAN AC
MITSUBISHI COMPR. OIL 100
NIPPON OIL CO. FAIRCOL SA 100
NYNÄS COMPR. OIL 68
PHILLIPS COMPR. OIL 68
SHELL CORENA P 68
SHELL CORENA AP 68
STATOIL COMPWAY S 100
TEXACO CETUS DE 100
DAPHNE MARINE COMPRESSOR 100
GENERAL COMPOL A 100

Further information about lubricants is available on application to the manufacturer.

5.4. Bearings

The compressor has replaceable, two-shell plain big-end bearings. The crankshaft bearings are two-row ball bearings.

The gudgeon pin bearings is a single shell plain bearing, press-fitted into the little end. Tolerances and clearances for
connecting rod, crankshaft and gudgeon pin bearings are given in Table T.4.

After inspection or replacement of the big-end bearing it is important to ensure that the bearing does not bind on the
crankshaft. It must be possible to turn over the compressor manually.

New two-shell bearings are coated with a running-in compound at the factory.

Dismantling the gudgeon pin bearing from the connecting rod.

A. Use a hydraulic press or extractor to remove the old bearing shell.

B. Press in the new bearing shell.
C. Adjust the fit of the bearing to the gudgeon pin in accordance with Table T.4.

Water-Cooled Air Compressor Type : HV1/120 Page 8

5.5. Piston and piston rings

Dismantle the piston as follows:

A. Remove the cylinder head without dismantling the valves.

B. Loosen big-end bearing bolts and remove lower bearing shell.
C. Lift piston and connecting rod out of cylinder.

Assembly sequence is the opposite of the above.

When replacing the piston in the cylinder, the piston rings are accessible through the HP valve ports and can be eased in
place in the HP cylinder.

If the gudgeon pin has been removed, it is important to ensure when reassembling that the locking screw is installed inside
the piston so that it fits into the drilled locking recess of the gudgeon pin.

5.6. Flexible coupling

The compressor flywheel serves as one coupling half.

Dismantle the coupling

A. Loosen the nuts on each coupling half and give each one a sharp tap with a hammer before removing them
completely. This will cause the bolts to loosen from their conical holes in the coupling halves.
B. Remove the bolts and take out the flexible coupling. Avoid spilling oil on the flexible coupling.

The coupling half on the motor is keyed and shrunk on to the axle.

Alignment

The prinsiple and values for checking alignment are shown in Fig. 4.

A. Micrometer/dial indicator
B. Magnetic base
C. Flywheel
D. Coupling half, motor
E. Flexible coupling

Check the angle (W) by means of inside micrometer callipers or vernier callipers. The distance (W) in mm should be the
same around the whole circumference of the coupling halves

Check parallel misalignment (A) between coupling halves as shown, around the circumference of the coupling halves (C).
Values in mm for maximum parallel misalignment are given in Fig.4.

5.7. Coolers

To ensure reliable operation of the compressor it is important to keep the LP and HP coolers free from deposis of carbon
and cooling water salts etc. Insufficient cooling causes excessive air temperature and progressively increases the formation
of carbon deposits.

The cooling tubes are rolled (or expanded) into the cylinder block at both ends.

If the cooling tubes show signs of severe corrosions or wear, the old tubes can be drilled out and new tubes rolled (or
expanded) in.

5.8. Filter

The air filter should be cleaned by means of a good degreasing agent. Blow the filter clean with compressed air and give it a
thin coating of compressor oil.

Water-Cooled Air Compressor Type : HV1/120 Page 9

 7. TECHNICAL DATA

T.1. Coolant flows Component A B C

--------------------------------------------------------------------------
Shaft speed rpm.: 725 - 875 - 975 - 1150 Cylinder block to
Crankcase M18 27 20
Coolant flow : 5 - 6 - 7 - 8 Cleaning door M8 13 4
l/min. 7-10 bars Crankcase covers M10 17 4

Coolant flow : 7 - 8 - 9 - 10 T.4. Clearances

l/min. 15-35 bars.
Suction valve LP
T.2. Recommended pressures and temperatures Lifting height (mm) 1.6
----------------------------------------------------------------
Recommended minimum inlet Delivery valve LP
o
temperature : 30 C Lifting height (mm) 1.6
Cooling water -----------------------------------------------------------------
Suction valve HP
Recommended maximum outlet Lifting height (mm) 2.0
o
temperature : 60 C -----------------------------------------------------------------
Cooling water Delivery valve HP
Lifting height (mm) 2.0
Recommended temperature -----------------------------------------------------------------
o
difference : 15-20 C Cylinder/piston
clearance LP (mm) 0.18
Recommended cooling water -----------------------------------------------------------------
pressure : 0.5-3.0 bars Cylinder /piston
clearanse HP (mm) 0.18
Normal working pressure -----------------------------------------------------------------
first stage 0-10 bars : 1.5-3.5 bars Piston/cylinder head
clearance LP (mm) 1.4-1.8
Normal working pressure -----------------------------------------------------------------
second stage 10-35 bars : 4.0-6.0 bars Crankshaft bearing
play (mm) 0.03-0.07
Maximum working pressure : 35 bars -----------------------------------------------------------------
Gudgeon pin bearing
Safety valve setting over play (mm) 0.01-0.03
stage pressure : 10% -----------------------------------------------------------------

Normal temperature T.5. Piston rings

o
outlet air : 40-70 C
Pressure stage :
T.3. Torque table LP HP
-----------------------------------------------------------------
A Thread diameter (mm) Illustration : Fig.5. Fig.5.
B Key width Number of compression rings : 4 4
C Torque (kpm), clean and lubricated threads Number of oil scraper rings : 1
* Marker for unbrako screw Min. end clearance S (mm) : 0.4 0.4
** Marker for BSP threads Max. end clearance S (mm) : 0.6 0.6
Wear limit S (mm) : 1.0 1.0
Component A B C
-------------------------------------------------------------------------- T.6. General data
Cylinder head M18 27 20
Connector block HP M12 19 8 Number of cylinders : 1
Valve cover LP M12 19 8 Cylinder diameter LP (mm) : 120
Valve clamping Cylinder diameter HP (mm) : 105
screw HP and LP *M16 8 10 Stroke (mm) : 85
Cap lock nut Crankpin diameter (mm) : 50
HP and LP M16 27 10 Crankshaft diameter at (mm) : 55
Big end bearing
bearing bolts **1/8 17 4 Gudgeon pin diameter (mm) : 32
End cover, crankcase M10 17 6 Number of valves LP : 2
Number of valves HP : 2
Oil capacity of sump (litres) : 2

Water-Cooled Air Compressor Type : HV1/120 Page 10

Part Description Quantity Part Description Quantity
No. No.

1006 Crankcase 1 3580 Valve spring, HP safety valve 1

1026 Crankcase handhole cover 1 3581 Valve spring, LP safety valve 1
1028 Crankcase cover, dipstick side 1 3613 Pressure gauge tube 1
1044 Bearing housing 2 3674 Key 1
1072 Flywheel 1 3684 Locknut, main bearings 2
1094 Cylinder block 1 3690 Flywheel nut 1
1157 Bearing shell cup, pair 2 3695 Cap nut, clamping screw 3
1217 Fixture bracket, LP 1 3700 Breaher valve 1
1219 Fixture bracket, HP 1 3711 Air filter 1
1227 Frame, bursting plate 1 3734 Clamping screw 2
1251 Cylinder head 1 3735 Clamping screw 1
1303 Valve cover, LP suction side 1 3744 Splash plate 1
1304 Valve cover, LP delivery side 1 3745 Dipstick 1
1344 Nipple, air outlet 1 3748 Cover plate 1
1378 Coupling flange, driver 1 3762 Cooling water pipe 1
1398 Crankshaft 1 3771 Pressure gauge, LP 1
1409 Connecting rod 1 3773 Pressure gauge, HP 1
1454 Clamping piece, HP valve 2 3819 Gudgeon pin bearing 1
1459 Clamping piece, LP valve 2 3830 Big-end bearing shell, pair 2
1493 Clamping plate, suction valve 1 3859 Sealing ring 1
1494 Clamping plate, delivery valve 1 3875 Ball bearing 2
3003 Suction valve, HP complete 1 3902 Copper washer, HP valve 2
3004 Delivery valve, HP complete 1 3903 Copper washer, LP valve 2
3007 Suction valve, LP complete 1 3925 Copper washer 2
3008 Delivery valve, LP complete 1 3927 Copper washer 6
3053 Valve seat, LP suction 1 3928 Copper washer 3
3054 Valve seat, LP delivery 1 3929 Copper washer 3
3057 Valve seat, HP suction 1 3930 Copper washer 10
3058 Valve catcher, LP delivery 2 3937 Lock washer 5
3095 Gripper spring, LP suction 1 3959 Bursting plate 1
3102 Valve plate, HP valve 2 3999 Gasket, bursting plate 1
3104 Valve plate, LP valve 2 4005 Gasket, crankcase cover 2
3131 Valve washer, LP valve 2 4006 Gasket, bearing housing 2
3132 Valve washer, HP suction 1 4008 Gasket, air outlet flange 1
3140 Fixing pin 2 4012 Gasket, LP valve cover 2
3153 Valve catcher, HP suction 1 4082 Gasket, cylinder cover 1
3154 Valve catcher, HP delivery 1 4083 Gasket, crankcase/cylinder 1
3157 Valve catcher, LP suction 1 4084 Gasket, cooling water pump 1
3180 Valve spacer ring 2 4128 Gasket, fixture bracket 2
3201 Valve bolt, LP valve 1 4188 Stud 8
3202 Valve bolt, HP valve 2 4189 Stud 16
3204 Valve bolt, LP suction 1 4193 Stud 10
3227 Valve split pin 1 4197 Stud 4
3230 Gripper locking ring 1 4211 Stud 4
3235 Valve nut 1 4213 Stud 4
3236 Valve nut 2 4236 Nut 8
3241 Valve nut 1 4237 Nut 16
3245 Valve unloader, complete 1 4238 Nut 14
3253 Valve spring, HP suction 2 4241 Nut 8
3254 Valve spring, HP delivery 2 4251 Locknut 1
3257 Valve spring, LP suction 4 4271 Nipple 2
3287 Gripper, LP suction valve 1 4274 Nipple 4
3302 Unloader cover 1 4283 Gauge nipple 2
3308 Clamping screw, LP suction 1 4294 Plug 2
3316 Unloader piston 1 4296 Plug 1
3325 Big-end bearing bolt 2 4297 Plug 4
3334 Big-end bearing nut 2 4402 Unbrako screw 1
3339 Big-end bearing split pin 2 4422 Safety valve, HP 1
3343 Filter elbow 1 4424 Safety valve, LP 1
3345 Plain nipple 1 4435 Screw 2
3346 Splash pin 1 4436 Screw 4
3372 Piston 1 4443 Cooling water pump 1
3445 Connector, pump 1 4446 Set screw 1
3449 Cooler tube 13 4447 Set screw 1
3463 Gudgeon pin 1 4485 Coupling bolt and nut 6
3490 Oil scraper ring 1 4489 Unbrako screw 1
3508 Compression ring 4 4521 Coupling plate 1
3509 Compression ring 4
3576 Safety valve ball 1

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FIG. 1

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