Komatsu Wheel Loader WA420-1LC service & repair manual

Description Komatsu Wheel Loader WA420-1LC service & repair manual

Komatsu Wheel Loader WA420-1LC pdf workshop service manual + operation & maintenance manual

Serial numbers A25001 and up

Specifications, technical data, troubleshooting, electrical wiring diagrams, hydraulic schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
ENGINE
TESTING AND ADJUSTING
STANDARD VALUE TABLE
TOOL LIST FOR TESTING AND ADJUSTING
VALVE CLEARANCE
FUEL INJECTION TIMING
ENGINE OIL PRESSURE AND TEMPERATURE
BLOW-BY PRESSURE
EXHAUST GAS COLOR
ACCELERATOR PEDAL, OPERATING FORCE AND OPERATING ANGLE

DISASSEMBLY AND ASSEMBLY
STARTING MOTOR
ALTERNATOR
FUEL INJECTION PUMP
WATER PUMP
INJECTORS
CYLINDER HEAD
TURBOCHARGER
COMPRESSOR
AFTERCOOLER
RADIATOR
OIL COOLER
ENGINE
FUEL TANK

POWER TRAIN
STRUCTURE AND FUNCTION
TESTING AND ADJUSTING
STANDARD VALUE TABLE
TOOL LIST
ENGINE SPEED
OIL PRESSURE OF TORQUE CONVERTER AND TRANSMISSION
SHIFT LEVER
METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL
TIRE AND WHEEL
TROUBLESHOOTING

DISASSEMBLY AND ASSEMBLY
TORQUE CONVERTER CHARGING PUMP
TORQUE CONVERTER, TRANSMISSION, TRANSFER
TORQUE CONVERTER
TRANSMISSION
TRANSFER ASSEMBLY
TRANSMISSION CONTROL VALVE
FRONT DIFFERENTIAL
REAR DIFFERENTIAL
DIFFERENTIAL
FRONT AXLE
REAR AXLE
DRIVE SHAFT
FINAL DRIVE

MAINTENANCE STANDARD
TRANSMISSION AND ENGINE MOUNT
TORQUE CONVERTER CHARGING PUMP
TORQUE CONVERTER
TORQFLOW TRANSMISSION
TRANSFER
DIFFERENTIAL
FINAL DRIVE
DRIVE SHAFT
AXLE MOUNT

STEERING SYSTEM
STRUCTURE AND FUNCTION
HYDRAULIC PIPING
HYDRAULIC CIRCUIT DIAGRAMS
STEERING CONTROL SYSTEM
STEERING CYLINDER
STEERING COLUMN AND ORBIT-ROLL
CENTER HINGE PIN
GROUND DRIVEN STEERING PUMP (OPTIONAL)
DIVERTER VALVE (OPTIONAL)

TESTING AND ADJUSTING
STANDARD VALUE TABLE
TOOL LIST
STEERING WHEEL PLAY
OPERATING FORCE OF STEERING WHEEL
OPERATING TIME OF STEERING WHEEL
STEERING CONTROL
STEERING OIL PRESSURE
GROUND DRIVEN STEERING PUMP
TROUBLESHOOTING

DISASSEMBLY AND ASSEMBLY
STEERING VALVE
STEERING DEMAND VALVE
CENTER HINGE PIN
STEERING CYLINDER

MAINTENANCE STANDARD
STEERING COLUMN AND ORBIT-ROLL
STEERING VALVE
STEERING CYLINDER MOUNT
STEERING CYLINDER
CENTER HINGE PIN
DIVERTER VALVE
GROUND DRIVEN STEERING PUMP

BRAKE AND AIR SYSTEM
STRUCTURE AND FUNCTION
AIR PIPING
AIR CIRCUIT DIAGRAM
AIR TANK
AIR DRYER
SAFETY VALVE
BRAKE VALVE
AIR GOVERNOR
TWO-WAY VALVE
BRAKE CHAMBER
SLACK ADJUSTER
BRAKE
PARKING BRAKE
PARKING BRAKE SOLENOID VALVE
SPRING CYLINDER
BRAKE CALIPER

TESTING AND ADJUSTING
STANDARD VALUE TABLE
TOOL LIST
BRAKE PEDAL
AIR
AIR DRYER
BRAKE PERFORMANCE
BRAKE OIL PRESSURE
WEAR OF BRAKE DISC
AIR BLEEDING FROM BRAKE LINE
PARKING BRAKE
TROUBLESHOOTING

DISASSEMBLY AND ASSEMBLY
AIR GOVERNOR
AIR DRYER
BRAKE VALVE
BRAKE CHAMBER
SLACK ADJUSTER
BRAKE
SPRING CYLINDER
PARKING BRAKE
PARKING BRAKE PAD

MAINTENANCE STANDARD
BRAKE VALVE
BRAKE CHAMBER
SLACK ADJUSTER
BRAKE
PARKING BRAKE
SPRING CYLINDER

WORK EQUIPMENT SYSTEM
STRUCTURE AND FUNCTION
HYDRAULIC PIPING
HYDRAULIC CIRCUIT DIAGRAM
BUCKET LINKAGE
BUCKET POSITIONER AND BOOM KICK-OUT
HYDRAULIC TANK
HYDRAULIC PUMP
MAIN CONTROL VALVE
HYDRAULIC CYLINDER

TESTING AND ADJUSTING
STANDARD VALUE TABLE
TOOL LIST
DUMP AND LIFT CONTROL LEVERS
HYDRAULIC PRESSURE
LIFT ARM AND BUCKET
HYDRAULIC DRIFT OF LIFT ARM AND BUCKET
BUCKET POSITIONER
BOOM KICK-OUT
TROUBLESHOOTING

DISASSEMBLY AND ASSEMBLY
HYDRAULIC TANK
HYDRAULIC FILTER
STEERING PUMP
MAIN CONTROL VALVE
DUMP CYLINDER
LIFT CYLINDER
HYDRAULIC CYLINDER
WORK EQUIPMENT
COUNTERWEIGHT

MAINTENANCE STANDARD
MAIN CONTROL VALVE
DUMP CYLINDER
LIFT CYLINDER
BUCKET LINKAGE
BUCKET POSITIONER AND BOOM KICK-OUT
BUCKET
HYDRAULIC PUMP

ELECTRIC AND ELECTRONIC SYSTEM
STRUCTURE AND FUNCTION
ELECTRICAL WIRING DIAGRAM
ELECTRICAL WIRING 3D CIRCUIT DIAGRAM
ELECTRICAL WIRING CONNECTORS (CN) DIAGRAM
ENGINE STARTING CIRCUIT
ENGINE STOP CIRCUIT
ELECTRICAL TRANSMISSION CONTROL
KICK-DOWN SWITCH
KICK-DOWN ELECTRIC CIRCUIT
ELECTRICAL PARKING BRAKE CONTROL
ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)
BUCKET POSITIONER AND BOOM KICK-OUT

TESTING AND ADJUSTING
STANDARD VALUE TABLE
ADJUSTING SPEEDOMETER MODULE IN THE VEHICLE MONITOR
TROUBLESHOOTING

DISASSEMBLY AND ASSEMBLY
MACHINE MONITOR

OTHER
DISASSEMBLY AND ASSEMBLY
CAB
GEAR PUMP
GENERAL
SA SERIES
METRIC CONVERSIONS

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