Komatsu Wheel Loader WA320-3 service & repair manual

Description Komatsu Wheel Loader WA320-3 service & repair manual

Komatsu Wheel Loader WA320-3 pdf workshop service repair manual + operation & maintenance manual

Serial numbers:
15001 and up
50001 and up
A30001 and up

Technical data, specifications, testing, troubleshooting, maintenance, electrical diagrams, hydraulic schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
GENERAL
Dimensions and weights
Specifications
Weight table
General view of controls and gauges
List of lubricant
Outlines of service
Torque list

STRUCTURE AND FUNCTION
Power train
Power train system
Torque converter, transmission piping
Transmission hydraulic system diagram
Torque converter
Torque converter oil filter
Transmission
Clutch
Transmission control valve
Transmission solenoid valve
Pilot reducing valve
Main relief valve
Torque converter outlet port valve
Priority valve
Quick return valve
Directional selector valve
H-L selector valve and range selector valve
Emergency manual spool
Modulation valve
Pilot oil filter
Accumulator valve
Drive shaft
Axle
Differential
Final drive
Axle mount, center hinge pin
Steering piping
Steering column, Orbit roll
Priority valve
Steering valve (Orbit roll)
Cushion valve
2-way restrictor valve
Emergency Steering
Brake piping
Brake hydraulic circuit diagram
Brake valve
Accumulator charge valve
Accumulator (for brake)
Brake pressure regulating valve
Accumulator for PPC valve
Brake Accumulator unit
Brake
Parking brake control
Parking brake
Parking brake valve
Hydraulic piping
Work equipment hydraulic circuit diagram
Work equipment lever linkage
Hydraulic tank
Oil filter bypass valve
PPC valve
Operation of PPC relief valve
Accumulator (For PPC valve)
Main control valve
Relief valve
Safety valve with suction
Suction valve
Main control valve
Safety valve with suction
Anticavitation valve
Main control valve
Operation of cut-off valve
Work equipment valve operation
Hydraulic safety system
Work equipment linkage
Bucket
Bucket positioner and boom kick-out
Machine monitor system
Main monitor
Maintenance monitor
Transmission auto-shift control function
Transmission controler
E.C.S.S. (ALS-Electronic)
Sensors
Engine starting circuit
Etherstart (Option)
Engine start/ stop/ preheating circuit
Electric transmission control
Kick-down / hold switch
Kick-down electric circuit diagram (Normal)
Transmission cut-off switch
Transmission cut-off function
Electric parking brake control
Air-conditioner

TESTING AND ADJUSTING
Standard value table for engine
Standard value table for chassis
Standard value table for electrical system
Test certificate
Tools for testing and adjusting
Adjusting valve clearance
Measuring compression pressure
Measuring blow-by pressure
Testing and adjusting fuel injection timing
Measuring exhaust color
Measuring intake air pressure (Boost pressure)
Measuring engine oil pressure
Testing the fan belt tension
Measuring accelerator pedal
Basic adjustment of accelerator pedal
Measuring operating force, travel of speed lever
Measuring stall speed
Measuring torque converter, transmission, parking brake pressure
Method of operating emergency manual spool
Measuring clearance between tire and wheel
Testing and adjusting steering wheel
Measuring steering oil pressure
Measuring operating force, travel of brake pedal
Measuring brake performance
Testing brake oil pressure
Testing for brake disc wear
Bleeding air from brake system
Measuring parking brake performance
Manual release note for parking brake
Testing wear of parking brake disc
Measuring work equipment control lever
Measuring work equipment hydraulic pressure
Measuring PPC valve pressure
Measuring work equipment
Testing and adjusting bucket positioner
Testing and adjusting boom kick-out
Adjusting main monitor (Speedometer module)
Gas side test and topping up gas pressure
Hydraulic accumulator

DISASSEMBLY AND ASSEMBLY
PRECAUTIONS WHEN CARRYING OUT OPERATION
SPECIAL TOOL LIST
SKETCHES OF SPECIAL TOOLS
STARTING MOTOR
ALTERNATOR
ENGINE OIL COOLER
FUEL INJECTION PUMP
WATER PUMP
TURBOCHARGER
NOZZLE HOLDER
THERMOSTAT
CYLINDER HEAD
RADIATOR
ENGINE
TORQUE CONVERTER CHARGING PUMP
TORQUE CONVERTER, TRANSMISSION
TORQUE CONVERTER
TRANSMISSION
TRANSMISSION CLUTCH PACK
TRANSMISSION CONTROL VALVE
TRANSMISSION ACCUMULATOR VALVE
TRANSMISSION MODULATING VALVE
DRIVE SHAFT
FRONT AXLE
REAR AXLE
DIFFERENTIAL
AXLE HOUSING
CENTER HINGE PIN
PRIORITY VALVE
STEERING VALVE
STEERING CYLINDER

MAINTENANCE STANDARD
Engine mount, transmission mount
Torque converter charging pump
Torque converter
Transmission
Transmission control valve
Modulation valve assembly
Accumulator valve
Drive shaft
Differential
Final drive
Axle mount
Center hinge pin
Steering column
Priority valve
Steering cylinder mount
Brake
Brake valve
Parking brake
Hydraulic pump
Main control valve
PPC valve
Hydraulic cylinder
Work equipment linkage
Bucket
Bucket positioner and boom kick-out

Electrical circuit diagram

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