Komatsu Wheel Loader WA470-5H WA480-5H Shop Manual

WA470-5H / WA480-5H
CONTENTS
SAFETY
Safety
General
How to read the shop manual
Hoisting instructions
Coating materials
Standard tightening torque
Electric wire code
Conversion tables
Units
GENERAL
General assembly drawing
Specifications
Weight table
List of lubricant and coolant
STRUCTURE AND FUNCTION, MAINTENANCE STANDARD
Radiator, oil cooler
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)
Brake piping
Brake valve
Charge valve
Accumulator (for brake)
Slack adjuster
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 PPC pumps
PPC relief valve
Travel damper valve (op)
Work equipment control valve
PPC valve
Work equipment control epc valve (op)
Shut off valve (op)
Cooling fan motor
Cooling fan motor drive pump
Servo valve
Safety valve
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
Parking brake circuit
Turn signal, hazard lamp circuit
Backup lamp, stop lamp circuit
Small lamp, head lamp circuit
Working lamp circuit
Horn circuit
Windshield wiper/window washer circuit (If equipped with cab)
Sensors
Standard value table for engine
Standard value table for chassis
TROUBLESHOOTING OF ENGINE CONTROL SYSTEM (ENG MODE)
Connector types and installation positions
Connector layout drawing
Transmission control system diagram
APPENDIX
Power train oil circuit diagram
Power train oil circuit diagram
Brake oil circuit diagram