Komatsu Wheel Loader WA900-3 Avance service & repair manual

Description Komatsu Wheel Loader WA900-3 Avance service & repair manual

Komatsu Wheel Loader WA900-3 Avance pdf workshop service repair manual + operation & maintenance manual

Serial number 50001 and up

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

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

STRUCTURE AND FUNCTION
Power train system
Engine control
Servo cylinder
Radiator and cooler
Damper
Torque converter and
transmission piping
Transmission hydraulic system diagram
Transmission hydraulic circuit diagram
Torque converter
Transmission
Transfer
Transmission control valve
Torque convertor oil cooler
Drive shaft
Center support
Axle
Final drive
Axle mount
Center hinge pin
Tire and wheel
Steering piping diagram
Steering column
Joystick linkage
Steering pump
Switch pump
Steering demand valve
Steering unit (Orbit-roll valve)
Proportional solenoid valve
EPC valve
Rotary valve
Tow-way restrictor valve
Diverter valve
Brake piping
Brake circuit diagram
Brake valve
Charge valve
Accumulator (for brake)
Slack adjuster
Brake
Parking brake
Spring cylinder
Parking brake solenoid valve
Hydraulic piping
Work equipment hydraulic circuit diagram
Work equipment lever linkage
Hydraulic tank
Main piston pump
ES valve
Servo valve
PPC valve
PPC relief valve
Accumulator (for PPC valve)
Main control valve
Cooling fan hydraulic piping
Cooling fan hydraulic circuit diagram
Priority valve
Cooling fan motor
Lubrication of work equipment
Work equipment linkage
Bucket positioner and boom kick-out
Operation of proximity switch
Cab
ROPS canopy
Air conditioner
Electric circuit diagram
Machine monitor system
Main monitor
Maintenance monitor
Multi monitor system (if equipped)
Engine starting circuit
Engine stop circuit
Preheating circuit
Electric transmission control
Kick-down, hold switch
Joystick steering system
Transmission and
Joystick steering controller
AJSS (Advanced joystick steering system)
Transmission and joystick steering controller
Electric parking brake control
Brake cooling system
55°C specification
Emergency engine stop (for Rio Tinto)
Hydraulic oil level sensor (for Rio Tinto)
Battery and starter isolator, battery jump start (for Rio Tinto)

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

Troubleshooting

DISASSEMBLY AND ASSEMBLY
STANDARD TIGHTENING TORQUE TABLE
PRECAUTIONS WHEN CARRYING OUT OPERATION
METHOD OF DISASSEMBLING AND CONNECTING PUSH-PULL TYPE COUPLER
SPECIAL TOOL LIST
SKETCHES OF SPECIAL TOOLS
STARTING MOTOR
ALTERNATOR
ENGINE OIL COOLER
FUEL INJECTION PUMP FOR LEFT BANK
FUEL INJECTION PUMP FOR RIGHT BANK
WATER PUMP
NOZZLE HOLDER
TURBOCHARGER
ENGINE FRONT SEAL
ENGINE REAR SEAL
CYLINDER HEAD
RADIATOR
ENGINE
DAMPER
TORQUE CONVERTER AND
TRANSMISSION ASSEMBLY
TORQUE CONVERTER
TORQUE CONVERTER VALVE
TRANSMISSION
TRANSMISSION VALVE
TRANSFER
PTO
CENTER SUPPORT
DRIVE SHAFT
FRONT AXLE
REAR AXLE
DIFFERENTIAL

FINAL DRIVE
ORBIT-ROLL
EMERGENCY STEERING PUMP
DIVERTER VALVE
ACCUMULATOR CHARGE VALVE
STEERING STOP VALVE
STEERING CYLINDER
STEERING VALVE
BRAKE VALVE
SLACK ADJUSTER
BRAKE
PARKING BRAKE CALIPERS
PARKING BRAKE PAD
PARKING BRAKE SPRING CYLINDER
BRAKE OIL TANK
HYDRAULIC PUMP
SERVO CYLINDER
HYDRAULIC TANK AND
FILTER CASE ASSEMBLY
PPC VALVE
WORK EQUIPMENT CONTROL VALVE
CAB
FLOOR FRAME
CENTER HINGE PIN
WORK EQUIPMENT
BOOM FRONT END BUSH
BUCKET CYLINDER
LIFT CYLINDER
HYDRAULIC CYLINDER
AIR CONDITIONER UNIT
AIR CONDITIONER COMPRESSOR
RECEIVER TANK
AIR CONDITIONER CONDENSER
TRANSMISSION AND
STEERING CONTROLLER
MAIN MONITOR
FUEL TANK
COUNTERWEIGHT

MAINTENANCE STANDARD
Engine mount
Transmission mount
Damper
Torque converter charging, PPC and brake pump
Torque converter
Torque converter regulator valve
Transmission
Transfer
Transmission control valve
Drive shaft
Center support
Differential
Final drive
Axle mount
Center hinge pin
Steering column
Steering demand valve
Diverter valve
Steering cylinder mount
Emergency steering pump
Brake valve
Slack adjuster
Brake
Parking brake
PPC valve
PPC relief valve
Steering pump
Switch pump
Main piston pump
Control pump
Cooling fan motor
Main control valve
Hydraulic cylinder
Bucket linkage
Bucket positioner and boom kick-out
Brake cooling pump

OTHERS
Electric circuit diagram
WITH ELECTRONIC GOVERNOR
Troubleshooting of electronic governor system

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