Overview
The Komatsu WB146PS-5 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 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 WB146PS-5 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
- GENERAL
- This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and
- lubricant specification charts.
- STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
- This section explains the structure and function of each component. It serves not only to give an understanding of the
- structure, but also serves as reference material for troubleshooting. In addition, this section gives the judgement standards
- when inspecting disassembled parts.
- STANDARD VALUE TABLE
- 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.
- TESTING AND ADJUSTING
- This section explains checks to be made before and after performing repairs, as well as adjustments to be made at
- completion of the checks and repairs.
- TROUBLESHOOTING
- Troubleshooting charts correlating Problems to Causes are also included in this section.
- DISASSEMBLY AND ASSEMBLY FOR KOMATSU WB146PS-5
- This section explains the order to be followed when removing, installing, disassembling or assembling each component,
- as well as precautions to be taken for these operations.
- DIAGRAMS AND SCHEMATICS
- This section has the foldout drawings for the machine.
- BACKHOE SWING FRAME WB146PS-5
- Do this procedure on a flat, level and smooth surface.
- REMOVAL
- Remove the working equipment.
- Remove bolts (1) and remove pins (2) that connect the swing cylinders (3).
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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