Overview
The Komatsu HM400-1 dump truck 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 supplied contents outline identifies Manuals, 00 Index and foreword, 01 Specification and 10 Structure, function and maintenance standard. The table below follows the provided section names and selected topics; consult the manual for the exact 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 HM400-1 Manual
Main sections and selected subjects identified in the source documentation:
- Manuals: Service Manual, Operation and Maintenance Manual and Field Assembly
- 00 Index and foreword
- 01 Specification
- 10 Structure, function and maintenance standard
- 20 Standard value table
- 30 Testing and adjusting
- 40 Troubleshooting
- 50 Disassembly and assembly
- 90 Diagrams and drawings
- GENERAL
- STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
- TESTING, ADJUSTING AND TROUBLESHOOTING
- DISASSEMBLY AND ASSEMBLY KOMATSU Dump Truck HM400-1
- Braking mode
- Coasting mode
- The shift-down point and the shift-up point become close to each other to decrease the occurrences of unnecessarily shifting transmission.
- Power mode
- Economy mode
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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