Komatsu Wheel Loader WA600-1 (SERIAL NUMBERS A51001 and up) Shop Manual

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CONTENTS
01 GENERAL
GENERAL SPECIFICATIONS – STANDARD BOOM
GENERAL SPECIFICATIONS – HI- LIFT BOOM
DIMENSIONS
SPECIFICATIONS
WEIGHT TABLE
FUEL, COOLANT, AND LUBRICANTS
10 STRUCTURE AND FUNCTION
GENERAL (POWER TRAIN)
TORQUE CONVERTER, TRANSMISSION PIPING
TORQUE CONVERTER OIL COOLER
TORQUE CONVERTER
TORQUE CONVERTER RELIEF VALVE
TORQUE CONVERTER REGULATOR VALVE
TORQUE CONVERTER OIL FILTER
LUBRICATION BY-PASS VALVE
TRANSMISSION MOUNT
TRANSMISSION
TRANSMISSION CONTROL VALVE
TRANSMISSION SOLENOID VALVE
EMERGENCY MANUAL SPOOL
TRANSMISSION PILOT OIL FILTER
TRANSFER
DRIVE SHAFT
CENTER SUPPORT
AXLE MOUNT
AXLES
DIFFERENTIAL
FINAL DRIVE
TIRE AND WHEEL
GENERAL (STEERING)
STEERING COLUMN, GEAR BOX, AND LINKAGE
HYDRAULIC CIRCUIT FOR STEERING
STEERING CONTROL SYSTEM
TWO-WAY RESTRICTOR VALVE
STEERING CYLINDER
CENTER HINGE PIN
GROUND DRIVEN STEERING
GENERAL (BRAKE AND AIR SYSTEM)
BRAKE AND AIR PIPING
BRAKE AND AIR CIRCUIT SYSTEM
AIR TANKS
BRAKE VALVE
TWO-WAY VALVE
RELAY VALVE
BRAKE CHAMBER
SLACK ADJUSTER
BRAKE
PARKING BRAKE
BRAKE CALIPER
PARKING BRAKE SOLENOID VALVE
SPRING CYLINDER
HYDRAULIC TANK PRESSURIZING VALVE
GENERAL (HYDRAULIC WORK EQUIPMENT)
HYDRAULIC PIPING
HYDRAULIC CIRCUIT SCHEMATIC
HYDRAULIC CIRCUIT DIAGRAM
HYDRAULIC TANK
HYDRAULIC PUMPS
GENERAL (GEAR PUMPS)
PROPORTIONAL PRESSURE CONTROL (PPC) VALVE
PPC RELIEF VALVE
MAIN CONTROL VALVE
FLOAT SELECTOR AND UNLOADER VALVE
ACCUMULATOR (FOR WORK EQUIPMENT)
HYDRAULIC CIRCUIT OPERATION
HYDRAULIC CYLINDERS (BUCKET AND BOOM)
BUCKET LINKAGE
BUCKET POSITIONER AND BOOM KICK-OUT
WORK EQUIPMENT LEVER LINKAGE
BUCKET
ELECTRICAL WIRING DIAGRAM
ENGINE STARTING CIRCUIT
ENGINE STOP CIRCUIT
ETHER START CIRCUIT
ELECTRIC TRANSMISSION CONTROL
COMBINATION SWITCH
TRANSMISSION CUT-OFF SWITCH
TRANSMISSION CUT-OFF SELECTOR SWITCH
NEUTRALIZER SWITCH
KICK-DOWN SWITCH
KICK-DOWN ELECTRIC CIRCUIT
ELECTRIC PARKING BRAKE CONTROL
PROXIMITY SWITCH
ELECTRONIC VEHICLE MONITORING SYSTEM (EVMS)
SENSORS
AIR CONDITIONING (GENERAL)
AIR CONDITIONING PIPING DIAGRAM
AIR CONDITIONING CONDENSER
RECEIVER W/SIGHT GLASS (LIQUID TANK)
AIR CONDITIONER UNIT
AIR CONDITIONER CONTROL PANEL
ENGINE DIAGNOSTIC SYSTEM
ENGINE DIAGNOSTIC ELECTRICAL SCHEMATIC
20 TESTING AND ADJUSTING
STANDARD VALUE TABLE – ENGINE
STANDARD VALUE TABLE – CHASSIS
STANDARD VALUE TABLE – ELECTRICAL SYSTEM
TOOLS FOR TESTING, ADJUSTING & TROUBLESHOOTING
MEASURING ENGINE SPEEDS
MEASURING INTAKE MANIFOLD PRESSURE
MEASURING INTAKE AIR RESTRICTION
MEASURING ENGINE LUBRICATING OIL PRESSURE
MEASURING FUEL FILTER INLET RESTRICTION
MEASURING BLOW-BY PRESSURE
MEASURING EXHAUST BACK PRESSURE
MEASURING COOLANT TEMPERATURE
MEASURING AND ADJUSTING VALVE CLEARANCE
ALTERNATOR FAN BELT
FAN BELT TENSIONER
ENGINE OIL PRESSURE
EXHAUST OIL TEMPERATURE
EXHAUST GAS COLOR
MEASURING ENGINE STALL SPEEDS
ACCELERATOR PEDAL
MEASURING SHIFT LEVERS
MEASURING TORQUE CONVERTER AND TRANSMISSION OIL PRESSURE
METHOD FOR OPERATION OF EMERGENCY MANUAL SPOOL
TIRES AND WHEELS
MEASURING STEERING WHEEL PLAY
MEASURING STEERING WHEEL OPERATING FORCE
OPERATING TIME OF STEERING WHEEL
STEERING OIL PRESSURE
STEERING LINKAGE
MEASURING BRAKE PEDAL
MEASURING AIR PRESSURE
BRAKE PERFORMANCE
CHECKING BRAKE OIL PRESSURE
MEASURING WEAR OF BRAKE DISC
AIR BLEEDING FROM BRAKE LINE
PARKING BRAKE PERFORMANCE
CHECKING AND ADJUSTING PARKING BRAKE
MEASURING BUCKET AND BOOM CONTROL LEVERS
ADJUSTING BUCKET AND BOOM CONTROL LEVERS
HYDRAULIC CIRCUIT FLUSHING
PPC RELIEF VALVE PRESSURE
WORK EQUIPMENT RELIEF VALVE
MEASURING WORK EQUIPMENT OPERATING SPEEDS
WORK EQUIPMENT HYDRAULIC DRIFT
BUCKET POSITIONER
BOOM KICK-OUT
MACHINE MONITOR (SPEEDOMETER MODULE)
TROUBLESHOOTING
30 DISASSEMBLY AND ASSEMBLY
STARTING MOTOR
ALTERNATOR
ENGINE OIL COOLER
FUEL INJECTION PUMP
WATER PUMP
NOZZLE HOLDER
TURBOCHARGER
AIR COMPRESSOR
CYLINDER HEAD
RADIATOR
ENGINE
FUEL TANK
TORQUE CONVERTER CHARGING AND PPC PUMP
TORQUE CONVERTER
TORQUE CONVERTER ASSEMBLY
TRANSMISSION
TRANSFER
TRANSMISSION CONTROL VALVE
SPEED VALVE ASSEMBLY (TRANSMISSION CONTROL)
MODULATING VALVE ASSEMBLY
MAIN RELIEF VALVE ASSEMBLY
FRONT AXLE
REAR AXLE
FRONT DIFFERENTIAL
REAR DIFFERENTIAL
DIFFERENTIAL GEAR
FINAL DRIVE
CENTER SUPPORT
DRIVE SHAFT
STEERING, SWITCH PUMP
STEERING GEAR
STEERING GEAR BOX
STEERING VALVE
STEERING CYLINDER
CENTER HINGE PIN
AIR GOVERNOR
BRAKE VALVE
BRAKE CHAMBER
SLACK ADJUSTER
BRAKE ASSEMBLY
SPRING CYLINDER
PARKING BRAKE
PARKING BRAKE PAD
HYDRAULIC TANK
HYDRAULIC FILTER
WORK EQUIPMENT PUMP
PPC VALVE ASSEMBLY
MAIN CONTROL VALVE
BUCKET CYLINDER
BOOM CYLINDER
BOOM AND BUCKET CYLINDERS
WORK EQUIPMENT
COUNTERWEIGHT
MACHINE MONITOR
40 MAINTENANCE STANDARD
ENGINE MOUNT
TRANSMISSION MOUNT
TORQUE CONVERTER
TORQUE CONVERTER REGULATOR VALVE
TRANSMISSION
TRANSMISSION CONTROL VALVE (UPPER VALVE)
TRANSMISSION CONTROL VALVE (LOWER VALVE)
TRANSMISSION CONTROL VALVE (SOLENOID VALVE)
TRANSFER
DRIVE SHAFTS
CENTER SUPPORT
AXLE MOUNT
DIFFERENTIAL
FINAL DRIVE
STEERING COLUMN AND GEAR BOX
STEERING VALVE
STEERING CYLINDER MOUNT
STEERING CYLINDER
CENTER HINGE PIN
GROUND DRIVEN STEERING PUMP
DIVERTER VALVE
BRAKE VALVE
BRAKE CHAMBER
SLACK ADJUSTER
BRAKE
PARKING BRAKE
SPRING CYLINDER
MAIN CONTROL VALVE
TRANSMISSION LUBRICATION (SAL125) + TORQUE CONVERTER (SAL100) + PPC PUMP (SAL20)
STEERING (SAL 125) + SWITCH PUMP (SAL 100)
PPC VALVE
BUCKET CYLINDER
BOOM CYLINDER
BUCKET LINKAGE
BUCKET POSITIONER AND BOOM KICK-OUT
BUCKET