Komatsu D68E-1 / D68E-1A / D68P-1A / D68P-1 / B1001 / 45590 Workshop Manual
Comprehensive repair and diagnostic procedures for Komatsu D68E-1, D68E-1A, D68P-1A, D68P-1, B1001, and 45590 bulldozers. Includes detailed diagrams and specifications for all major systems. Part number: SEBMU1440102.
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Sample pages from the Komatsu D68E-1 / D68E-1A / D68P-1A / D68P-1 / B1001 / 45590 Workshop Manual manual
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Komatsu Models Covered & Key Technical Specifications
Models: Komatsu D68E-1, Komatsu D68E-1A, Komatsu D68P-1, Komatsu D68P-1A
Sub-models / Variants: Brazilian (D68E-1A, D68P-1A)
Build Years: Not specified
Serial Numbers: D68E-1 (1001 and up), D68E-1A (B1001 and up), D68P-1 (45590 and up), D68P-1A (B1001 and up)
Technical Data:
- Engine speed (max, no load): 2,050–2,150 rpm
- Engine speed (min, no load): 600–630 rpm
- Valve clearance (intake/exhaust): 0.33 mm / 0.71 mm (cold)
- Compression pressure (min): 34 kg/cm²
- Engine oil pan capacity (refill): 26 liters
- Engine assembly weight: 1,500 kg
- Radiator/torque converter cooler assembly weight: 180 kg
Komatsu Manual Features & Content Preview
Inside the Komatsu D68E-1 / D68P-1 Workshop Manual
- Covers the Komatsu D68E-1, D68E-1A, D68P-1, and D68P-1A Bulldozer series with serial numbers starting from 1001, B1001, and 45590
- Official Komatsu publication SEBMU1440102, covering the 6D125-1 engine platform
- Includes 64 detailed exploded-view diagrams, 9 hydraulic control schematics, and 2 complete electrical wire coding tables
- File delivered as a direct download the moment payment clears
- Indexed PDF search covers every chapter and appendix
- Accessible from your device as soon as the order is placed
- Suitable for printing individual sections for shop-floor use
- This 409-page manual serves as the primary technical reference for the D68-1 build, documenting engine, drivetrain, undercarriage, and hydraulics specifications for the Brazilian and standard configuration units
Component and System Documentation
The Komatsu D68E-1 / D68P-1 workshop manual details the structural design and functional operation of the 6D125-1 engine assembly, TORQFLOW power train, and heavy-duty undercarriage components. Sections cover hydraulic circuitry, including the modulation of torque converter relief valves, steering control valves, and transmission lubrication standards. Maintenance documentation includes specific component weights for safe hoisting, fluid capacity charts for engine oil and transmission systems, and standardized torque specifications for bolting configurations.
Technical Specifications and System Reference
Engine performance parameters are clearly defined, listing max-load speeds of 2,050–2,150 rpm and compression pressure thresholds of 34 kg/cm² for diagnostic comparison. The manual provides valve clearance specs for cold intake (0.33 mm) and exhaust (0.71 mm) setups. Transmission hydraulic circuit pressures are regulated at 2 to 3 kg/cm² for the torque converter, while the TORQFLOW pump maintains a delivery rate of 73.7 liters per minute at 1,850 rpm. Reference the factory workshop documentation structure to understand how the system is categorized by component group.
Note: All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work.
An official 409-page Komatsu OEM workshop manual covering the D68E-1 / D68P-1 Bulldozer series, documenting engine, chassis, electrical, and hydraulic specifications for the standard and Brazilian variants across specified serial number ranges.
Document Reference: SEBMU1440102
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