The Komatsu N-855 Series (N-855-C, NT-855-C, NTA-855-C) Diesel Engine Service Repair Manual provides comprehensive technical information and step-by-step instructions for servicing and repairing these powerful engines. This manual is an essential resource for both experienced mechanics and DIY enthusiasts, offering detailed insights into every aspect of the engine's operation.

The manual covers a wide range of topics, including:

* **General Information:** A thorough introduction to the engine's design, specifications, and operating principles.
* **Engine Mechanical:** Detailed descriptions of the engine's components, including the crankshaft, connecting rods, pistons, and cylinder head, along with comprehensive instructions for their disassembly, inspection, repair, and reassembly.
* **Fuel System:** Explanations of the fuel delivery system, including the fuel pump, injectors, and fuel lines, with detailed guidance on troubleshooting and repair procedures.
* **Exhaust System:** Information on the exhaust manifold, exhaust pipe, and muffler, covering maintenance and repair techniques.
* **Cooling System:** Descriptions of the radiator, water pump, thermostat, and other components, along with comprehensive instructions for cooling system maintenance and troubleshooting.
* **Lubrication System:** Detailed explanations of the oil pump, oil filter, and other components, providing guidance on oil changes, lubrication system maintenance, and potential issues.
* **Electrical System:** Information on the engine's electrical components, including the starter, alternator, wiring harness, and sensors, enabling you to diagnose and repair electrical problems.
* **Intake System:** Descriptions of the air filter, intake manifold, and other components, with instructions on maintaining and repairing the intake system.
* **Preheating System:** Information on the preheating system, including the glow plugs and preheating controls, providing guidance on troubleshooting and repair procedures.

This manual is a valuable investment for anyone who owns or maintains a Komatsu N-855 Series engine. It provides the knowledge and guidance needed to perform repairs and maintenance confidently and effectively, saving time, effort, and money.

The Komatsu N-855 diesel engine is a renowned powerplant, known for its reliability and durability, designed for heavy-duty applications across various industries. The N-855 series encompasses several variants, including the N-855-C, NT-855-C, and NTA-855-C, each tailored to specific power and performance needs. These engines are broadly employed in construction equipment, such as excavators, loaders, and bulldozers, as well as in mining machinery, agricultural equipment, and industrial applications. The Komatsu N-855 series distinguishes itself through its robust construction, incorporating high-quality materials and precision engineering. The engine features a durable cast-iron block and cylinder head, capable of withstanding demanding operating conditions and extended service intervals. Advanced fuel injection systems optimize combustion efficiency and minimize emissions, while robust cooling systems ensure optimal operating temperatures under heavy loads.

The Komatsu N-855 series is known for its high power output, ranging from 250 to 400 horsepower, depending on the specific model. This power is delivered through a combination of factors, including a large displacement, high-pressure fuel injection, and efficient turbocharging. The engines are designed for reliability, offering long service life and minimal downtime. Komatsu's commitment to quality is further reflected in the availability of comprehensive service and repair manuals, such as the Komatsu N-855 Diesel Engine Service Repair Manual. This manual provides detailed information on every aspect of the engine, from basic maintenance procedures to complex repair techniques. It serves as an invaluable resource for technicians and mechanics seeking to maintain and repair Komatsu N-855 engines, ensuring optimal performance and longevity.