Overview
The Komatsu WA1200-3 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, 01 GENERAL , 10 STRUCTURE AND FUNCTION and 20 TESTING AND ADJUSTING. 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 WA1200-3 Manual
Main sections and selected subjects identified in the source documentation:
- Manuals: Shop Manual and Field Instructions Manual
- 01 GENERAL
- 10 STRUCTURE AND FUNCTION
- 20 TESTING AND ADJUSTING
- 30 DISASSEMBLY AND ASSEMBLY
- 40 MAINTENANCE STANDARD
- 90 OTHERS
- Removal and installation of switching pump assembly
- Removal
- Drain the hydraulic oil.
- Hydraulic oil: Approx. 1,125
- Open the upper step cover.
- Disconnect hoses (1) and (2).
- Disconnect hoses (3) and (4).
- Remove U-bolt (5) and disconnect suction tube (6).
- Disconnect hose (7).
- Disconnect hoses (8) and (9).
- Sling switching pump assembly (10), remove its mounting bolts, and lift it off.
- [*1] 4 Switching pump assembly: 190 kg
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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