2003+ Komatsu S6D125-2, D65E-12, D75S-5, SA6D125-2, D85A-21, D85P-21, WA470-3, PC400-6 Diesel Engine Shop Manual
Komatsu Models Covered & Key Technical Specifications
Models: Komatsu 6D125-2, S6D125-2, SA6D125-2, SAA6D125-2
Sub-models / Variants: D53A-17, D53P-17, D58E-1, D58P-1, D65E-12, D65EX-12, D65P-12, D65PX-12, D60P-12, D70LE-12, D75S-5, D85A-21, D85P-21, D85C-21, D85E-21, D85E-SS-2, D85E-SS-2A, D87E-2, D87P-2, WA470-3, PC400-6, PC400LC-6, PC450-6, PC450LC-6, PC400AC-6, HD255-5, LW250-5, CS210-1, FD250-2, FD400-2, FD430-2, J6D125-G1-2, BR500JG-1, BR550JG-1, EG220BS-2, EG300BS-5, DCA-220SSK, DCA-300SK, DCA-300SPK, SAA6D125-P400
Model Years: 2003–2005
Technical Data:
- Engine Configuration: 6-cylinder, 4-stroke diesel
- Bore x Stroke: 125 mm x 150 mm
- Total Piston Displacement: 11.04 liters (11,040 cc)
- Flywheel Horsepower: 95.6 kW – 257 kW (depending on model variant)
- Maximum Torque: 613 Nm – 1,210 Nm
- Lubricating Oil Capacity: 32–65 liters (refill volume varies by engine model)
- Coolant System Capacity: 32–71 liters (refill volume varies by engine model)
- Electrical System: 24V, 35A or 50A alternator; 24V, 7.5kW or 11kW starting motor
Komatsu Manual Features & Content Preview
- Covers the 2003+ Komatsu 125-2 series diesel engines, including the 6D125-2, S6D125-2, SA6D125-2, and SAA6D125-2 configurations.
- Official Komatsu publication P/N SEBM006410 (printed May 2003), delivering 399 pages of factory-level technical documentation.
- Features 47 high-precision assembly diagrams mapping side, front, rear, and top views, alongside 18 performance curves.
- Provides comprehensive torque-specification tables for metric bolts, flared nuts, and O-ring boss piping joints.
- Outlines foundational repair reference data for over 40 specific Komatsu machine models, ranging from mobile crushers to heavy-duty generators.
Engine Service and Specifications
This factory manual delivers deep technical documentation for the Komatsu 125-2 diesel engine family. The content is deliberately organized to streamline shop diagnostics. It starts with distinct classification codes for electrical wiring, standard machine specifications, and general assembly drawings. For mechanics on the floor, the manual highlights standard tightening torques essential for precision component assembly. Please note that working on industrial diesel powerplants requires specialized technical training. Always consult a certified technician before performing service or maintenance on heavy equipment to ensure safety and compliance.
Maintenance and Technical Data Preview
The reference material features detailed performance curves mapping flywheel horsepower and torque outputs directly across the operating RPM range. Need exact fluid specs? The guide outlines vital data, including lubrication capacities and coolant volumes specific to machines like the D65E-12, WA470-3, and PC400-6. You will also find strict maintenance standards to evaluate major components accurately. This covers standard inspection values for turbochargers, cylinder heads, and fuel injection pumps. Ultimately, this text provides the exact tolerances and reference values needed to support professional repair facility operations and industrial equipment overhauls.
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