Komatsu WA470-6, WA480-6 Wheel Loader Service Manual

Name: Komatsu WA470-6, WA480-6 Wheel Loader Service Manual
Brand: MidWestTech
SKU: CEBM023001
Price: 199.53 USD
Availability: InStock

1,901 pages · Publication CEBM023001

$199.53

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Models: WA470-6, WA480-6
Serial coverage: WA470-6 A46001 and up, WA480-6 A48001 and up
Manual type: Service Manual
Pages: 1,901
Publication: CEBM023001
Condition: Brand new

Komatsu WA470-6, WA480-6 Wheel Loader Service Manual, publication CEBM023001

What's inside

From the manual's own table of contents: 3 sections, 229 entries. See sample pages (PDF, 1512 KB)

Search the contents

FOREWORD120 topics

12CONTENTS
GENERAL
STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
STANDARD VALUE TABLES
TESTING AND ADJUSTING
TROUBLESHOOTING
DISASSEMBLY AND ASSEMBLY
AIR CONDITIONER
DIAGRAMS AND SCHEMATICS
Orbit-roll Valve
Stop Valve
Steering Relief Valve
Steering Cylinder
Emergency steering motor
Emergency Steering Pump
Joystick Steering Lever Linkage
Electrical Steering Lever
Joystick EPC Valve
BRAKE SYSTEM
Brake Component Layout Drawing
Charge Valve
Brake Valve
Accumulator (for brake)
Slack Adjuster
Brake
Front Brake
Rear 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
Hydraulic Component Layout Drawing
Work Equipment Control Lever Linkage
Multi-Function Mono-lever Type
Hydraulic Tank
Breather
Power Train Pump
Work Equipment Pump
Sectional View
LS Valve
PC Valve
PC-EPC Valve
Work Equipment Control Valve
CLSS
Basic principle
Function and Operation of Each Valve
Shuttle valve in the pressure compensation valve
Supply of LS Pressure
LS Bypass Plug
ECSS Control Valve
Accumulator Charge Valve
PPC Valve
Work Equipment PPC Valve
Service PPC Valve (If equipped)
Accumulator (for PPC circuit)
Accumulator (for power train circuit)
Accumulator (for ECSS) (If equipped)
Work Equipment PPC Cut-off Solenoid Valve (If equipped)
WORK EQUIPMENT
Work Equipment Linkage
Bucket Positioner And Boom Kick-out
Work Equipment Cylinder
Lift Cylinder
Bucket Cylinder
CAB AND ITS ATTACHMENTS
Air Conditioner Piping Diagram
Refrigerant Circuit Diagram
Air Conditioner Unit
Blower and Intake Unit
Compressor
Condenser
Receiver
Air conditioner panel
ELECTRICAL SYSTEM
Machine Monitor System
System Circuit Diagram
Machine Monitor
Transmission Controller System
Transmission Controller Gear Shifting Control Function
Transmission Controller
Work Equipment Controller System
Work Equipment Controller
Electric Transmission Control
Combination Switch
Kickdown Switch and Hold Switch
Load Meter Cancel Switch and Load Meter Subtotal Switch
Multi-function Knob
Joystick Steering Knob
KOMTRAX System
KOMTRAX Terminal
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
Transmission Input Speed Sensor
Transmission Output Speed Sensor
Cooling Fan Speed Sensor
Torque Converter Oil Temperature Sensor
Hydraulic Oil Temperature Sensor
Transmission Oil Temperature Sensor
Brake Oil Temperature Sensor
Work Equipment Pump Oil Pressure Sensor
Steering Pump Oil Pressure Sensor
Lift Cylinder Head Oil Pressure Sensor (machines equipped with load meter)
Transmission Cut-off Oil Pressure Sensor
Coolant Level Sensor
Fuel Level Sensor
Air Cleaner Clogging Sensor (machine equipped with KOMTRAX)
Accelerator Pedal Sensor
Boom Kick-out Proximity Switch
Bucket Positioner Proximity Switch
Lift Arm Potentiometer (machines equipped with load meter)

TESTING AND ADJUSTING87 topics

POWER TRAIN OIL PRESSURE
Testing and Adjusting Power Train Oil Pressure
Measurement
Adjustment
FLUSHING TRANSMISSION SYSTEM
Torque Converter and Transmission Hydraulic Circuit
TRANSMISSION VALVE FAILS
Moving Machine When Transmission Valve Is Broken
AXLE DRIVE AND DRIVE SHAFTS
Check Axle Final Drive for Oil Leakage
Check Drive Shafts for Looseness, Play and Damage
STEERING SYSTEM
Steering Stop Valve
Testing
Adjusting
Steering Wheel
Steering Oil Pressure
Bleeding Air From Steering Circuit
HYDRAULIC FAN
Hydraulic Drive Fan
Hydraulic Fan Speed Sensor
Bleeding Air From Hydraulic Drive Fan Circuit
Brake Pedal
Brake Pedal Linkage
Brake Performance
Accumulator Charge Pressure
Wheel Brake Oil Pressure
Check Wear of Wheel Brake Disc
Bleed Air From Wheel Brake Circuit
Release Residual Pressure in Brake Accumulator Circuit
Parking Brake Performance
Test
Parking Brake Oil Pressure
Wear Of Parking Brake Disc
Manual Release for Parking Brake
Work Equipment Control Lever
Work Equipment PPC Oil Pressure
Measuring
Work Equipment Oil Pressure
Bleeding Air From Work Equipment Circuit
Releasing Residual Pressure in Work Equipment Circuit
ACCUMULATOR
Nitrogen Gas Accumulator Pressure of ECSS
Charging Accumulator
Brake Accumulator Nitrogen Gas Pressure
BUCKET POSITIONER
BOOM KICK-OUT
PROXIMITY SWITCH OPERATION PILOT LAMP
Diode Testing Procedure
Electrical System Troubleshooting
Preparation
How to Start KOMTRAX Terminal Operations
Station Opening Check in Machine Side
Application for the Start of Use
Indicator Lamps of KOMTRAX Terminal
With Machine Monitor
Special Functions of Machine Monitor (EMMS)
Normal functions and special functions of machine monitor
Functions and Flow of the Service Mode
Operator Mode
Service Meter/clock Display Function (1)
Load Meter Function (if equipped) (2)
Odometer Display Function (3)
Maintenance Monitoring Function (4)
Telephone Number Input Function (5)
Language Selection Function (6)
Monitor Brightness Adjustment Function (7)
Time Adjustment Function (8)
Travel Speed/Engine Speed Display Selecting Function (9)
Travel Speed/Engine Speed Display/Non-Display Selecting Function (10)
Action Code Display Function (11)
Failure Code Display Function (12)
Service Mode
Procedure For Switching To Service Mode And Screen Display (1)
Electrical System Fault History Display Function (ELECTRIC FAULT) (2)
Mechanical System Fault History Display Function (MACHINE FAULT) (3)
Real-Time Monitoring Function (REAL-TIME MONITOR) (4)
Engine Cylinder Cutout Function (CYLINDER CUT-OUT) (5)
No Injection Cranking Function (6)
Adjustment Function (TUNING) (7)
Maintenance Monitoring Function (8)
Operating Information Display Function (9)
OPTIONAL SELECT Function (10)
Machine Serial Number Input Function (11)
Machine Model Select Function (MACHINE) (12)
Initialize Function (13)
PM-CLINIC INSPECTION TABLE

DISASSEMBLY AND ASSEMBLY19 topics

Removal
Installation
Fuel Injector
Cylinder Head
Engine Front Oil Seal
Engine Rear Oil Seal
Fuel Tank
POWER TRAIN
Torque Converter And Transmission
Disassembly
Assembly
Torque Converter (Standard Specification)
Torque Converter (Lockup Specification)
Clutch Pack
Front Axle
Rear Axle
Axle Housing
Differential
Parking Brake Disc And Plate

Inside this manual

Real pages from this service manual (1,901 pages). Open the sample pages (PDF, 1511 KB)

Sample pages from the Komatsu WA470-6, WA480-6 Wheel Loader Service Manual: Specifications, Troubleshooting, Diagram, Foldout diagram

Specifications, page 369: STRUCTURE, FUNCTION AND
Troubleshooting, page 717: MODE CHART
Diagram, page 1,326: Possible causes
Foldout diagram, page 1,901: Connector List and Stereogram

This is a service manual

Here's how it compares to the other manual types.

This manual

Service manual

Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.

Operator's manual

Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.

Parts manual

Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.

Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.

What it's used for

Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.

Service shops and owner/operators who repair their own equipment

Identifying correct parts and seeing how assemblies come apart and go back together

Keeping equipment running with less downtime

Factory manual, 1,901 pages

Quantity one is the manual described above.

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Ships in 1 business day.

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Binder not included

Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.

Other editions and similar models

Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).