Overview
The Komatsu Galeo D51EX-22, D51PX-22 dozer 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, GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1, STRUCTURE, FUNCTION AND MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . 10-1 and STANDARD VALUE TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 Galeo D51EX-22, D51PX-22 Manual
Main sections and selected subjects identified in the source documentation:
- Manuals: Shop Manual
- GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
- STRUCTURE, FUNCTION AND MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . 10-1
- STANDARD VALUE TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
- TESTING AND ADJUSTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1
- TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-1
- DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-1
- 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.
- 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
- 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.
- OTHER
- This section has the foldout drawings for the machine.
- ASSEMBLY OF MAIN PISTON
- Install spool (17) to piston (16).
- Put O-ring to plug (13) and install plug (13) to piston (16).
- Put O-ring to piston assembly (16) and install piston assembly (16) to end cover.
- Install pin (15) and install it with screw (14).
- Check the installed direction of pin (15).
- Check dimension (L6) to confirm that screw (14) is installed in the hole of pin (15).
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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