Komatsu D150A-1 & D155A-1 Dozer Shop Repair Manual PDF

Serial Number:
D150A-1: 8408 and up
D155A-1: 15001 and up
Manuals: Shop Manual
GENERAL…………………………………………………………………………………… 01-1
ENGINE
12 TESTING AND ADJUSTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
13 DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
POWER TRAIN
21 STRUCTURE AND FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-1
22 TESTING AND ADJUSTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
23 DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-1
24 MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1
UNDERCARRIAGE
31 STRUCTURE AND FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-1
34 Disassembly AND Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-1
MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-1
HYDRAULIC SYSTEM
61 STRUCTURE AND FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61-1
62 TESTING AND ADJUSTING . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 62-1
63 Disassembly AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63-1
64 MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73-1
WORK EQUIPMENT
71 STRUCTURE AND FUNCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71-1
73 DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73-1
74 MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74-1
OTHERS
90 ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-1
STRUCTURE AND FUNCTION
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.
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 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.
MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.