This comprehensive International Harvester 786 Tractor Service Repair Manual provides in-depth information to guide you through all aspects of repair and maintenance. It is designed for both experienced mechanics and DIY enthusiasts, offering clear and detailed instructions to ensure successful repairs. The manual includes detailed illustrations, diagrams, wiring schematics, and specifications, along with step-by-step instructions for every procedure. It covers a wide range of components and systems, including: - **General Information:** Provides an overview of the International Harvester 786 Tractor, including essential details about its design and operation. - **Engine Mechanical System:** This section delves into the intricate workings of the engine, covering components such as the crankshaft, connecting rods, pistons, valves, and camshaft. It also includes information on troubleshooting and repair procedures for common engine issues. - **Engine Electrical System:** Understand the electrical system of the engine, including the starter, alternator, ignition system, and wiring diagrams. This section allows you to diagnose and repair electrical problems effectively. - **Emission Control System:** This section covers the components and operation of the emission control system, ensuring you can maintain proper emissions levels and comply with regulations. - **Fuel System:** This section covers all aspects of the fuel system, including the fuel tank, fuel lines, fuel pump, fuel filter, and carburetor or fuel injection system. It provides detailed instructions for troubleshooting and repairing problems related to fuel delivery and combustion. - **Suspension System:** Learn about the different components of the suspension system, including springs, shocks, axles, and steering components, and how to diagnose and repair suspension issues. - **Clutch System:** This section provides detailed information on the clutch system, including the clutch disc, pressure plate, release bearing, and hydraulic system. It covers troubleshooting and repair procedures for clutch problems. - **Manual Transaxle System/Automatic Transaxle System:** This section includes detailed information on the transmission, covering both manual and automatic transmissions. It provides step-by-step instructions for repair and maintenance of the gearbox, including shifting mechanisms, gears, and synchronizers. - **Driveshaft and Axle:** Learn about the driveshaft and axle system, including the driveshaft, differential, axle shafts, and wheel hubs. This section provides information on diagnosing and repairing problems related to power transfer and wheel rotation. - **Steering System:** This section covers steering components such as the steering wheel, steering column, steering gear, tie rods, and linkages. It provides guidance on troubleshooting and repairing steering problems. - **Brake System:** This section includes detailed information on the brake system, covering components such as the brake master cylinder, brake calipers, brake pads/shoes, and brake lines. It provides guidance on diagnosing and repairing brake problems. - **Body Interior and Exterior:** This section provides information on the interior and exterior of the tractor, covering upholstery, trim, door panels, windows, and bodywork. It includes instructions on repairing and replacing these components. - **Body Electrical System:** This section covers the electrical system related to the tractor's body, including lights, gauges, switches, and accessories. Provides detailed wiring diagrams to help you understand and troubleshoot electrical problems. - **Restraint System:** This section covers the restraint system of the tractor, particularly focusing on safety features such as seat belts and roll cages. The International Harvester 786 Tractor Service Repair Manual is meticulously structured with clear and concise language, making it easy to navigate and find the information you need quickly. The detailed illustrations and numbering system allow you to follow each procedure step-by-step, ensuring a smooth and successful repair experience.

The International Harvester 786 tractor, a stalwart of American agriculture during the 1970s and 1980s, represents a testament to the company's engineering prowess and commitment to building dependable farm machinery. This model, introduced in 1973, built upon the legacy of its predecessors, boasting numerous improvements and advanced features. The 786 was powered by a robust, naturally aspirated International diesel engine, known for its raw power and exceptional fuel efficiency. Its six-cylinder configuration delivered ample torque, making it well-suited for demanding tasks like plowing, discing, and hauling heavy loads. Alongside its mechanical strength, the 786 showcased a comfortable operator environment with a spacious cab offering excellent visibility and ergonomic controls. The robust transmission, designed for handling the rigors of agricultural work, provided multiple gear ratios for optimal performance in varied terrain and soil conditions. However, like any complex machine, the International Harvester 786 tractor required meticulous maintenance and timely repairs to maintain peak performance and reliability. Its intricate mechanical systems, from the powerful engine to the precise hydraulic controls, demanded a thorough understanding of its operation and potential issues. This is where the "International Harvester 786 Tractor Workshop Service Repair Manual" becomes a crucial resource for owners, mechanics, and technicians. This comprehensive guide provides detailed information on every aspect of the 786, from routine maintenance procedures to complex engine overhauls. It includes wiring diagrams, exploded views, step-by-step instructions, and troubleshooting tips, equipping users with the knowledge and expertise to keep their 786 running smoothly for years to come. By arming mechanics with the essential information and detailed illustrations, this manual empowers them to tackle any repair efficiently and effectively, ensuring the continued productivity and longevity of this iconic International Harvester tractor.