This comprehensive Factory Service Repair Manual provides detailed instructions and schematics for servicing and repairing your International Harvester 786, 886, 986, and 1086 tractors. The manual covers everything from routine maintenance procedures to complex engine rebuilds, ensuring you have the information needed to keep your tractor running smoothly. The manual is organized into sections, each dedicated to a specific system or component. You'll find detailed instructions on troubleshooting common issues, performing routine maintenance tasks, and undertaking major repairs. Clear diagrams, illustrations, and step-by-step instructions make it easy to follow along. This factory manual includes: * **Detailed engine specifications and repair procedures:** Learn how to diagnose engine problems, perform tune-ups, rebuild the engine, and complete other essential engine maintenance. * **Transmission and drivetrain information:** Find guidance on repairing and adjusting the transmission, differentials, axles, and other drivetrain components. * **Hydraulic system diagrams and instructions:** Understand the operation of your tractor's hydraulic system, diagnose problems, and perform repairs. * **Electrical system wiring diagrams and troubleshooting procedures:** Locate and understand the electrical system wiring, troubleshoot electrical issues, and perform repairs. * **Body and frame information:** Get instructions for removing and repairing body panels, fenders, and the frame. * **Extensive parts diagrams:** Locate specific parts, understand their functions, and order replacements when needed. Investing in this Factory Service Repair Manual gives you the knowledge and confidence to keep your International Harvester tractor running efficiently for years to come. You can save money on costly repairs by understanding the inner workings of your tractor and performing basic maintenance yourself.

The International Harvester 786, 886, 986, and 1086 tractors were a line of powerful and versatile agricultural machines produced by International Harvester from the late 1960s to the early 1980s. They were known for their durability, reliability, and ability to handle a wide range of tasks, making them popular choices among farmers and ranchers. These tractors were available in various configurations, with different engine options, transmissions, and hydraulic systems to suit individual needs. The 786 was the smallest model in the series, while the 1086 was the largest, offering significant horsepower and torque for demanding applications. All models featured a distinctive design, with a sloping hood, a wide, comfortable cab, and a sturdy, well-built chassis. These tractors were equipped with powerful diesel engines, providing efficient operation and impressive pulling power. The International Harvester 786, 886, 986, and 1086 tractors were designed to withstand the rigors of agricultural work, making them a reliable choice for generations of farmers. They were known for their robust construction, ease of maintenance, and user-friendly controls, making them popular choices for both small-scale family farms and large-scale agricultural operations. These tractors continue to be admired for their performance, durability, and classic design, even though they are no longer in production.