This comprehensive repair manual is designed for professional technicians and DIY mechanics working on International Harvester Tractors models 786, 886, 986, and 1086. It provides detailed information for repairing and maintaining these tractors, catering to individuals with a basic understanding of electrical and mechanical concepts. The manual covers topics typically found in factory service and owner's manuals, including step-by-step repair procedures, critical specifications, maintenance instructions, disassembly and assembly processes, cleaning and reinstalling procedures, and detailed illustrations and diagrams. This manual empowers owners to confidently perform repairs and maintenance on their International Harvester tractors, ensuring optimal performance and longevity.

The International Harvester 786, 886, 986, and 1086 tractors were a series of powerful and versatile agricultural machines produced by International Harvester from the mid-1960s to the early 1980s. These tractors were known for their durability, reliability, and performance, making them popular choices for farmers and ranchers across the globe. The 786 was the smallest of the series, offering a 110-horsepower engine, while the 1086 boasted a robust 175-horsepower engine, capable of handling the most demanding tasks. All models featured a rugged design with a heavy-duty frame and a spacious operator's cab, ensuring comfort and safety for the operator. The International Harvester 786, 886, 986, and 1086 tractors were equipped with a wide range of features, including a powerful three-point hitch system for attaching implements, a hydraulic system for powering attachments, and a variety of transmission options for adapting to different working conditions. These tractors could be used for a wide range of applications, from plowing and planting to harvesting and hauling, making them valuable assets for any farm or ranch. They were also equipped with optional features like a front-end loader, which further expanded their versatility and enabled them to perform tasks such as loading materials, moving hay bales, and clearing snow. The International Harvester 786, 886, 986, and 1086 tractors were renowned for their durability and reliability, often working for decades without major issues. This dependability, combined with their impressive power and versatility, solidified their position as icons of the agricultural industry.