Overview
The Komatsu WA120L-3, WA120L-3MC 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, Contents, General and Structure and Functions. 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 WA120L-3, WA120L-3MC Manual
Main sections and selected subjects identified in the source documentation:
- Manuals: Shop Manual
- Contents
- General
- Structure and Functions
- Testing and Adjusting
- Disassembly and Assembly
- Maintenance Standard
- STRUCTURE AND FUNCTION
- In addition, this section may contain hydraulic circuit diagrams, electric circuit diagrams, and maintenance standards.
- Troubleshooting charts correlating "Problems" with "Causes" are also included in this section.
- This section explains the procedures for removing, installing, disassembling and assembling each component, as well as precautions for them.
- This section gives the judgment standards for inspection of disassembled parts.
- The contents of this section may be described in STRUCTURE AND FUNCTION.
- OTHERS
- This section mainly gives hydraulic circuit diagrams and electric circuit diagrams.
- In addition, this section may give the specifications of attachments and options together
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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