Overview
The Komatsu PC58UU-3 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, FUNCTION AND MAINTENANCE and 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 PC58UU-3 Manual
Main sections and selected subjects identified in the source documentation:
- Manuals: Shop Manual
- 01 GENERAL
- 10 STRUCTURE, FUNCTION AND MAINTENANCE
- STANDARD
- 20 TESTING AND ADJUSTING
- 30 DISASSEMBLY AND ASSEMBLY
- 90 OTHERS
- GENERAL
- STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
- TESTING, ADJUSTING AND TROUBLESHOOTING
- DISASSEMBLY AND ASSEMBLY KOMATSU Excavator PC58UU-3
- When raising heavy components, use a hoist or crane. Check that the wire rope, chains and hooks are free from damage.
- INSTALLATION OF ASSEMBLY SWING MOTOR AND SWING MACHINERY
- Lift the swing motor and machinery assembly (7) and place it in the specified position.
- Adjust the position of the dowel pin by using guide bolt c. Attach 8 bolts and tighten them to the specified torque.
- After removing the swing motor, try to prevent foreign matter from entering the motor.
- Connect the five hoses including the hoses (4) from the swing motor (3).
- Attach the covers (2) and (1) behind the boom foot.
- Start the engine to supply oil to the swing motor. During low idling of the engine, repeatedly turn the machine for several seconds.
- Bring the work equipment to the oil level measuring position and add oil up to the specified level.
- Bring the work equipment to the minimum turning position and stop the
- engine. Loosen and tighten the hydraulic tank cap to release any existing pressure so that pressure, with a full tank, will be applied.
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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