Overview
The Komatsu WA250-1, WA250-1LC 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 supplied contents outline identifies Manuals, Contents, Engine and Power Train. 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 WA250-1, WA250-1LC Manual
Main sections and selected subjects identified in the source documentation:
- Manuals: Shop Manual
- Contents
- Engine
- Power Train
- Steering System
- Brake and Air System
- Work Equipment
- Electric and Electronic System
- Others
- Manual Extract
- PREVENTING RECURRENCE OF TROUBLE
- Regarding the method of checking and adjusting each part or piece of equipment, refer to "Testing and adjusting"
- in the Shop Manual.
- HYDRAULIC EQUIPMENT
- Oil checks
- The fundamental cause of almost all faults occurring in hydraulic equipment is the inclusion of water, air or other foreign matter in the oil.
- Accordingly, it is necessary to check the oil to see whether or not it contains any of the above substances, and then take appropriate action.
- 1) Oil checks
- Check for water ingress
- Check the oil for possible water ingress by means o f a diesel engine oil checker or a hot plate.
- Check the degree of contamination by means of a contamination checker.
- Viscosity check
- Check the viscosity of the oil using a viscometer in order to confirm whether or not the oil is satisfactory.
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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