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Komatsu WA420-3 (SN from H30051) 4WD Wheeled Loaders (Germany) Workshop Manual (VEBM470104)
Model
VEBM470104
SKU
40977
Brand
Komatsu
Availability:
Ready for Instant Download
$25.00
Generation
3
Language
English
Model of Truck
WA420-3
Region
Germany
Truck Class
WA420
All the features
Illustrated factory Workshop Manual for Komatsu 4WD Wheeled Loaders Models WA420-3.

This manual will assist you in diagnosing, repairing, and adjusting for your 4wd wheeled loader.
You can use a Windows, Mac, or Android device to view this manual. You only need to have a PDF reader installed.

Covered Models (Germany):
   WA420-3 (SN: H30051-)

Format: PDF, 970 pages
Language: English
Table of Contents:
   General
      Up to SN WA420H30296
      Dimensions and weights
      Specifications
      Weight table
      SN WA420H30297 and up
      Dimensions and weights
      Specifications
      Weight table
      List of lubricant and water
      Outlines of service
      General view of controls and gauges
      Torque list
   Structure and function
      Power train
      Power train system
      Torque converter, transmission piping
      Transmission hydraulic system diagram
      Transmission hydraulic circuit diagram
      Torque converter
      Transmission
      Clutch
      Transmission control valve
      Transmission solenoid valve
      Pilot reducing valve
      Main relief valve
      Torque converter outlet port valve
      Priority valve
      Transmission oil pressure system diagram
      H-L selector valve and range selector valve
      Emergency manual spool
      Electronic control modulation valve
      Pilot oil filter
      Accumulator valve
      Flow valve
      Check valve
      Drive shaft
      Axle
      Differential
      Final drive
      Axle mount, center hinge pin
      Steering piping
      Steering column, orbit roll
      Hydraulic circuit diagram for steering
      Orbit-roll valve
      Steering demand valve
      Overload relief valve
      Steering relief valve
      Operation of demand valve
      Emergency steering
      Brake piping
      Brake circuit diagram
      Brake valve
      Charge valve
      Accumulator for system brake
      Slack adjuster
      Brake circuit diagram
      Brake valve (dual circuit)
      Brake valve (single circuit)
      Brake pressure regulating valve
      Accumulator (for brake)
      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
      PPC valve
      PPC relief valve
      Accumulator for PPC valve
      Main control valve (up to H30296)
      Relief valve (up to H30296
      Safety valve (with suction)
      Suction valve
      Main control valve (H30297 and up)
      Safety valve with suction (H30297 and up)
      Anticavitation valve (H30297 and up)
      Safety valve (H30297 and up)
      Hydraulic safety system
      Hydraulic safety system location (up to H30431)
      Hydraulic safety valve (up to H30431)
      Work equipment linkage
      Bucket
      Bucket positioner and boom kick-out
      Machine monitor system
      Main monitor
      Maintenance monitor
      Transmission auto-shift control system
      Transmission controller
      E.C.S.S.
      Sensors
      Engine start circuit
      Ether start
      Electric transmission control
      Combination switch
      Kick-down, hold switch
      Transmission electric circuit diagram
      Transmission cut-off switch
      Transmission cut-off function
      Electric parking brake control
      Air-conditioner
      Wiring diagrams
   Testing and adjusting
      Standard value table for engine
      Standard value table for chassis
      Test certificate
      Standard value table for electrical parts
      Tools for testing, adjusting and troubleshooting
      Adjusting valve clearance
      Measuring compression pressure
      Measuring blow-by pressure
      Testing and adjusting fuel injection timing
      Mesuring 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 oil pressure
      Method of operating emergency manual spool
      Measuring clearance between tyre and wheel
      Measuring operating force of steering wheel
      Measuring steering oil pressure
      Measuring operating force, travel of brake pedal
      Measuring brake performance
      Testing brake oil pressure
      Measuring brake disc wear
      Bleeding air from brake system
      Measuring parking brake performance
      Method of manual release of parking brake
      Testing wear of parking brake disc
      Measuring work equipment control lever
      Measuring PPC valve pressure
      Measuring work equipment
      Testing and adjusting bucket positioner
      Testing and adjusting boom kick-out
      Adjusting main monitor (speedometer modul)
      Checking for abnormality in fuel level sensor
      Troubleshooting
      Points to remember when troubleshooting
      Sequence of events in troubleshooting
      Precautions when carrying out maintenance
      Handling connectors
      Checks before troubleshooting
      Method of using troubleshooting charts
      Connector types and mounting locations, connector pin arrangement diagram
      Connection table for connector pin numbers
      Troubleshooting of engine system (S mode)
      Troubleshooting of main monitor system (M mode)
      Troubleshooting of maintenance monitor system (K mode)
      Troubleshooting of electrical system (E mode)
      Troubleshooting of transmission controller system (A mode)
      Troubleshooting of hydraulic and mechanical system (Chassis related) (T mode)
      Troubleshooting of ECSS (Electronically Controlled Suspension System) (D mode)
   Disassembly and assembly
      Method of using manual
      Precautions when carrying out operation
      Special tool list
      Starting motor
      Alternator
      Engine oil cooler
      Fuel injection pump
      Water pump
      Turbocharger
      Thermostat
      Cylinder head
      Torque converter charging pump
      Torque converter, transmission
      Torque converter
      Tranmission
      Transmission clutch pack
      Parking brake
      Transmission control valve
      Transmission accumulator valve
      Drive shaft
      Front axle
      Rear axle
      Front differential
      Rear differential
      Differential
      Final drive
      Center hinge pin
      Steering, orbit roll
      Steering valve
      Steering, switch pump
      Steering cylinder
      Brake valve
      Right brake valve (tandem)
      Left brake valve (single)
      Slack adjuster
      Brake
      Parking brake disc
      Hydraulic tank
      Work equipment, PPC pump
      PPC valve
      Main control valve
      Bucket cylinder
      Boom cylinder
      Hydraulic cylinder
      Work equipment
      Counterweight
      Fuel tank
      Cab
      Main monitor
      Maintenance monitor
      Air conditioner unit
      Air conditioner condenser
      Dry receiver
      Air conditioner compressor
   Maintenance standard
      Engine mount, transmission mount
      Torque converter
      Transmission
      Transmission control valve
      Drive shaft
      Diffential
      Final drive
      Axle mount
      Steerig column, orbit roll
      Steering valve
      Steering cylinder mount
      Slack adjuster
      Brake valve
      Brake
      Parking brake
      Torque converter, transmission pump
      Steering, switch pump
      Hydraulic, PPC pump
      PPC valve
      Cut-off valve
      Main control valve
      Boom cylinder
      Bucket cylinder
      Center hinge pin
      Work equipment linkage
      Bucket
      Bucket positioner and boom kick-out

General

Generation
3
Language
English
Model of Truck
WA420-3
Region
Germany
Truck Class
WA420
Type of Document
Workshop Manual
Type of Truck
4WD Wheeled Loader
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