Komatsu N855 Series Diesel Engine Shop Manual
Field service reference for Komatsu N855 Series Diesel Engine — covers engine structure, function, testing, maintenance, and repair procedures. PN 09-84(01)10431
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Models Covered & Key Technical Specifications
Operational Engineering Reference Manual: Diesel Engine Shop-Grade Komatsu N855 Series Diesel Engine Service Manual Calibration-Manual Diesel Engine Shop-Grade Komatsu N855 Series Diesel Engine Service Manual | N855 Series Module.
- Verified Current Rating: 24V, 25A establishes the electrical system's primary power output.
- Key Climate Specs: 43 L defines the essential cooling system capacity for optimal operation.
- Principal Output Performance: 180/1,850 HP/RPM -- signifies the maximum continuous power output.
- Advanced Net Mass: 1,450 kg defines the base weight of the engine assembly.
- Design Assembly Torques: 8.5–9.5 kg/cm² requires precise tightening for critical components.
- Designated Wattage Specs: 11 kW dictates the required power for the starting motor function.
Manual Description & Preview
Operational Engineering Reference Manual: Diesel Engine Shop-Grade Komatsu N855 Series Diesel Engine Service Manual Calibration-Manual
Maintenance-Category: Komatsu N855 Series Diesel Engine // Operational-Framework: Diesel Engine / Engine Logic // Maintenance-Category: Complete Service and Repair Documentation.
| Diagnostic-Logic | Calibration-Spec | Component | Diagnostic-Logic | Calibration-Spec |
|---|---|---|---|---|
| General Structure | Detailed engine component identification | N/A | ||
| Intake and Exhaust | System diagrams and component listings | N/A | ||
| Fuel System | Chart of fuel flow and component relationships | N/A | ||
| Cooling System | Diagram of coolant flow and component identification | N/A | ||
| Lubrication System | Schematic of oil flow and component functions | N/A | ||
| Testing and Adjusting | Comprehensive procedures and specifications | N/A |
Diagnostic procedures address the engine's internal systems, including the intake and exhaust, fuel, cooling, and lubrication systems. The manual documents torque specifications for critical engine components to ensure proper axial load stability. This manual provides detailed information on testing and adjusting procedures, ensuring Accurate performance and longevity of the Diesel Engine.
Quality checks are addressed for all major engine systems and components, including detailed breakdowns and diagrams.
The Fuel System section documents the fuel flow and component relationships, with schematics for various configurations.
The troubleshooting chapter addresses common issues, providing guidance on identifying and resolving problems.
Cooling system maintenance is addressed in diagrams illustrating coolant flow and component identification.
Testing requirements are specified for engine performance criteria, including torque, fuel pressure, and temperatures.
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