Komatsu D80A-12 / D85A-12 Bulldozer Shop Manual

This manual details service procedures for the Komatsu D80A-12 and D85A-12 bulldozers. It provides comprehensive information on all major components and systems for maintenance and repair. PN 06-76 (03) 03001.

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Document Details

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Document Number / Seller:
30623 / Richard Peterson
File Size:
43.83 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Bulldozer
Last updated / verified
Aug 26, 2025

Models Covered & Key Technical Specifications

Unified Service Parts Manual: Bulldozer Manual for DIY repairs: Komatsu D80A-12/D85A-12 Standards-Vault Komatsu Limited Komatsu D80A-12 / Komatsu D85A-12 (06-76 (03) 03001) | Komatsu Limited Series Section.

  • Measured Gap Specs: For optimal performance, 0.05 mm establishes the minimum clearance Sequences.
  • Fundamental Assembly Gap: For proper function, 0.10 mm limits the maximum allowable clearance Baseline.
  • Baseline Amperage Specs: The system requires 0.30 mm -- signifies the necessary gap for smooth operation Requirements.
  • Integral Assembly Gap: The control valve requires 0.05 mm for standard operation Threshold.
  • Operational Amperage Specs: Maximum throughput reaches 0.10 mm Parameters.
  • Critical Amperage Specs: The steering system is measured at 0.30 mm Configuration.

Professional Workshop Service Manual & Technical Specifications

Unified Service Parts Manual: Bulldozer Manual for DIY repairs: Komatsu D80A-12/D85A-12 Standards-Vault

Design-Core: Komatsu D80A-12 / D85A-12 (06-76 (03) 03001) // Validation-Data: Komatsu Limited / Bulldozer Logic // Design-Core: Complete service and repair procedures.

Specification Parameters Calibration-Standards
Manual Type Shop Manual Maintenance Guide
Brand Komatsu Limited Komatsu
Models Covered D80A-12, D85A-12 Standard, LGP, Extra-Large
Serial Numbers 10001 and up All variants covered
Language English US English
File Size 43.83 MB Downloadable

Outlining the operational framework across various systems and procedures, this manual serves as a crucial reference for maintaining and repairing your Komatsu D80A-12 or D85A-12 bulldozer. It provides in-depth information on all major components, from the engine and power train to the steering system and torque converter. The document includes detailed diagrams and step-by-step instructions designed for efficient maintenance and repair operations.

Inspection guidelines are provided for all major systems including the engine, transmission, and hydraulic system.

Alignment specifications are included for critical components such as the bevel gears and steering clutches.

Reference data is included for component identification and part number lookups within the Komatsu D80A-12 and D85A-12 models.

This manual covers the complete disassembly and reassembly of the torque converter, transmission, and final drive units.

Diagnostic procedures are covered for troubleshooting common issues related to the hydraulic and electrical systems.

This manual documents torque specifications for critical components to ensure proper mating surface contact and secure assembly. For comprehensive coverage, refer to the detailed sections on specific systems and procedures.

FAQ

Calculate the **precise** pressure specifications for the hydraulic system. keyboard_arrow_down

20 kg/cm² is the specified pressure for the main hydraulic system, as detailed on page 07-06.

What values are required for **proper** assembly sequence of the torque converter? keyboard_arrow_down

3.0 kg/cm² (43 PSI) and 7.5 kg/cm² (107 PSI) are the specified pressures for the torque converter assembly, detailed on page 06-03.

Assess the **standard** service interval parameters for the engine. keyboard_arrow_down

1850 RPM is the rated engine speed, and the fuel consumption ratio is 185 g (0.41 lb)/HP-h, as outlined on page 01-02.

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Reviews (2)

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The shop manual for the Komatsu D80A-12 and D85A-12 is incredibly detailed. I had a smooth download experience, and the support team was quick to respond to my questions. Highly recommend!
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This manual covers everything you need to know for servicing the bulldozer. The download process was seamless, and the customer service was very helpful. Definitely worth the price!