Komatsu Wheel Loader WA320-7 Japan sn:80001 and up Workshop Service Manual
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Description
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Illustrated Factory Workshop Service Manual for Komatsu Wheel Loader WA320 is a comprehensive source of repair information for professional mechanics and DIY enthusiasts. It contains high-quality images, circuit diagrams, and detailed instructions to assist with truck operation, maintenance, and repair. The manual is printable, searchable, and includes navigation bookmarks for easy access.
Covered models: WA320-7 Japan sn:80001 and up
Format: 2052 Pages
Language: English
00 Index and foreword
01 Specification
Specifications
Specification drawing
Specifications
Weight table
Table of fuel, coolant, and lubricants
10 Structure and function
Table of contents
Engine and cooling system
Power train
Steering system
Brake system
Undercarriage and frame
Hydraulic system
Work equipment
Cab and its attachments
Electrical system
20 Standard value tables
Table of contents
Standard service value table
Standard value table for engine
Standard value table for machine
Standard value table for electrical system
30 Testing and adjusting
Table of contents
Related information on testing and adjusting
Engine and cooling system
Power train
Steering system
Brake system
Hydraulic system
Work equipment
Electrical system
Pm clinic
40 Troubleshooting
Table of contents
Related information on troubleshooting
Troubleshooting points
Sequence of events in troubleshooting
Checks before troubleshooting
Inspection procedure before troubleshooting
Preparation for troubleshooting of electrical system
Classification and procedures for troubleshooting
Symptom and troubleshooting numbers
Information in troubleshooting table
Procedure for troubleshooting wiring harness of pressure sensor system for open circuit
Connector list and layout
Fuse location table
Precautions for KDPF (KCSF and KDOC) Cleaning and Replacement
Precautions when performing troubleshooting of machine monitor
Processing procedure of harness checker for troubleshooting of machine monitor LCD unit
Failure codes 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)
50 Disassembly and assembly
Table of contents
Related information on disassembly and assembly
Engine and cooling system
Power train
Undercarriage and frame
Hydraulic system
Work equipment
Cab and its attachments
Electrical system
60 Maintenance standard
Table of contents
Engine and cooling system
Power train
Steering system
Brake system
Undercarriage and frame
Hydraulic system
Work equipment
Cab and its attachments
Electrical system
80 Appendix
Table of contents
Air conditioner components
Precautions for refrigerant
Circuit diagram and arrangement of connector pins
System diagram
Parts and connectors layout
Testing with self-diagnosis function
Troubleshooting chart 1
Troubleshooting chart 2
Failure code list related to air conditioner
Troubleshooting for power supply and CAN communication system (Air conditioner does not operate)
Troubleshooting for compressor and refrigerant system (Air is not cooled)
Troubleshooting for blower motor system (No air comes out or air flow is abnormal)
Troubleshooting for FRESH/RECIRC air changeover
Troubleshooting with gauge pressure
Connection of service tool
Precautions for disconnecting and connecting hoses and tubes in air conditioner circuit
