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: 1170
Number: VEBM920100 (august 2002)
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes
Model
Komatsu Wheel Loader
WA380-5H
SN H50051 And Up
Contents
-SAFETY
Safety Notice
Foreword
How To Read The Shop Manual
Hoisting Instructions
Method Of Disassembling, Connecting Push-Pull Type Coupler
Coating Materials
Standard Tightening Torque
Electric Wire Code
Conversion Table
Units
-GENERAL
General Assembly Drawing
Specifications
Weight Table
List Of Lubricant And Coolant
-STRUCTURE AND FUNCTION, MAINTENANCE STANDARD
Cooling System
Engine Mount, Transmission Mount
Powertrain
Powertrain 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)
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 Pilot Control Pumps
PPC Relief Valve
Travel Damper Valve (Op)
Work Equipment Control Valve
Work Equipment PPC Valve
EPC Solenoid Valve (Op)
Shut Off Valve (Op)
Attachment PPC Valve (Op)
Cooling Fan Motor
Cooling Fan Motor Drive Pump
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
Preheating Circuit
Engine Power Mode Selector Circuit
Parking Brake Circuit
Sensors
-TESTING AND ADJUSTING
Standard Value Table For Engine
Standard Value Table For Chassis
Measuring Engine Speed
Measuring Exhaust Color
Measuring Exhaust Temperature
Adjusting Valve Clearance
Measuring Compression Pressure
Measuring Blow-By Pressure
Measuring Engine Oil Pressure
Measuring Intake Air Pressure (Boost Pressure)
Testing And Adjusting Fuel Injection Timing
Adjusting Engine Speed Sensor
Bleeding Air From Fuel Circuit
Adjusting Engine Stop Solenoid
Adjusting Accelerator Pedal
Adjusting Transmission Speed Sensor
Testing And Adjusting Power Train Oil Pressure
Drawing Of Special Tool
Procedure For Flushing Torque Converter, Transmission Hydraulic Circuit
Procedure For Moving Machine When Transmission Valve Fails
Testing And Adjusting Steering Control
Testing And Adjusting Steering Oil Pressure
Testing Hydraulic Fan
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 Working Equipment 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
-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
Categories, Procedure, And Method Of Using Troubleshooting Charts
Connection Table For Connector Pin Numbers
Troubleshooting Of Transmission Control System (TM Mode)
Troubleshooting Of Work Equipment Control System (WRK Mode)
Troubleshooting Of Monitor Panel System (MON Mode)
Troubleshooting Of Hydraulic, Mechanical System (H Mode)
Troubleshooting Of Electrical System (E Mode)
-DISASSEMBLY AND ASSEMBLY
Precautions When Carrying Out Operation
Engine
Cylinder Head
Radiator And Fan Motor
Aftercooler
Fuel Injection Pump
Nozzle Holder
Fan And Fan Motor
Fuel Tank
Parking Brake Disc Plate
Torque Converter And Transmission
Transmission
Transmission Clutch Pack
Parking Brake
Special Tool Simplified Drawings
Torque Converter (Standard Specification)
Torque Converter (Lock-Up Specification)
Rear Axle
Front Axle
Axle Housing
Special Tool Simplified Drawings
Differential
Special Tool Illustrations
Center Hinge Pin
Cab
Cab And Floor Frame
Transmission, Work Equipment, And PPC Pump
Steering, Switching, And Fan Pump
Steering Demand Valve
Travel Dumper Valve
Work Equipment Valve
Hydraulic Cylinder (Steering, Lift, And Bucket Cylinder )
Hydraulic Tank
Work Equipment
Counter Weight
Air Conditioner Unit
Air Conditioner Compressor
-OTHERS
Power Train Oil Circuit Diagram (Without Torque Converter Lockup Clutch)
Power Train Oil Circuit Diagram (With Torque Converter Lockup Clutch)
Brake Oil Circuit Diagram
Work Equipment Hydraulic Circuit Diagram
Work Equipment Hydraulic Circuit Diagram (For Electric Work Equipment Lever)
Electric Circuit Diagram
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