The International Harvester 574 Tractor, produced primarily in the United Kingdom during the early to mid-1970s, represents a robust and versatile medium-duty agricultural machine. Built upon the strong heritage of International Harvester, this tractor is known for its durability and reliability, making it a valuable asset for a wide range of farming and operational tasks. Featuring a dependable International Harvester BD Series Diesel engine, typically a 4-cylinder naturally aspirated unit around 3.1-3.3 liters, and a manual transmission with dual-speed range selection, the 574 was engineered for practical performance. Its design prioritizes functionality and longevity, ensuring it can handle demanding work, a testament to the engineering quality of its era. This comprehensive service and repair manual provides essential information for the maintenance and upkeep of your International Harvester 574 Tractor. It covers a broad spectrum of critical systems, including detailed procedures for engine, transmission, brake, cooling, fuel, electrical, and hydraulic systems. The manual also includes guidance on chassis and bodywork, periodic lubrication schedules, and systematic troubleshooting techniques to help diagnose and resolve issues efficiently. By offering in-depth instructions for disassembly, reassembly, repair, and servicing, this resource empowers owners and technicians to maintain the tractor's optimal performance and extend its operational life, ensuring cost-effectiveness and continued productivity.