Komatsu Backhoe Loader WB150AWS-2 service & repair manual

Description Komatsu Backhoe Loader WB150AWS-2 service & repair manual

Komatsu Backhoe Loader WB150AWS-2 pdf workshop service repair manual + operation & maintenance manual

Serial number 150F80001 and up

SERVICE MANUAL CONTENT:
STRUCTURE AND FUNCTION
Power train
Transmission
Drive shafts
Control valve block
Front axle
Rear axle
Steering system (4WS)
Hydraulic pump
Steering unit
Hydraulic circuit
Shovel control valve
Backhoe control valve
CLSS
Solenoid valve
Safety valve
Brake pump
Shovel cylinder
Backhoe cylinder
Air-conditioning unit
How the air-conditioning unit functions
Electrical diagram

TESTING AND ADJUSTMENTS
Normal or standard technical data
Special tools
Measuring engine speed
Adjusting valve clearance
Measuring compression pressure
Testing and adjusting fuel injection timing
Checking and tightening the fan - belt
Checking and tightening the compressor fan - belt
Measuring accelerator pedal operating travel and accelerator lever
Adjusting brake pedal travel, brake alignment microswitches
Air bleeding - releasing residual pressure
Checking and setting pressure in the attachments hydraulic circuit
Testing and adjusting of load sensing signal (LS valve)
Testing and adjusting of unloading valve
Checking unloading valve functionality
Testing priority valve operation
Testing and setting steering control system pressure
Testing brake system
Control of the engine speed under load
Testing pressures in the power train group
Testing the correct functioning of the power train clutches
Adjusting the sensor for Return to Dig device
Analysis of causes hydraulic drift
Testing the air-conditioning unit
Emptying the air-conditioning unit
Troubleshooting

REMOVAL AND INSTALLATION

STANDARD MAINTENANCE
Transmission
Front axle
Rear axle
Hydraulic pump
Brake pump
Shovel cylinders
Backhoe cylinders
Front working equipment
Swing bracket
Backhoe working equipment

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