Factory Shop Manual For Komatsu Wheel Loader. Manual Contains Illustrations, Instructions, Diagrams For Step By Step Remove And Install, Assembly And Disassembly, Service, Inspection, Repair, Troubleshooting, Tune-Ups.
Format: PDF
Language: English
Pages: 1302
Number: VEBM180101 (september 2002)
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes
Model
Komatsu Wheel Loader
WA470-5H
SN H50051 And Up
WA480-5H
SN H50051 And Up
Contents
-SAFETY
Safety
General
How To Read The Shop Manual
Hoisting Instructions
Coating Materials
Standard Tightening Torque
Electric Wire Code
Conversion Tables
Units
-GENERAL
General Assembly Drawing
Specifications
Weight Table
List Of Lubricant And Coolant
-STRUCTURE AND FUNCTION, MAINTENANCE STANDARD
Radiator, Oil Cooler
Engine Mount, Transmission Mount
Power Train
Power Train System Diagram
Drive Shaft (Propeller Shaft)
Torque Converter, Transmission Piping
Torque Converter
Transmission
Transmission Control Valve
Axle
Differential
Final Drive
Axle Mounting, Center Hinge Pin
Steering Piping
Steering Column, Orbit-Roll
Steering Valve
Orbit-Roll Valve
Stop Valve
Steering Pump, Switch Pump
Emergency Steering Pump (Op)
Emergency Steering Motor (Op)
Steering Cylinder
Joystick Steering Lever (Op)
Steering Lever (Op)
Steering Switch Valve (Op)
Brake Piping
Brake Valve
Charge Valve
Accumulator (For Brake)
Slack Adjuster
Brake
Parking Brake Control
Parking Brake
Parking Brake Solenoid Valve
Parking Brake Emergency Release Valve
Hydraulic Piping
Work Equipment Control Lever
Hydraulic Tank
Torque Converter Charging, Work Equipment, And Ppc Pumps
PPC Relief Valve
Travel Damper Valve (Op)
Work Equipment Control Valve
PPC Valve
Work Equipment Control EPC Valve (Op)
Shut Off Valve (Op)
Cooling Fan Motor
Cooling Fan Motor Drive Pump
Servo Valve
Safety Valve
Work Equipment Linkage
Bucket
Bucket Positioner, Lift Arm Kick-Out
Work Equipment Cylinder
Cab (Op)
Air Conditioner (Op)
Machine Monitoring System
Machine Monitor
Transmission Control System
Transmission Controller
Work Equipment Control System (Op)
Work Equipment Controller
Electric Transmission Control
Kick Down, Hold Switch
Engine Starting Circuit
Engine Stop Circuit
Parking Brake Circuit
Turn Signal, Hazard Lamp Circuit
Backup Lamp, Stop Lamp Circuit
Small Lamp, Head Lamp Circuit
Working Lamp Circuit
Horn Circuit
Windshield Wiper/Window Washer Circuit (If Equipped With Cab)
Sensors
Standard Value Table For Engine
Standard Value Table For Chassis
-TESTING AND ADJUSTING 1
Standard Value Table For Engine
Standard Value Table For Chassis
Testing And Adjusting
-TESTING AND ADJUSTING 2
Measuring Engine Speed
Measuring Exhaust Color
Measuring Exhaust Temperature
Adjusting Valve Clearance
Measuring Compression Pressure
Measuring Blow-By Pressure
Measuring Engine Oil Pressure
Measuring Air Supply Pressure (Boost Pressure)
Measuring Fuel Pressure
Adjusting Engine Speed Sensor
Handling Equipment In Fuel System
Releasing Remaining Pressure In Fuel System
Bleeding Air From Fuel Circuit
Reduced Cylinder Mode Operation For Engine
Checking For Leakage In Fuel System
Adjusting Accelerator Pedal Potentiometer
Adjusting Accelerator Pedal Microswitch
Adjusting Transmission Speed Sensor
Testing And Adjusting Powertrain Oil Pressure
Flushing Torque Converter, Transmission Hydraulic Circuit
Moving Machine When Transmission Valve Fails
Testing And Adjusting Steering Control
Testing And Adjusting Steering Oil Pressure
Measuring Brake Oil Pressure
Testing Wear Of Wheel Brake Disc
Bleeding Air From Brake Circuit
Testing Wear Of Parking Brake Disc
Manual Release Method For Parking Brake
Testing And Adjusting Accumulator Charge Pressure
Testing And Adjusting PPC Oil Pressure
Testing And Adjusting Work Equipment Hydraulic Pressure
Testing And Adjusting Bucket Positioner
Testing And Adjusting Lift Arm Kick-Out
Checking Proximity Switch Actuation Pilot Lamp
Adjusting Machine Monitor
Testing And Adjusting Load Meter
Bleeding Air
Releasing Remaining Pressure In Hydraulic Circuit
Releasing Remaining Pressure In Travel Damper Circuit
Handling Controller High-Voltage Circuit
-TROUBLESHOOTING
Points To Remember When Troubleshooting
Sequence Of Events In Troubleshooting
Precautions When Carrying Out Maintenance
Checks Before Troubleshooting
Equipment For Troubleshooting Electrical System
Special Functions Of Machine Monitor
Flow Of Modes And Functions
Categories, Procedure, And Method Of Using Troubleshooting Charts
Connection Table For Connector Pin Numbers
Troubleshooting Of Engine Control System (ENG Mode)
Troubleshooting Of Transmission Control System (TM Mode)
Troubleshooting Of Work Equipment Control System (Work Mode)
Troubleshooting Of Monitor System (MON Mode)
Troubleshooting Of Hydraulic, Mechanical System (H Mode)
Troubleshooting Of Electrical System (E Mode)
-DISASSEMBLY AND ASSEMBLY
Precautions When Carrying Out Operation
Fuel Supply Pump Assembly
Nozzle Holder Assembly
Nozzle Tip
Cylinder Head Assembly
Radiator Assembly
Air Aftercooler Assembly
Cooling Fan Drive Motor
Engine Assembly
Steering, Switch Pump, Cooling Fan Drive Pump Assembly
Torque Converter Charge, Work Equipment And PPC Pump Assembly
Torque Converter, Transmission Assembly
Torque Converter Assembly (Standard Specifications)
Torque Converter Assembly (Lock-Up Specifications)
Transmission Assembly
Schematics Of Special Tools
Transmission Clutch Pack Assembly
Parking Brake Assembly
Schematic Drawing Of Special Tools
Front Axle Assembly
Rear Axle Assembly
Axle Housing Assembly
Schematic Drawing Of Special Tools
Differential Assembly
Schematic Drawing Of Special Tools
Center Hinge Pin
Steering Valve Assembly
Travel Damper Assembly
Parking Brake Disc
Schematic Drawing Of Special Tools
Hydraulic Tank
Work Equipment Valve Assembly
Hydraulic Cylinder Assembly (Steering, Lift, And Bucket Cylinder Assemblies)
Work Equipment Assembly
Counterweight
Fuel Tank Assembly
Cab Assembly
Cab, Floor Frame Assembly
Air Conditioner Unit Assembly
Air Conditioner Compressor Assembly
-APPENDIX
Work Equipment Hydraulic Circuit Diagram
Work Equipment Hydraulic Circuit Diagram (For Electric Work Equipment Lever)
Power Train Oil Circuit Diagram (Without Torque Converter Lockup Clutch)
Power Train Oil Circuit Diagram (With Torque Converter Lockup Clutch)
Brake Oil Circuit Diagram
Electric Circuit Diagram
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