The Oliver Super 550 tractor, produced in the mid-1950s, is a testament to Oliver Corporation's legacy of robust construction and reliability in agricultural applications. Designed for demanding farm work, this tractor is recognized for its dependable performance and enduring build quality. Whether equipped with a gasoline or diesel engine variant, the Super 550 offers a range of configurations, including manual transmission with multiple gears, Power Take-Off (PTO) capabilities, and differential lock options, making it a versatile and capable machine for various agricultural tasks. This comprehensive workshop service and repair manual, presented in English and over 1000 pages, provides detailed guidance for owners, mechanics, and enthusiasts. It covers all essential aspects of the Oliver Super 550, including in-depth engine diagnostics and repair, transmission overhaul, clutch and hitch servicing, and maintenance of the cooling, fuel, electrical, and hydraulic systems. The manual also includes troubleshooting procedures, adjustment instructions, replacement guidelines, and detailed technical specifications, such as torque values and fluid recommendations, all supported by extensive illustrations and diagrams to facilitate easy understanding and execution of maintenance and repair tasks.