For Komatsu D80A-12, D85A-12 Dozer, this reference brings together the listed repair manual material. Start with GENERAL and follow the relevant document section for the task.
What’s Covered Inside
GENERAL
Specification
General Instruction
Engine
Main Clutch
Transmission
Torque
Bevel Gears
Steering System
Final Drive
Control System
Under Carriage
Fuel Tank
Electrical System
Hydraulic System
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 DOZER D80A-12, D85A-12
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.
Match the D80A-12, D85A-12 application and the individual document details before using this repair manual. Refer to GENERAL within its stated document and equipment scope.












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