This Service Repair Workshop Manual covers the JCB 506c, 506 Hl, and 508c Telescopic Handlers. These robust machines are engineered for demanding applications in material handling, construction, and agriculture, featuring a reliable diesel engine and a 4WD hydrostatic transmission. Designed to operate in various weather and terrain conditions, their telescopic boom reach provides exceptional versatility. The JCB telescopic handlers are built for durability and performance, ensuring efficient operation across a wide range of tasks. This comprehensive manual provides essential information for maintaining and repairing your JCB telescopic handler. It details critical maintenance procedures, including recommended hydraulic oil types and service intervals, alongside an inspection schedule. Technical specifications, operational parameters, and troubleshooting guidance are included to assist owners, mechanics, and technicians. This English-language resource is designed to ensure your equipment remains in optimal working condition.