Overview
The Komatsu WA800-3, WA800-3E0 wheel loader repair service manual provides a technical reference for the covered equipment. Its purpose is to help locate information relevant to inspection, troubleshooting, servicing and repair, as applicable to the supplied publication.
The documented contents outline identifies 60001 and up, 70001 and up (sen02034-09), manuals: shop manual, 01 general and 10 structure and function. The table below lists selected source-supported subjects; consult the publication for exact service procedures and specifications.
Important Information: Confirm the applicable serial-number or production range in the supplied documentation before selecting a procedure.
Table of Contents
Komatsu WA800-3, WA800-3E0 Manual
Main sections and selected subjects identified in the source documentation:
- 60001 and up, 70001 and up (SEN02034-09)
- Manuals: Shop Manual
- 01 GENERAL
- 10 STRUCTURE AND FUNCTION
- 20 TESTING AND ADJUSTING
- 30 DISASSEMBLY AND ASSEMBLY
- 40 MAINTENANCE STANDARD
- 90 OTHERS
- Manual Extract
- Failure code [56] (Disconnection or short circuit with chassis ground in caution buzzer relay system) is displayed
- Before carrying out troubleshooting, check that all the related connectors are properly inserted.
- When the joystick steering lever is not being used, leave it at the neutral position.
- Always connect any disconnected connectors before going on to the next step.
- A-1 Related electrical circuit diagram
Serial-Number Applicability
The covered production ranges or serial groups may affect the applicable procedures. Check the identification details on the machine against the source documentation.










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