This comprehensive International Harvester 766, 826, 966, 1026, and 1066 Tractor Full Service Repair Manual is a must-have for anyone looking to repair, maintain, rebuild, refurbish, or restore their tractor. This manual provides detailed information that mirrors the knowledge used by professional technicians and mechanics. It covers a wide range of topics, including diagnostic procedures, repair instructions, maintenance schedules, wiring diagrams, and troubleshooting guides. Whether you're a seasoned mechanic or a DIY enthusiast, this manual provides the information you need to confidently tackle any repair or maintenance task. The manual features clear and concise instructions that are easy to follow, even for beginners. Detailed illustrations, drawings, and photos accompany each step, ensuring that you understand the procedure and can complete it successfully. The manual also includes troubleshooting sections that help you identify and resolve problems quickly and efficiently. This manual is a valuable resource for anyone who owns or works on an International Harvester 766, 826, 966, 1026, or 1066 tractor.

The International Harvester 766, 826, 966, 1026, and 1066 tractors were a series of powerful and versatile agricultural machines produced by International Harvester from the late 1960s to the mid-1980s. These tractors represented a significant evolution in farm machinery, incorporating advancements in engine technology, hydraulic systems, and overall design. The 766, the smallest of the series, was a compact and maneuverable tractor ideal for smaller farms and specialized tasks, while the 1066, the largest, was a powerhouse capable of handling demanding farm operations like plowing, disking, and heavy-duty hauling. All models featured a robust construction, with a durable cast iron frame and a strong powertrain. The tractors were equipped with powerful diesel engines, ranging in size from the 6-cylinder 399-cubic-inch engine in the 766 to the larger 401-cubic-inch 6-cylinder engine in the 1066. The engines were renowned for their durability and reliability, delivering ample power for various agricultural applications. Further enhancing their versatility, these International Harvester tractors featured advanced hydraulic systems, providing increased lifting capacity and responsiveness. The tractors were equipped with a hydraulically controlled three-point hitch, enabling them to operate a wide range of implements, from plows and cultivators to balers and loaders. The 766 series tractors were known for their user-friendly design, featuring a comfortable operator station, well-placed controls, and excellent visibility. They were widely appreciated by farmers for their dependability, efficiency, and ability to handle a variety of tasks. The International Harvester 766, 826, 966, 1026, and 1066 tractors left a lasting impression on agricultural history, solidifying International Harvester's reputation as a leading manufacturer of farm equipment. These tractors continue to be highly sought after by collectors and farmers alike, proving their enduring legacy and testament to their robust design and impressive capabilities.