The International Harvester 856 Tractor, produced from 1967 to 1971, represents a significant piece of agricultural machinery known for its power and versatility. As part of the esteemed '86 Series', these tractors were built with the durability and robust engineering characteristic of International Harvester, a manufacturer with a rich heritage in agricultural and industrial equipment. The 856 model was a popular and well-regarded workhorse, earning recognition for its dependable performance in the demanding agricultural sector. Its design emphasized practicality and efficiency, making it a valuable asset for farmers and operators of its era. This comprehensive Factory Service Repair Manual provides complete service and repair information for the IH International Harvester 856 Tractor. It covers a wide array of systems, including the engine, cooling system, diesel and LP-Gas fuel systems, clutch, torque amplifier, transmission, differential, final drive, brakes, power steering, hydraulic system, and electrical system. The manual is designed to assist both do-it-yourself enthusiasts and experienced mechanics with detailed, step-by-step instructions, hundreds of photos and illustrations, and troubleshooting guidance. It offers a cost-effective and convenient way to maintain the tractor, ensuring it continues to operate efficiently and reliably.