Overview
The Komatsu PC228US-2, PC228USLC-1 and PC228USLC-2 excavator repair service manual provides reference material for the documented equipment. The source listing identifies the included manuals and supporting documents associated with the covered models.
The supplied source lists technical sections covering the systems shown in the outline below. This preserves the original source headings without claiming a separately verified full chapter index.
Table of Contents
Komatsu PC228US-2, PC228USLC-1 and PC228USLC-2 Manual
Main technical headings listed by the source:
- 01 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
- 10 STRUCTURE AND FUNCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
- 20 TESTING, ADJUSTING AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
- 30 DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1
- 90 OTHER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-1
- STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
- Removal of spool
- Remove plug (324) from rear flange (301)
- Remove O-ring (336) from plug (324)
- Loosen the plug when the motor is on the turning work table for the ease of work
- Do not reuse removed O-ring (336)
- Necessary tools
- • Socket wrench
- • Wrench adapter, socket of size 41 2) Remove 2 springs (328), 2 stoppers (325), and spool (323) from rear flange (301)
- Take care not to damage the periphery of spool (323) and sliding surface of rear flange (301)
- Slant rear flange (301) with either plug port down, and spool (323) slides down
- Hold the end of the spool and take it out
Model and Service Applicability
Confirm the applicable configuration and follow the procedures, precautions and specifications in the original publication. The source listing is not a substitute for the document itself.










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