Overview
The Komatsu PC75UU-2 excavator 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 PC75UU-2 Manual
Main sections and selected subjects identified in the source documentation:
- Manuals: Shop Manual
- 01 GENERAL
- 10 STRUCTURE AND FUNCTION
- 20 TESTING AND ADJUSTING
- 30 DISASSEMBLY AND ASSEMBLY
- 40 MAINTENANCE STANDARD
- GENERAL
- STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
- TESTING, ADJUSTING AND TROUBLESHOOTING
- DISASSEMBLY AND ASSEMBLY KOMATSU Excavator PC75UU-2
- When raising heavy components, use a hoist or crane. Check that the wire rope, chains and hooks are free from damage.
- Manual Extract
- Measure the blow-by pressure under the following conditions.
- Coolant temperature: Within operating range Hydraulic oil temperature: 45 – 55 C 1. Remove cylinder head cover (1).
- Install plug E2 to breather tube (2).
- Install the cylinder head cover, then install blow by pressure gauge E1 to the oil filler port.
- When measuring in the field, a similar value can be obtained at stall speed.
- If it is possible to check at rated output or stall speed, measure at high idling.
- * After completing the measurement, always be sure to remove plug E2.
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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