This comprehensive Cummins Big Cam III and Big Cam IV, NT 855 Diesel Engine Troubleshooting and Repair Manual provides detailed instructions and information for servicing and repairing your engine. It is a valuable resource for both experienced mechanics and DIY enthusiasts.

The manual covers a wide range of topics, including:

* **Engine Identification:** Learn how to identify the specific model and components of your Cummins engine.
* **Troubleshooting:** This section offers step-by-step guidance to diagnose and address common engine problems.
* **Cooling System:** Gain in-depth knowledge of the cooling system, including maintenance, repair, and troubleshooting.
* **Lubricating Oil System:** This section covers oil changes, filter replacements, and diagnosing oil-related issues.
* **Combustion Air System:** Understand the workings of the air intake system and how to resolve air-related problems.
* **Compressed Air System:** Learn about the compressed air system, including maintenance, repair, and troubleshooting.
* **Fuel System:** This section provides comprehensive information on the fuel system, including fuel delivery, injectors, and troubleshooting guides.
* **Electrical System:** Understand the electrical system of your engine, including wiring diagrams, troubleshooting, and component replacement.
* **Base Engine Components:** Explore the inner workings of the engine, including major components and their functions.
* **Engine Testing:** Learn how to perform comprehensive engine tests and interpret the results.
* **Engine Removal and Installation:** This section provides detailed instructions for safely removing and installing your engine.
* **Engine Component Specifications:** Find technical specifications for all major engine components.
* **Alphabetical Index:** Provides easy access to specific topics and information within the manual.
* **Additional Service Literature:** References additional resources for further information.
* **Accessory Component Manufacturers:** A list of manufacturers for engine accessories and components.

This manual is a valuable resource for anyone who wants to maintain, repair, or troubleshoot their Cummins Big Cam III and Big Cam IV, NT 855 Diesel Engine.

The Cummins Big Cam III and Big Cam IV NT 855 diesel engines are renowned for their robust construction, reliable performance, and impressive power output. These engines power a wide array of heavy-duty applications, including trucks, buses, construction equipment, and marine vessels. The NT 855 series is known for its high torque and horsepower, making it suitable for demanding tasks requiring significant power. The Big Cam III and Big Cam IV models, specifically, are distinguished by their advanced camshaft design, which improves combustion efficiency and fuel economy. While both engines share the same basic architecture, the Big Cam IV boasts enhanced features such as electronic fuel injection and a more refined emission control system.

The Cummins Big Cam III and Big Cam IV NT 855 engines are recognized for their durability and long service life. However, like any mechanical device, they may require troubleshooting and repair procedures over time. This is where a comprehensive troubleshooting and repair manual becomes invaluable. A detailed manual provides step-by-step instructions and diagnostic procedures to identify and rectify any issues that may arise. It covers various aspects, including engine performance problems, electrical faults, and mechanical breakdowns. The manual also offers insights into the engine's design, components, and specifications, enabling users to understand its operation and maintenance requirements. With its in-depth guidance, a dedicated troubleshooting and repair manual empowers users to diagnose and resolve engine problems effectively, minimizing downtime and maximizing engine performance.