Komatsu Bulldozer D155AX-5 SN 70001-76000 Factory Workshop Service Repair Manual

Komatsu Bulldozer D155AX-5 SN 70001-76000 Factory Workshop Service Repair Manual

Loaded with Hi Resolution illustrations, instructions, photos, and diagrams, complete to service and repair your Komatsu. 

Pages:1100+

Models Covered :

D155AX-5 SN 70001-76000

Manual Covers :

GENERAL:

SPECIFICATION DRAWING

SPECIFICATIONS

WEIGHT TABLE

TABLE OF FUEL,COOLANT AND LUBRICANTS

STRUCTURE AND FUNCTION:

ENGINE CONTROL

RADIATOR,OIL COOLER

POWER TRAIN

POWER TRAIN SYSTEM

OVERALL DRAWING OF POWER TRAIN UNIT

POWER TRAIN HYDRAULIC SYSTEM DRAWING

POWER TRAIN HYDRAULIC PIPING DIAGRAM

POWER TRAIN HYDRAULIC CIRCUIT DIAGRAM

DAMPER,UNIVERSAL JOINT

TORQUE CONVERTER,PTO

TRANSMISSION CONTROL

TRANSMISSION

TRANSMISSION CONTROL VAVLE

MAIN RELIEF VALVE

LUBRICATION RELIEF VALVE

SCAVENGING PUMP STRAINER

POWER TRAIN PUMP STRAINERE

POWER TRAIN OIL FILTER

HSS SYSTEM

ACTUATION OF HSS SYSTEM

HSS PUMP

HSS MOTOR

PPC,HSS CHARGE FILTER

PPC,HSS CHARGE VALVE

HSS OIL COOLER BYPASS VALVE

STEERING,BRAKE CONTROL

BEVEL GEAR SHAFT,HSS,BRAKE

BRAKE VALVE

FINAL DRIVE

TRACK FRAME

RECOIL SPRING

TRACK ROLLER BOGIE

MAIN FRAME

SUSPENSION

WORK EQUIPMENT HYDRAULIC PIPING DIAGRAM

PPC CONTROL PIPING DIAGRAM

WORK EQUIPMENT CONTROL

WORK EQUIPMENT HYDRAULIC SYSTEM AND HSS SYSTEM DIAGRAM

WORK EQUIPMENT HYDRAULIC CIRCUIT AND HSS CIRCUIT DIAGRAM

HYDRAULIC TANK AND FILTER

ACCUMULATOR

PPC LOCK VALVE

PPC VALVE

PISTON VALVE

PIN PULLER SWITCH

PIN PULLER SOLENOID VALVE

TILT/PITCH SELECTOR SWITCH

PITCH SOLENOID VALVE

MAIN CONTROL VALVE

CYLINDER STAY

WORK EQUIPMENT

CAB

AIR CONDITIONER

ELECTRIC WIRING DIAGRAM

ELECTRIC CIRCUIT DIAGRAM

MONITOR SYSTEM

SENSORS

ENGINE STARTING SYSTEM

HSS ELECTRONIC CONTROL SYSTEM

TESTING AND ADJUSTING:

STANDARD VALUE TABLE FOR ENGINE

STANDARD VALUE TABLE FOR CHASSIS

STANDARD VALUE TABLE FOR ELECTRICAL PARTS

TESTING AND ADJUSTING

TROUBLESHOOTING

DISASSEMBLY AND ASSEMBLY:

METHOD OF USING MANUAL

PRECAUTIONS WHEN CARRYING OUT OPERATION

SPECIAL TOOL LIST

SPECIAL TOOL SKETCH

STARTING MOTOR

ALTERNATOR

ENGINE OIL COOLER CORE

FUEL INJECTION PUMP

WATER PUMP

TURBOCHARGER

NOZZLE HOLDER

FUEL INJECTOR

ENGINE FRONT SEAL

ENGINE REAR SEAL

CYLINDER HEAD

THERMOSTAT

AIR CONDITIONER COMPRESSOR

AIR CONDITIONER CONDESER

FUEL TANK

RADIATOR

RADIATOR,OIL COOLER,GUARD

FAN DRIVE

HYDRAULIC COOLER

ENGINE

DAMPER

POWER TRAIN UNIT

PTO

TORQUE CONVERTER

TORQFLOW TRANSMISSION

HSS CASE

HYDRAULIC PUMP

HSS PUMP

HSS MOTOR

POWER TRAIN MAIN RELIEF VALVE

HSS,PPC CHARGE VALVE

HSS,PPC CHARGING VALVE

TRANSMISSION CONTROL VALVE

BRAKE VALVE

FINAL DRIVE

TRACK FRAME

IDLER

RECOIL SPRING

TRACK ROLLER

BOGLE

CARRIER ROLLER

TRACK SHOE

PRESS-FITTING JIG DIMENSION TABLE FOR LINK PRESS

ONE LINK

MASTER LINK

PIVOT SHAFT

EQUALIZER BAR

EQUALIZER BAR SIDE BUSHING

SEGMENT TEETH

HYDRAULIC TANK

MAIN CONTROL VALVE

HSS OIL COOLER BYPASS VALVE

DISASSEMBLY, ASSEMBLY OF HMT OIL COOLER BYPASS VALVE

BLADE PPC VALVE

RIPPER PPC VALVE

BLADE PPC VALVE

BLADE LIFT CYLINDER

BLADE TILT CYLINDER

RIPPER LIFT CYLINDER

RIPPER TILT CYLINDER

HYDRAULIC CYLINDER

BLADE

MULTI-SHANK RIPPER

ROPS GUARD

OPERATOR CAB

HOOD

FLOOR FRAME

DASHBOARD

MONITOR

HSS CONTROLLER

MAINTENANCE STANDARD:

ENGINE MOUNT

POWER TRAIN UNIT MOUNT

DAMPER, UNIVERSAL JOINT

TORQUE CONVERTER,PTO

TRANSMISSION

TRANSMISSION CONTROL VALVE

MAIN RELIEF VALVE

BEVEL GEAR SHAFT,HSS BRAKE

BRAKE VALVE

SCAVENGING PUMP, PPC, HSS CHARGE PUMP

POWER TRAIN PUMP, LUBRICATION PUMP

PPC,HSS CHARGE VALVE

OIL COOLER BYPASS VALVE

FINAL DRIVE

SPROCKET

MAIN FRAME

TRACK FRAME

RECOIL SPRING

TRACK ROLLER BOGIE

IDLER

TRACK ROLLER

CARRIER ROLLER

TRACK SHOE

SUSPENSION

WORK EQUIPMENT PUMP

HSS PUMP

HSS MOTOR

PPC VALVE

STEERING LEVER

MAIN CONTROL VALVE

WORK EQUIPMENT CYLINDER

QUICK DROP VALVE

CYLINDER STAY

WORK EQUIPMENT

OTHERS:

WORK EQUIPMENT HYDRAULIC CIRCUIT AND HSS CIRCUIT DIAGRAM

MACHINE EQUIPPED WITH PITCH DOZER

ELECTRIC CIRCUIT DIAGRAM (1/3) (SERIAL NO.70001-75000)

ELECTRIC CIRCUIT DIAGRAM (2/3) (SERIAL NO.70001-75000)

ELECTRIC CIRCUIT DIAGRAM (3/3) (SERIAL NO.70001-75000)

ELECTRIC CIRCUIT DIAGRAM (1/3) (SERIAL NO.75001 AND UP)

ELECTRIC CIRCUIT DIAGRAM (2/3) (SERIAL NO.75001 AND UP)

ELECTRIC CIRCUIT DIAGRAM (3/3) (SERIAL NO.75001 AND UP)

ELECTRIC CIRCUIT DIAGRAM INSIDE CAB (SERIAL NO.75001 AND UP)

EXTRAS:

Operation and Maintenance Manual SN 75001-76000

Operation and Maintenance Manual SN 70001-75000

This manual is the same as the manual used by workshops. Service Manual contains detailed instructions and step by step diagrams for all workshop procedures.

Language: English 
Format: PDF

COMPATIBLE WITH ALL WINDOWS & MAC COMPUTERS 
(WINDOWS 11, WINDOWS 10, WINDOWS 8 ETC.)

Windows/Mac/Tablet/Phone Friendly

• Engine: The D155AX-5 is powered by a Komatsu SA6D140E-2 turbocharged and after-cooled diesel engine.
• Horsepower: The engine produces a gross power of 314 horsepower (234 kW) at 1,900 rpm.
• Max torque: Max torque is 1,156.5 lb-ft at 1,250 rpm.
• Displacement: The engine has a displacement of 930.1 cubic inches (15.2 liters).
• Operating weight: The operating weight is approximately 86,000 lbs (39,010 kg) with a standard blade and full fuel tank.
• Transmission: The dozer features a Hydrostatic Steering System (HSS) transmission with three forward and three reverse gears. 

• Blade capacity: The standard blade has a capacity of 11.6 cubic yards.
• Dimensions with blade: The overall length with a standard blade is approximately 20.67 feet.
• Hydraulic system: A gear-type pump provides a flow capacity of 67.4 gallons per minute.
• Optional ripper: A ripper could be added as an optional attachment. 

• Comfort: The cab was designed for operator comfort with features to reduce noise and vibration.
• Technology: An in-cab color monitor displayed machine data and diagnostics, and an exclusive Komatsu remote monitoring system was also available.
• Undercarriage: The undercarriage was built for durability and superior traction.