Komatsu HD325-6 (2WD), HD325-6W (4WD) & HD405-6 Off-Highway Truck 2001 Shop Manual (P/N SEBM015108)
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Komatsu Models Covered & Key Technical Specifications
Models: HD325-6 (2WD), HD325-6W (4WD), HD405-6
Model Years: 2001–present
Serial Numbers: HD325-6 (2WD): 5680 and up, HD325-6W (4WD): 5706 and up, HD405-6: 1055 and up
Technical Data:
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Engine: Komatsu SAA6D140E-2 or SAA6D140E-3, 4-cycle water-cooled in-line 6-cylinder
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Piston displacement: 15,230 cc
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Flywheel horsepower (Net): 364 kW/2,000 rpm {488 HP/2,000 rpm}
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Max. torque: 2,167 Nm/1,400 rpm {221 kgm/1,400 rpm}
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Transmission type: TCA-48-10A 3-element, 1-stage, 2-phase torque converter with TORQFLOW planetary gear
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Steering: Fully hydrostatic steering system
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Brake system: Air over hydraulic caliper disc front brakes, oil-cooled multiple-disc rear brakes/retarder
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Suspension: Independent front suspension (Mac Pherson type), full floating rear axle, hydropneumatic
Komatsu Manual Features & Content Preview
- Supported Models: Covers 2001-up Komatsu HD325-6 (2WD), HD325-6W (4WD), and HD405-6 off-highway dump trucks (Serial numbers 5680+, 5706+, and 1055+ respectively).
- Comprehensive Coverage: 1,300+ pages of factory specifications, operational data, and maintenance schematics (Official Publication SEBM015108, Feb 2001).
- Engine Variants: Provides the technical basis for chassis equipped with both the SAA6D140E-2 and SAA6D140E-3 engine series.
Component Breakdown and Workshop Value
This factory shop manual eliminates the guesswork when dealing with heavy-duty power trains. Instead of hunting for correct tolerances, technicians get direct access to the exact engineering specifications and structural layouts used by dealership mechanics. The documentation breaks down the TCA-48-10A torque converter, planetary gear transmission, and the complex steering geometry.
You will also find highly detailed cross-sectional views for every major assembly, including the engine flywheel, final drives, and the hydropneumatic suspension system. Having these high-resolution schematics ready as an instant download drastically cuts down diagnostic time on the shop floor. Standard lubrication schedules and tightening torque tables for various bolt diameters and flared nuts are clearly organized for quick reference.
Specification Highlights and Safety Reference
Deep technical reference data is structured for fast retrieval. Need to verify transmission cooling system pressures? The manual lists it directly at 472 l/mm at 2,100 rpm for the gear pump. It also details core engine performance metrics, such as the 15,230 cc displacement and maximum torque of 2,167 Nm at 1,400 rpm.
The factory workshop documentation includes a full suite of hydraulic circuit diagrams for the torque converter and brake cooling, alongside comprehensive electrical wire code tables. When evaluating the suspension, the text outlines how the variable shaft mechanism manages damping force across Medium, Hard, and Soft settings. Because heavy equipment maintenance involves significant hazards, always cross-reference these factory specifications before starting any hands-on work to ensure proper structural integrity and safe operation.
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