The International Harvester 786 represents a robust and reliable piece of machinery, known for its versatility and enduring performance. Produced during the late 1970s and early 1980s, this model is a testament to International Harvester's long-standing heritage in agricultural and industrial equipment. Designed to meet the demanding needs of its users, the 786 embodies the engineering quality and dependability that have become hallmarks of the brand, offering a powerful solution for a wide range of operational tasks. This comprehensive workshop repair service manual provides in-depth coverage for all models, engines, trim, and transmission types of the International Harvester 786. It serves as an essential resource for owners, technicians, and repair shops, detailing routine maintenance, disassembly and servicing procedures, advanced troubleshooting, diagnostic steps, and repair instructions for every major system, including the engine, lubrication, cooling, fuel, clutch, transmission, drive train, rear axle, brakes, front axle, steering, shocks, body work, intake/exhaust, and hydraulic and electrical systems. With hundreds of pages of diagrams, critical specifications, and step-by-step guidance, this manual empowers users to maintain, diagnose, and repair their equipment effectively, potentially saving significant costs.