Komatsu Wheel Loader WA430-6E0 service & repair manual

Description Komatsu Wheel Loader WA430-6E0 service & repair manual

Komatsu Wheel Loader WA430-6E0 pdf workshop service manual

Serial numbers:
H60266 and up

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

MANUAL CONTENT:
Index and foreword
Foreword and general information
Safety notice
How to read the shop manual
Explanation of terms for maintenance standard
Handling of electric equipment and hydraulic component
Handling of connectors newly used for engines
How to read electric wire code
Precautions when carrying out operation
Method of disassembling and connecting push-pull type coupler
Standard tightening torque table
Conversion table

Specification
Specification and technical data
Specification dimension drawing
Weight table
Table of fuel, coolant and lubricants

Structure, function and maintenance standard
Engine and cooling system
Engine mount and transmission mount
Cooling system
Cooling fan pump
Cooling fan motor
Power train
Power train system diagram
Drive shaft
Power train piping diagram
Torque converter
Transmission
Flow control valve
Transmission control valve
ECMV
Main relief valve and torque converter relief valve
Axle
Differential
Limited slip differential
Final drive
Steering system
Steering piping diagram
Steering column
Steering pump
Steering valve
Orbit-roll valve
Stop valve
Steering relief valve
Steering cylinder
Emergency steering motor
Emergency steering pump
Joystick steering lever linkage
Steering electric lever
Joystick EPC valve
Brake system
Brake piping diagram
Charge valve
Brake valve
Accumulator (for brake)
Brake
Parking brake control
Parking brake
Parking brake solenoid valve
Emergency parking brake release valve
Undercarriage and frame
Axle mount and center hinge pin
Tires
Hydraulic system, Part 1
Hydraulic piping diagram
Work equipment control lever linkage
Hydraulic tank
Power train pump
Work equipment pump
Work equipment control valve
CLSS
Each function and operation of each valve
Hydraulic system, Part 2
PPC valve
Stabilizer valve
Accumulator (for PPC circuit)
Accumulator (for ECSS)
Work equipment PPC cut-off solenoid valve
Work equipment1
Work equipment linkage
Bucket
Bucket positioner and boom kick-out
Work equipment cylinder
Cab and its attachments
Cab
Air conditioner
Electrical system, Part 1
Machine monitor system
Machine monitor
Electrical system, Part 2
Electrical system (Transmission controller system)
Transmission controller
Electrical system (Work equipment controller system)
Work equipment controller
Electrical system, Part 3
Electric transmission control
Kickdown switch and hold switch
Multi-function knob
Joystick steering knob
KOMTRAX system
Engine starting circuit
Engine stopping circuit
Preheating circuit
Engine power mode selector circuit
Engine output derating function
Automatic warm-up function
Parking brake circuit
Sensor

Standard value table
Standard service value table
Standard value table for engine
Standard value table for chassis

Testing and adjusting
Tools for testing, adjusting, and troubleshooting
Sketch of special tool
Testing exhaust gas color
Testing exhaust temperature
Adjusting valve clearance
Testing compression pressure
Testing blow-by pressure
Testing engine oil pressure
Testing intake air (boost) pressure
Handling fuel system equipment
Releasing residual pressure in fuel system
Testing fuel pressure
Testing fuel return and leak amount
Bleeding air from fuel circuit
Testing leakage in fuel system
Handling reduced cylinder mode operation
Handling no-injection cranking operation
Handling controller voltage circuit
Check of muffler and muffler stack for looseness and damage
Check of muffler function
Check of installed condition of cylinder head and manifolds
Check of engine piping for damage and looseness
Testing and adjusting air conditioner compressor belt tension
Replacing alternator belt
Adjusting transmission speed sensor
Adjusting directional lever length
Adjusting gear shift lever length
Testing directional lever
Testing and adjusting power train oil pressure
Procedure for flushing torque converter and transmission hydraulic circuit
Method of moving machine when transmission valve is broken
Checking axle final drive for oil leakage
Checking drive shafts for looseness, play and damage
Testing and adjusting steering stop valve
Testing and adjusting steering wheel
Testing and adjusting steering oil pressure
Bleeding air from steering circuit
Testing and adjusting, Part 2
Testing hydraulic drive fan
Bleeding air from hydraulic drive fan circuit
Testing brake pedal
Testing and adjusting brake pedal linkage
Testing brake performance
Testing and adjusting accumulator charge pressure
Testing wheel brake oil pressure
Testing wear of wheel brake disc
Bleeding air from wheel brake circuit
Releasing residual pressure in brake accumulator circuit
Testing parking brake performance
Testing parking brake oil pressure
Testing wear of parking brake disc
Method of releasing parking brake manually
Testing and adjusting work equipment control lever
Testing and adjusting work equipment PPC oil pressure
Testing and adjusting work equipment oil pressure
Bleeding air from work equipment circuit
Releasing residual pressure in work equipment circuit
Procedure for testing of nitrogen gas pressure and charging of nitrogen gas of ECSS (Electronically Controlled Suspension System) accumulator
Testing and adjusting bucket positioner
Testing and adjusting boom kick-out
Checking proximity switch operation pilot lamp
Procedure for testing diodes
Preparation work for troubleshooting for electrical system
Starting KOMTRAX terminal operations
Indicator lamps of KOMTRAX terminal
Testing and adjusting, Part 3
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor
Special functions of machine monitor (EMMS)
Pm-clinic inspection table

Troubleshooting
Failure code table and fuse locations
Failure code table
Fuse locations
General information on troubleshooting
Points to remember when troubleshooting
Sequence of events in troubleshooting
Testing before troubleshooting
Classification and procedures of troubleshooting
Information contained in troubleshooting table
Connection table for connector pin numbers
T- branch box and T- branch adapter table
Troubleshooting by failure code (Display of code)
Troubleshooting of electrical system (E-mode)
Troubleshooting of hydraulic and mechanical system (H-mode)
Troubleshooting of engine (S-mode)

Disassembly and assembly
General information on disassembly and assembly
How to read this manual
Coating materials list
Special tools list
Sketches of special tools
Engine and cooling system
Removal and installation of fuel supply pump assembly
Removal and installation of fuel injector assembly
Removal and installation of cylinder head assembly
Removal and installation of engine hood and radiator guard assembly
Removal and installation of radiator assembly
Removal and installation of air aftercooler assembly
Removal and installation of hydraulic oil cooler assembly
Removal and installation of engine assembly
Removal and installation of front seal assembly
Removal and installation of rear oil seal assembly
Removal and installation of cooling fan and fan motor assembly
Removal and installation of fuel tank assembly
Power train, Part 1
Removal and installation of torque converter and transmission assembly
Disassembly and assembly of torque converter assembly (Standard specification)
Disassembly and assembly of torque converter assembly (Lock-up specification)
Disassembly and assembly of transmission assembly
Disassembly and assembly of transmission clutch pack assembly
Disassembly and assembly of parking brake assembly
Power train, Part 2
Removal and installation of front axle assembly
Removal and installation of rear axle assembly
Disassembly and assembly of axle housing
Disassembly and assembly of differential assembly
Steering system
Removal and installation of steering demand valve assembly
Brake system
Removal and installation of parking brake disc and plate
Undercarriage and frame
Removal and installation of center hinge pin
Removal and installation of counterweight
Hydraulic system
Removal and installation of work equipment control valve assembly
Removal and installation of power train pump and work equipment pump assembly
Removal and installation of steering pump and cooling fan pump assembly
Removal and installation of hydraulic tank assembly
Work equipment
Removal and installation of work equipment assembly
Disassembly and assembly of hydraulic cylinder assembly
Cab and its attachments
Removal and installation of operator's cab and floor frame assembly
Removal and installation of operator's cab glass (stuck glass)
Disassembly and assembly of operator's seat assembly (Standard specification)
Disassembly and assembly of operator's seat assembly (Manufactured by GRAMMER)
Removal and installation of air conditioner unit assembly
Electrical system
Removal and installation of engine controller assembly
Removal and installation of KOMTRAX terminal assembly

Diagrams and drawings
Hydraulic diagrams and drawings
Power train hydraulic circuit diagram
Automatic greasing circuit diagram
Hydraulic circuit diagram
Electrical diagrams and drawings
Work equipment controller system electrical circuit diagram
Connector list

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