Overview
The Komatsu WB91R-2, WB93R-2 backhoe 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 WB91R-2, WB93R-2, WB91R-2 and WB93R-2. 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 WB91R-2, WB93R-2 Manual
Main sections and selected subjects identified in the source documentation:
- WB91R-2: 91F20250 and up (WEBM000405)
- WB93R-2: 93F25184 and up (WEBM000405)
- WB91R-2: 91F20145 and up (WEBM000404)
- WB93R-2: 93F23453 and up (WEBM000404)
- WB91R-2: 91F20250 and up (WEAM002304)
- WB93R-2: 93F25184 and up (WEAM002304)
- Manuals: Shop Manual, Operation and Maintenance Manual
- Index and foreword
- Specification
- Structure, functions and maintenance standard
- Standard value table
- Testing and adjusting
- Troubleshooting
- Disassembly and assembly
- Maintenance Standard
- Appendix
- Diagrams and drawings
- Index
- Composition of Komatsu WB91R-2, WB93R-2 shop manual
- This section contains the index, foreword, safety and basic information.
- This section explains the specifications of the machine.
- Structure and function
- This section explains the structure and function of each component. It serves not only to give an understanding
- for the structure of each component, but also serves as reference material for troubleshooting.
- This section explains the standard values for new machine and judgement criteria for testing, adjusting,
- and troubleshooting. This standard value table is used to check the standard values in testing and adjusting
- and to judge parts in troubleshooting.
- This section explains measuring tools and measuring methods for testing and adjusting, as well as the
- adjusting method of each part. The standard values and judgment criteria for "Testing and adjusting" are
- explained in "Standard value table".
- This section explains how to find out failed parts and how to repair them. The troubleshooting is divided
- by failure modes. The "S mode" of the troubleshooting related to the engine may be also explained in the
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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