Komatsu Wheel Loader WA380-5H service & repair manual

Description Komatsu Wheel Loader WA380-5H service & repair manual

Komatsu Wheel Loader WA380-5H pdf workshop service repair manual + operation & maintenance manual

Serial number H50051 and up

MANUAL CONTENT:
GENERAL
General assembly drawing
Specifications
Weight table
List of lubricants and coolant

STRUCTURE AND FUNCTION, MAINTENANCE STANDARD
COOLING SYSTEM
ENGINE MOUNT, TRANSMISSION
MOUNT
POWER TRAIN
POWER TRAIN SYSTEM DIAGRAM
DRIVE SHAFT (PROPELLER SHAFT)
TORQUE CONVERTER, TRANSMISSION
PIPING
TORQUE CONVERTER
TRANSMISSION
TRANSMISSION CONTROL VALVE
AXLE
DIFFERENTIAL
FINAL DRIVE
AXLE MOUNTING, CENTER HINGE PIN
STEERING PIPING
STEERING COLUMN, ORBIT-ROLL
STEERING VALVE
ORBIT-ROLL VALVE
STOP VALVE
STEERING PUMP, SWITCH PUMP
EMERGENCY STEERING PUMP (OP)
EMERGENCY STEERING MOTOR (OP)
STEERING CYLINDER
JOYSTICK STEERING LEVER (OP)
STEERING LEVER (OP)
STEERING SWITCH VALVE (OP)
(FOR JOYSTICK STEERING LEVER)
BRAKE PIPING
BRAKE VALVE
CHARGE VALVE
ACCUMULATOR (FOR BRAKE)
BRAKE
PARKING BRAKE CONTROL
PARKING BRAKE
PARKING BRAKE SOLENOID VALVE
PARKING BRAKE EMERGENCY
RELEASE VALVE
HYDRAULIC PIPING
WORK EQUIPMENT CONTROL LEVER
HYDRAULIC TANK
TORQUE CONVERTER CHARGING,
WORK EQUIPMENT, AND PILOT
CONTROL PUMPS
PPC RELIEF VALVE
TRAVEL DAMPER VALVE (OP)
WORK EQUIPMENT CONTROL VALVE
WORK EQUIPMENT PPC VALVE
EPC SOLENOID VALVE (OP)
SHUT OFF VALVE (OP)
ATTACHMENT PPC VALVE (OP)
COOLING FAN MOTOR
COOLING FAN MOTOR DRIVE PUMP
WORK EQUIPMENT LINKAGE
BUCKET
BUCKET POSITIONER, LIFT ARM
KICK-OUT
WORK EQUIPMENT CYLINDER
CAB (OP)
AIR CONDITIONER (OP)
MACHINE MONITORING SYSTEM
MACHINE MONITOR
TRANSMISSION CONTROL SYSTEM
TRANSMISSION CONTROLLER
WORK EQUIPMENT CONTROL SYSTEM (OP)
WORK EQUIPMENT CONTROLLER
ELECTRIC TRANSMISSION CONTROL
KICK DOWN, HOLD SWITCH
ENGINE STARTING CIRCUIT
ENGINE STOP CIRCUIT
PREHEATING CIRCUIT
ENGINE POWER MODE SELECTOR
CIRCUIT
PARKING BRAKE CIRCUIT
SENSORS

TESTING AND ADJUSTING
Standard value table
Standard value table for engine
Standard value table for chassis

TROUBLESHOOTING
Points to remember when troubleshooting
Sequence of events in troublshooting
Precautions when carrying out maintenance
Checks before troubleshooting
Equipment for troubleshooting electrical system
Special functions of machine monitor
Categories, procedure, and method of using troubleshooting charts
Connection table for connector pin numbers
Troubleshooting of transmission control system (TM mode)
Troubleshooting of work equipment control system (WRK mode)
Troubleshooting of monitor panel system (MON mode)
Troubleshooting of hydraulic, mechanical system (H mode)
Troubleshooting of electrical system (E mode)

TROUBLESHOOTING OF TRANSMISSION CONTROL SYSTEM (TM MODE)
TROUBLESHOOTING OF WORK EQUIPMENT CONTROL SYSTEM (WRK MODE)
TROUBLESHOOTING OF MONITOR SYSTEM (MON MODE)
TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)

DISASSEMBLY AND ASSEMBLY
Precautions when carrying out operation
Engine assembly
Cylinder head assembly
Special tool
Radiator and fan motor assembly
Aftercooler assembly
Fuel injection pump
Special tool
Nozzle holder assembly
Fan and fan motor assembly
Fuel tank assembly
Parking brake disc plate
Special tool
Sketch of special tool
Torque converter and transmission assembly
Bleeding air of brake circuit
Transmission assembly
Sketches of special tools
Transmission clutch pack assembly
Special tools
Disassembly of forward and reverse clutch packs
Disassembly of 1st and 4th clutch pack
Disassembly of 2nd and 3rd clutch pack
Assembly of the forward and reverse clutch packs
Assembly of 1st and 4th clutch pack
Assembly of 2nd and 3rd clutch pack
Parking brake assembly
Special tool simplified drawings
F10 Push tool
H1 Bracket
H4 Spacer
H3 Push tool
H6 Push tool
H5 Push Tool
H9 Spacer
H8 Push tool
Torque converter assembly (standard specification)
Torque converter assembly (lock-up specification)
Special tools
Rear axle assembly
Front axle assembly
Axle housing assembly
Special tool simplified drawings
Differential assembly
Special tool illustrations
Center hinge pin
Special tools
Cab assembly
Cab and floor frame assembly
Transmission, work equipment,and PPC pump assembly
Steering, switching, and fan pump assembly
Steering demand valve assembly
Travel dumper valve assembly
Work equipment valve assembly
Hydraulic cylinder assembly (steering, lift, and bucket cylinder assembly)
Hydraulic tank assembly
Work equipment assembly
Air conditioner unit assembly
Air conditioner compressor assembly

OTHERS
Electrical circuit diagram
Brake oil circuit diagram
Power train oil circuit diagram

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