This workshop service repair manual covers the JCB 506B Telescopic Handler, serial numbers 570000 to 579766. Engineered for reliability and robust performance, this versatile machine is designed for demanding operational environments. Its advanced features and construction underscore JCB's commitment to quality and efficiency in material handling equipment. This comprehensive manual provides detailed information for both do-it-yourself enthusiasts and experienced mechanics. It includes complete official factory service repair procedures for all major systems, such as the engine, transmission, axles, brakes, hydraulics, and electrical systems. Additionally, it covers body and framework, control systems, and specialized features like Boom Float and Return to Dig, ensuring thorough maintenance and repair capabilities.