This manual covers the JCB Telescopic Handler, specifically the 531, 533, 535, 536, 540, 541, and 550 Series models manufactured from 1186000 onwards. These machines are engineered for demanding work environments, offering robust performance and reliability. The JCB 444 Diesel engine powers these units, providing the necessary strength for a wide range of industrial and construction applications. This documentation is designed to provide comprehensive information on these high-quality pieces of equipment. The purpose of this 1809-page English language service and repair manual is to assist owners, professional technicians, mechanics, and workshops in maintaining and repairing their JCB Telescopic Handlers. It includes detailed information on routine and preventative maintenance, troubleshooting support, and technical specifications. With clear, step-by-step instructions, zoomable illustrations, and exploded views, this manual facilitates diagnostics, repairs, servicing, and rebuilding, ensuring the longevity and optimal performance of your equipment.