Komatsu Wheel Loader WA250-5 WA250PT-5 service & repair manual

Description Komatsu Wheel Loader WA250-5 WA250PT-5 service & repair manual

Komatsu Wheel Loader WA250-5, WA250PT-5 pdf workshop service repair manual + operation & maintenance manual

Serial number 70001 and up

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

STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
Engine mount and transfer mount
Damper
Cooling system
Transfer oil cooler
Power train
Power train system diagram
Drive shaft (propeller shaft)
HST hydraulic piping diagram
HST pump
High-pressure relief valve
Low-pressure relief valve
HST charge pump
Speed-related valve (DA valve)
High-pressure cut-off valve
HST motor
EP servo valve
HA servo valve
Forward-reverse shuttle valve
Transfer
Clutch solenoid valve
Axle
Differential
Limited-slip differential
Final drive
Axle mounting and center hinge pin
Steering piping
Steering column
Priority valve
Orbit-roll valve
2-way restrictor valve
Cushion valve
Steering cylinder
Emergency steering piping
Emergency steering valve
Brake piping
Brake valve
Inching valve
Charge valve
Accumulator (for brake)
Slack adjuster
Brake
Parking brake control
Parking brake
Hydraulic piping
Hydraulic tank
4-gear pump unit
Accumulator (for PPC circuit)
Lock valve
Bypass valve
Quick coupler valve
E.C.S.S. valve
Accumulator (for E.C.S.S.)
Hydraulic piping of cooling system
Cooling
Work equipment control valve
Work equipment PPC valve
Attachment PPC valve (if equipped)
Work equipment linkage
Bucket
Control of bucket positioner, boom kick-out,
and dump speed
Work equipment cylinder
Air conditioner (if equipped)
Machine monitoring system
Machine monitor
List of items displayed on monitor
Electrical system (HST controller system)
HST controller
Engine start circuit
Engine stop circuit
Preheating circuit
Parking brake circuit
Electronically controlled suspension system
Sensors

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

DISASSEMBLY AND ASSEMBLY
Removal and installation of assemblies
Disassembly and assembly of assemblies
Precautions when performing operation
Special tool list
Sketches of special tools
Removal, installation of fuel injection pump

OTHERS
Hydraulic circuit diagram
Electrical circuit diagram

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