915&917 PRODUCT INTRODUCTION

Caterpillar: Confidential
 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

Caterpillar: Confidential Yellow

Caterpillar: Confidential
Caterpillar: Confidential
Caterpillar: Confidential
 COMPETITION MODELS

HP<160 160≤HP<180 180≤HP<200 220≤HP<240

915 917 919 921/922AWD

GR135/150 GR165 GR180 GR220/215A

G9138 G9165 G9190 G9220

PT130 PT160

CLG414/4140 CLG4165 CLG4180 CLG4220

SAG120 STG170C-8 STG190C-8 STG210

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 SEM MG KEY VALUES

 High Performance: Load sensing variable piston pump and specially

designed PPPC valves provide superior implement control and better
machine performance.

 High Reliability: Specially designed SEM tandem axle, flanged large box
section front frame, A shape drawbar frame with box section, are designed to
handle heavy duty applications providing excellent reliability and durability.

 Easy Operation: Specially designed operating levers matching specially

designed hydraulic system give operators outstanding "feel" .

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 915&917 WALK AROUND
Engine & Cooling CAB Drawbar, Circle, Moldboard
• T2 - SDEC 7H Mechanical • Added A/C vents • 915 blade: 10’, 12’
• 915: 150 HP, 917: 170 HP • Non ROPS Cab, same height as competitors’ • 917 blade: 12’, 13’
• Same engine platform as 918 for • High Profile ROPS Cab – OPT (STD for EAEU) • Slip Clutch is OPT but
China Market Appearance recommended (919: OPT)
• Cooling: 43C for STD, 50C is available • New style appearance *Option available on 919: 12’, 13’, 14’

Transmission Wheels & Tires

• Same rim within the same model
• Manufacturer: Hangzhou
• 915
Gearbox (HangChi)
o 13.0-24, 12PR tube tire, MP, STD
• Brand: Advance, same as 919
o 13.0-24, 12PR tubeless tire, SP, OPT
• Model: 6YD130 (different model vs 919)
o 14.0-24, 12PR tubeless tire, SP, OPT
• 6F/3R EH Shift, same as 919
• 917
*Same Manufacturer and Total Number of
o 14.0-24, 12PR tubeless tire, SP, STD
Gears as 919 but different transmission
o 17.5-25 12PR tube/tubeless tire, MP, OPT
model)
(919: STD)
o 13.0-24,12PR tube tire, MP,
Rear Axle/Tandem Hydraulic System OPT (915: STD)
• Manufacturer: Caterpillar • Load Sensing hydraulic system
• Brand: SEM • Variable displacement piston pump Work Tool
• Model: ST18, smaller size than ST23 • PPPC control valve – made by Caterpillar • Rear Ripper - OPT
with same concept and layout (919: • Manual/hydraulic blade tip (919: STD Hydraulic Tip) • Mid-Mounted Scarifier (MMS) – OPT
ST23) • Hydraulic Pin puller – STD (919: STD) • 2.5m front blade - OPT
• Dual circuit Air-actuated Service • Float function – OPT (919: STD)
Brake, with bigger main air tank

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 OVERALL SPECIFICATIONS
ITEM 915 T2 917 T2 919 T2
Standard 12,200 13,500 15,070
Operating Weight With Ripper + FCW 13,380 13,780 17,080
-NON ROPS (kg) With Front Blade 13,330 14,130 16,270
With Ripper + Front Blade 14,010 14,410 17,280
Standard 12,520 13,820 15,370
Operating Weight With Ripper + FCW 13,700 14,100 17,380
-HP ROPS (kg) With Front Blade 13,650 14,450 16,570
With Ripper + Front Blade 14,330 14,730 17,580
Standard 8,516*2,410*3,125 8,974*2,491*3,150 8,703*2,630*3,360
Shipping Dimensions With Front & Rear CW 8,974*2,410*3,125 8,974*2,491*3,150 8,855*2,630*3,360
L*W*H (mm) With Ripper+FCW 9,942*2,410*3,125 9,942*2,491*3,150 10,325*2,630*3,360
(Non ROPS Cab) With Front Blade 9,566*2,494*3,125 9,755*2,494*3,150 9,680*2,748*3,360
With Ripper + Front Blade 10,723*2,494*3,125 10,723*2,494*3,130 11,100*2,748*3,360
Top Speed, Forward /kph 40 40 40
Top Speed, Reverse /kph 29 29 25
Min. Turning Radius /mm 7,300 7,300 7,800
Aticulation Angle, left/right 20° 20° 20°
Operating Specifications Gradeability 30° 30° 30°
Wheelbase /mm 5,830 5,830 6,140
Travel Speed, Forward /kph 5.2/8.1/13/19.8/29/40 5.3/8.2/13.3/20.3/29/40 5.3/9.1/12/20/25/40
Travel Speed, Reverse /kph 5.2/13/29 5.3/13.3/29 5.3/12/25
Drawbar Pull /kN （0.8） 71 78 85

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 OVERALL SPECIFICATIONS - CONT.
ITEM 915 T2 917 T2 919 T2
Fuel Tank /L 218 218 320
Engine Oil /L 17.5 17.5 22
Coolant /L 37 37 65
Transmission /L 17 17 28
Service Refill Capacity Differential Case/L 27 27 33
Tandem Case, each side /L 50 50 62
Circle Drive, Non Slip Clutch /L 2 2 2
Circle Drive, With Slip Clutch /L 7 7 7
Hydraulic Oil Tank /L 55 55 55

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 SHIPPING DIMENSIONS
915 NON ROPS 915 ROPS

917 NON ROPS 917 ROPS

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 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

Caterpillar: Confidential Yellow

 ENGINE
SDEC 7H Series Engine:
 Manufacturer: Shanghai Diesel Engine Co., Ltd. (SDEC for short)
 Popular platform on MG, used on 918(China market, same hp as 919)
 Turbocharger. Displacement: 6.5 L
New Feature:
 4 air valves on each cylinder: better fuel efficiency

ITEM 915 T2 917 T2 919 T2

Manufacturer SDEC(ShangHai Diesel) SDEC(ShangHai Diesel) SDEC(ShangHai Diesel)
Model SC7H150G2B SC7H170.1G2B SC8D190.1G2
Rated Power /kW @ RPM 110 @ 2,200 125 @ 2,200 140 @ 2,200
Max. Torque / kN @ RPM 570 @ 1,400 750 @ 1,400 720 @ 1,400~1,600
Emission Tier 2 Tier 2 Tier 2
Engine
Displacement /L 6.5 6.5 8.82
Bore /mm 105 105 114
Stroke /mm 124 124 144
Number of Cylinders 6 6 6
Air Valve on Each Cylinder 4 4 2

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 ENGINE
Cold Start:
 Normal Start: -15 ℃, 2 X 850CCA maintenance free
battery. STD Configs.
 Cold Start: -25 ℃, 2 X 1400CCA Heavy duty maintenance
free battery + Preheat. OPT on 917.
 Artic Start: -40 ℃, 2 X 1400CCA Heavy duty maintenance
free battery + Preheat + Coolant heater. Rework from after
market because of few take rate.

Hydraulic Drive Fan:

 STD for 43 ℃ environment temperature
 Can be adjusted to be for 50 ℃ environment temperature

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 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

Caterpillar: Confidential Yellow

 TRANSMISSION
Advance 6YD13 Transmission:
 Manufacturer: Hangzhou Advance Gearbox Group Co.,
Ltd (HangChi for short in Chinese)
 Popular Model on MG

 Converter, EH controlled Powershift

 6 Forward/ 3 Reverse
 Parking Brake: Spring Actuated, Air Released

ITEM 915 T2 917 T2 919 T2

Brand/Manufacturer Advance/HangChi Advance/HangChi Advance/HangChi
Model 6YD13 6YD13 6WG180
Type Converter, Powershift Converter, Powershift Converter, Powershift
Transmission
Powershift Pressure /MPa 1.3~1.7 1.3~1.7 1.3~1.7
Forward/Reverse Gears 6 Forward/ 3 Reverse 6 Forward/ 3 Reverse 6 Forward/ 3 Reverse
Spring Actuated, Air Spring Actuated, Air Spring Actuated, Air
Parking Brake
Released Released Released

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 TRANSMISSION
915/917 919/921/922

Differences between 919/921/922 and 915/917:

 Transmission oil check is changed from dipstick to visible check

 Easier oil level check
 Easier maintenance
 Complete protection
 In future, the structure will be same.

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 PARKING BRAKE
SEM Competitors

 Better Safety

 Spring Actuated, Air Released

engagement  Lever-Cable control
 Higher operating effort, especially releasement.
 Low operating effort
 In case of air circuit failed, the spring will  In case of cable worn out, the vehicle will lose

actuate the parking brake automatically. the parking brake.

 Air circuit has been improved for shorter air

release time by 50%.
Caterpillar: Confidential Yellow
 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

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 SEM TANDEM AXLE
ST23 ST18
SEM Tandem Axle ST18:
 Manufacturer: Caterpillar (CQL)
 Same concept and layout as ST23 on 919 / 921
/ 922, just smaller size.
 Excellent reliability and serviceability, low
operation cost.

ITEM 915 T2 917 T2 919 T2

Brand/Manufacturer SEM/Caterpillar SEM/Caterpillar SEM/Caterpillar
Model ST18 ST18 ST23
Differential No-Spin No-Spin No-Spin
Rear Axle/Tandem Service Brake Air to oil, Caliper-Disc Air to oil, Caliper-Disc Air to oil, Caliper-Disc
Secondary Dual Circuit Dual Circuit Dual Circuit
Oscillation Front Up 15° 15° 15°
Oscillation Front Down 25° 25° 25°

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 SEM TANDEM AXLE
 Excellent Reliability

 Optimal layout and oil bathed shafts and bearings.

 Outboard Caliper-Disc service brake

 Four planetary gears in each final drive

 NO-SPIN differential

 Enhanced heavy duty driving chains

 Serviceability & Low Operation Cost

 Greasing Free

 Adjustment Free of the driving chains

 Outboard Caliper-Disc service brake. Easy access

and maintenance items are common to 3T Wheel
Loader
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 SEM TANDEM AXLE
SEM Tandem Axle Competitors’
Concentric layout, oil Off-center layout,
bath lubrication grease lubrication

4 planetary gears 3 planetary gears

 Better Performance
 Better Reliability World-class No-SPIN diff Normal No-Spin diff

 Better Serviceability
 Lower Operation Cost

Outboard, caliper-disc brakes Inside, shoe brake

One-piece forged shaft with Straight shaft, grease

flange, oil bathed lubrication lubrication
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 SEM TANDEM AXLE - ACCESS

Easy Access to Engine Compartment

 Sturdy metallic anti-slip, step by step access
 Safety handrails keep 3-point safe contact
 Lockable engine compartment doors

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 SEM TANDEM AXLE - BRAKE LINES LAYOUT
915/917 919/921/922 Old

 Air tank for air dryer is removed because of a new air dryer with
back-flusher (919 / 921 / 922 have been changed as well)
 Air dryer is moved into engine compartment (919 / 921 / 922
will be changed)
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 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

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 FRONT AXLE
Front Axle:
 Dual steering cylinders
 Parallelogram mechanism wheel lean

 Better greasing access

 Copper alloy bushings
 Grease Point changed for better
access when front equipment installed

ITEM 915 T2 917 T2 919 T2

Ground Clearance /mm 615 640 602
Wheel Lean, left/right ±18° ±18° ±18°
Front Axle
Max. Oscillation ±16° ±16° ±16°

Steering Range, left/right ±45° ±45° ±47.5°

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 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

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 HYDRAULIC SYSTEM
Load Sensing Hydraulic System:
 LS Variable Piston Pump + Proportional Priority
Pressure Compensating (PPPC) Valves
 Hydraulic flow is proportioned to ensure all
implements operate simultaneously.
 Continuously matching hydraulic flow and pressure to power
demands creates less heat and reduces power consumption.

ITEM 915 T2 917 T2 919 T2

Load Sensing, Closed Load Sensing, Closed Center, Load Sensing, Closed
Circuit Type
Center, PPPC PPPC Center, PPPC
Pump Type Variable Piston Variable Piston Variable Piston
Hydraulic System Max. Pump Output / L/min 162.8 162.8 162.8
Max. System Pressure
22 22 22
/MPa
Standby Pressure /MPa 2.0~2.2 2.0~2.2 2.4~2.6
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 HYDRAULIC SYSTEM – LS PUMP

Load Sensing Variable Displacement Piston Pump

Fixed Displacement Gear Pump:
:
 Pump Capacity: 2 X 25cc
 Pump Capacity: 74cc
 Max. Flow: 74cc X 2200rpm=162.8 L/min  Max. Flow: 50cc X 2200rpm=110 L/min
 Min. Flow: 50cc X 800rpm=40 L/min
 Min. Flow: ~ 0 L/min
 Closed Center: if no implement operated, no  Gear Pump: Once the engine started, hydraulic flow is

hydraulic flow created, no engine power loss. created, the more RPM the more flow even though no

 Better Machine Performance implement operated.

 Load Sensing
 Better Productivity
 All implements operate simultaneously  Implements act one by one, the one taking min. load acts firstly.
 Implement speed only depends on lever control  Implement speed depends on engine RPM
 Hydraulic flow created per the system demands  Hydraulic flow created per the engine RPM
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 HYDRAULIC SYSTEM - PPPC VALVES
LS, PPPC Gear Pump

Diff.=~150mm/s Diff.=~60mm/s ■ Extending

■ Extending
Diff.<5mm/s ■ Retracting
■ Retracting

Diff.<5mm/s Diff.<5mm/s

• Single function Diff.= ~25mm/s

• Data based on certain
test condition

Low Idle High Idle Low Idle High Idle

Engine RPM Engine RPM
PPPC Valves
Gear Pump + Normal Spool Valves
 Specially designed for MG by Caterpillar, integrated design.
 Hydraulic component manufacturer, no integration.
 Compensate for differences in flow requirements, based on
 Hydraulic speeds vary from engine RPM, cylinder size
cylinder size and different surface volume between the rod
and cylinder extending/retracting.
end and barrel end of the cylinder, resulting predictable,
 The levers have to be set to longer for low
consistent hydraulic speeds whether extending or retracting
effort causing incontinence of operation.
the cylinder.
 Provide outstanding operator “feel” and predictable system
 response for unmatched implement control.  Better Machine Performance
Caterpillar: Confidential Yellow  Better Operator Performance
 Better Productivity
 HYDRAULIC SYSTEM - PPPC VALVES
SEM Competitors

28

 Better Productivity

Caterpillar Classic Control Levers:

 Compacted layout
 Smaller stroke
 Low operating effort
 Easy multi-function operation
 Benefit from the PPPC valves
 Easier Operation
 Better Operator Performance
Caterpillar: Confidential Yellow
Competitors’
Control Levers:
 Large levers
gap
 Longer stroke
 Heavy
operating
effort
 No multi-
function
operation
 HYDRAULIC SYSTEM - PPPC VALVES

1. Lock valves are built into all control valves to help maintain exact blade settings.
2. Line relief valves are also incorporated into selected control valves to protect
the cylinders from over pressurization.
3. Float function is optional to provide blade float which is very useful for
snow removal and certain applications.

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 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

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 STRUCTURES
Operator Platform built into
Structures: Designed for Heavy Duty front frame, better visibility to
DCM and front axle
 High rigidity design provides and maintains
precise blade positioning under all
applications.
 High strength design provides better reliability
and durability

Weld stress
 Front Frame:
 Continuous top and bottom plate provides consistency and strength
 Flanged box section design removes welds from high stress areas,
Structural stress
providing better reliability and durability.

 Rear Frame
 The rear frame structure has two box section channels for a
solid working platform.
 An integrated bar ties the rear frame together into a cohesive unit
to handle heavy duties.
Caterpillar: Confidential Yellow
 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

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 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
DCM: Designed for Reliability and Durability
 A-shape drawbar frame with box section provides high rigidity and
strength, meaning better precision and reliability & durability
 Adjustable and replaceable drawbar ball-joint provides longer service life
with lower replacement cost.
 Hardened circle teeth resist wear providing longer service life
 Cooper alloy blade sideshift bushings resist wear providing longer service life
 Optional circle drive with slip clutch protects DCM in case of
immoveable objects
ITEM 915 T2 917 T2 919 T2
Blade Width, STD /mm 3,059 (10’) 3,669 (12’) 3,974 (13’)
Blade Width, OPT /mm 3,669 (12’) 3,972 (13’) 3,669 (12’)/4,279 (14’)
Moldboard Height /mm 580 (10’ Blade)/610 (12’ Blade) 610 610
Moldboard Thickness /mm 20 20 25
Throat Clearance /mm 112 112 85
Moldboard Float Function OPT OPT STD
Max. Blade Position Angle 90° 90° 90°
Blade Tip, Forward 40° 40° 40°
Blade Tip, Backward 5° 5° 5°
Max. Lift above Ground /mm 435 460 475
Max. Cutting Depth /mm 750 725 715

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 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
915/917 919/921/922

Without Slip Clutch

- Lower height

With Slip Clutch

- Higher height

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 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
SEM Competitors

 Bolted ball-joint  Welded ball-joint

 Adjustable shimming  No shimming
 Longer service life providing exact blade positioning  Lose precision in a short service time
 Easier replacement with lower cost  Very hard replacement with higher cost
 Better Machine Performance
 Better Durability
 Easier Rebuilding
 Lower Rebuilding Cost
Caterpillar: Confidential Yellow
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
SEM Competitors

Slewing the blade with load is

prohibited

Without Slip Clutch

Delivered Torques - Circle Drive • Data based on certain

test condition
~ 57kN.m

~ 25kN.m

SEM VS Competitors

 Better Machine Performance

 Better Reliability
Caterpillar: Confidential Yellow
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
SEM Competitors

 Large Throttle Clearance allows material freely flow  Less Throttle Clearance stops the material
along the blade curve reducing driving resistance. flowing causing more resistance.
915 T2 917 T2 919 T2
Throat Clearance /mm 112 112 85

 Better Productivity
Caterpillar: Confidential Yellow
 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

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 CENTER-SHIFT LINKBAR
7-Hole Linkbar increases (DCM) moldboard positioning and reach
 Helps keep the mainframe running on a level clean surface
 Allows extremely steep moldboard angles
 Helps visibility to the toe and heel
Center Hole
 Long straight blading
 Finishing
 Light to medium windrows
First and Second Hole From Center
 Cleaning shallow ditches.
 Moving large windrows.
 With articulation to build flat bottom ditches.
Third Hole From Center
 Cutting ditch back slopes
 Cutting high bank slopes.
 Cleaning deep ditches.
 Grading and dressing fill slopes.
 Use with articulation to grade on steep slopes.

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 CENTER-SHIFT LINKBAR
SEM Competitors

 Robust structures, designed for heavy duty  Weak structures, designed for light duty
 7 positions match the applications better  5 or 6 positions doesn’t match the applications

 Better Reliability well

 Better Durability
Caterpillar: Confidential Yellow
 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

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 CAB OFFERINGS

 NON ROPS Cab, normal height  ROPS Cab, high profile

 Cloth seat without headrest  Cloth seat with headrest. Premium
 Cloth seat with headrest. accessories
Premium
accessories.
Caterpillar: Confidential Yellow
 CAB
SEM Competitors

High Profile ROPS Normal Profile NOP ROPS Normal Profile

200mm Higher Same Height

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 NON ROPS CAB
 Added vents for
defrosting

 Added vents
surrounding
operator

 New unlock lever

Caterpillar: Confidential Yellow
 ROPS CAB
 Added vents for
defrosting  New unlock lever
on ROPS Cab

 Added vents
surrounding
operator
Caterpillar: Confidential Yellow
 ARTICULATION INDICATOR

Simple Indicator for Articulation

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 CONTENTS
 OVERALL INFORMATION
 ENGINE
 TRANSMISSION
 TANDEM AXLE
 FRONT AXLE
 HYDRAULIC SYSTEM
 STRUCTURES
 DRAWBAR, CIRCLE, MOLDBOARD(DCM)
 CENTER-SHIFT LINKBAR
 CAB
 OPTIONAL WORKTOOLS

Caterpillar: Confidential Yellow

 OPTIONAL WORKTOOLS

 Front Blade (2.5m width)  Mid Mounted Scarifier(MMS)  Rear Ripper, 3 teeth / 5 teeth
 Front Blade Ready  MMS Ready  Ripper Ready
Caterpillar: Confidential Yellow
 KEY TAKEAWAY
 High Performance: Load sensing variable piston pump and specially
designed PPPC valves provide superior implement control and better
machine performance.

 High Reliability: Specially designed SEM tandem axle, flanged large box
section front frame, A shape drawbar frame with box section, are designed to
handle heavy duty applications providing excellent reliability and durability.

 Easy Operation: Specially designed operating levers matching

specially designed hydraulic system give operators outstanding "feel" .

Caterpillar: Confidential Yellow

 QUESTION?

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Caterpillar: Confidential