Overview
The Komatsu PC300LC-7E0, PC300HD-7E0 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1, 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . 10-1 and 20 TESTING, ADJUSTING AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1. 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 PC300LC-7E0, PC300HD-7E0 Manual
Main sections and selected subjects identified in the source documentation:
- Manuals: Shop Manual
- 01 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
- 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . 10-1
- 20 TESTING, ADJUSTING AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
- 30 DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1
- 90 OTHER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-1
- Composition of shop manual
- ease of understanding, the manual is divided into the following sections.
- FOREWORD
- This section explains the safety and basic information.
- GENERAL
- This section explains the specifications of the machine for the Excavator.
- STRUCTURE AND FUNCTION, MAINTENANCE STANDARD
- This section explains the structure, function, and maintenance standard values of each component.
- TESTING AND ADJUSTING
- Standard value table
- Troubleshooting
- DISASSEMBLY AND ASSEMBLY For Excavator
- OTHERS (chassis volume)/Repair and replacement of parts (engine volume)
- Chassis volume
- This section gives hydraulic circuit diagrams and electrical circuit diagrams.
- Engine volume
- This section explains the method of reproducing, repairing, and replacing parts.
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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