Komatsu Bulldozer D155A-5 service & repair manual

Description Komatsu Bulldozer D155A-5 service & repair manual

Komatsu Bulldozer D155A-5 pdf workshop service manual + operation & maintenance manual

Serial numbers:
65001 and up

Technical data, specifications, maintenance, troubleshooting, electrical wiring diagrams, hydraulic schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
SAFETY
SAFETY NOTICE

FOREWORD
GENERAL
HOW TO READ THE SHOP MANUAL
HOISTING INSTRUCTIONS
METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER
COATING MATERIALS
STANDARD TIGHTENING TORQUE
ELECTRIC WIRE CODE
CONVERSION TABLE
UNITS

General
Specification drawing
Specifications
Weight table
Table of fuel, coolant and lubricants

Structure and function
Radiator
Oil cooler
Engine control
Power train
Power train system
Power train unit mount
Overall drawing of power train unit
Power train hydraulic piping diagram
Power train hydraulic system drawing
Damper, universal joint
Torque converter, PTO
Transmission control
Transmission
Transmission control valve
Main relief valve
Lubrication relief valve
Steering, brake control
Bevel gear shaft, steering clutch, steering brake
Steering control valve
Reducing valve
Scavenging pump strainer
Power train pump strainer
Power train oil filter
Final drive
Radiator guard
Main frame, underguard
Track frame
Recoil spring
Track roller bogie
Suspension
Work equipment hydraulic piping diagram
PPC control piping diagram
Work equipment control
Work equipment hydraulic system diagram
Hydraulic tank and filter
PPC charge valve
Accumulator
PPC lock valve
PPC valve
Main control valve
Operation of main control valve
Operation of work equipment control circuit
Piston valve
Quick drop valve
Cylinder stay
Work equipment
Pin puller switch
Pin puller solenoid valve
Tilt/pitch selector switch
Pitch solenoid valve
Cab mount
Cab
Air conditioner
Electrical wiring diagram
Machine monitor system
Sensors
Engine starting system

Testing and adjusting
Standard value tables
Standard value table for engine related parts
Standard value table for chassis related parts
Standard value table for machine monitor
Tools for testing, adjusting, and troubleshooting
Measuring engine speed
Measuring exhaust color
Adjusting valve clearance
Measuring compression pressure
Measuring blow-by
Measuring engine oil pressure
Testing and adjusting fuel injection timing
Testing and adjusting alternator belt tension
Measuring exhaust temperature
Measuring air supply pressure (boost pressure)
Measuring torque converter stall speed
Measuring torque converter stall + hydraulic pump relief (full stall) speed
Adjusting fuel control linkage
Adjusting decelerator pedal
Adjusting joystick (steering, directional, gear shift lever), parking lever linkage
Adjusting brake pedal linkage
Adjusting work equipment control linkage
Testing and adjusting work equipment control circuit pressure
Measuring PPC valve output pressure
Adjusting PPC valve
Measuring on-off solenoid valve output pressure
Measuring power train oil pressure
Testing and adjusting work equipment main relief pressure
Bleeding air from hydraulic cylinders
Releasing remaining pressure in hydraulic circuit
Checking location of cause of hydraulic drift of blade and ripper
Measuring leakage inside cylinder
Adjusting semi-U-tiltdozer
Adjusting clearance of idler
Simple procedure for testing brake performance

Troubleshooting
Points to remember when troubleshooting
Sequence of events in troubleshooting
Points to remember when carrying out maintenance
Checks before troubleshooting
Type of connector and position of installation
Connector arrangement diagram
Connection table for connector pin numbers
Method of using troubleshooting charts
Troubleshooting of electrical system (E mode)
Troubleshooting of hydraulic and mechanical systems (H mode)
Troubleshooting of machine monitor system (M mode)

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
ENGINE FRONT SEAL
ENGINE REAR SEAL
CYLINDER HEAD
THERMOSTAT
AIR CONDITIONER COMPRESSOR
AIR CONDITIONER CONDENSER
FUEL TANK
RADIATOR
RADIATOR, OIL COOLER, GUARD
FAN DRIVE
HYDRAULIC COOLER
ENGINE
DAMPER
POWER TRAIN UNIT
PTO
TORQUE CONVERTER
TORQFLOW TRANSMISSION
STEERING CASE
POWER TRAIN, LUBRICATION PUMP
SCAVENGING PUMP
POWER TRAIN MAIN RELIEF VALVE
TRANSMISSION CONTROL VALVE
REDUCING VALVE
STEERINGCONTROL VALVE
FINAL DRIVE
TRACK FRAME
IDLER
RECOIL SPRING
TRACK ROLLER
BOGIE
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
HYDRAULIC, PPC PUMP
MAIN CONTROL VALVE
PPC CHARGE 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

Maintenance standard
Engine mount
Power train unit mount
Damper, universal joint
Torque converter, PTO
Transmission
Transmission control valve
Main relief valve
Bevel gear shaft, steering clutch, steering brake
Steering control valve
Scavenging pump
Power train pump, lubrication pump
Final drive
Main frame
Track frame
Recoil spring
Track roller bogie
Idler
Track roller
Carrier roller
Recoil spring
Track shoe (Dry type track)
Track shoe (Sealed and Lubricated Track)
Suspension
Hydraulic, PPC charge pump
PPC charge valve
PPC valve
Main control valve
Work equipment cylinder
Quick drop valve
Cylinder stay
Work equipment

Others
Hydraulic circuit diagram
Power train hydraulic circuit diagram
Work equipment hydraulic circuit diagram
Electrical circuit diagram
Cab electrical circuit diagram

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