This workshop service manual covers the JCB 540-70 Telescopic Handler, Royal Navy Service Manual Edition, for serial numbers 1005673 onwards. Engineered for robust performance and reliability, this machine is designed for demanding operational environments. Its advanced telescopic design provides exceptional reach and versatility, making it an indispensable tool for various material handling tasks. The JCB 540-70 is built with precision engineering, ensuring durability and efficient operation, reflecting JCB's commitment to quality and innovation in heavy equipment manufacturing. This comprehensive manual is intended for mechanical technicians and provides detailed guidance for workshop repair and overhaul. It encompasses routine maintenance, servicing procedures, diagnostic protocols, and in-depth repair instructions for all major systems, including the engine, transmission, fuel, ignition, electrical, and exhaust systems. The manual also details body repair, lubrication, and the proper use of special tools, referencing JCB special tool numbers with illustrations. Safety precautions, including the use of safety equipment and torque wrenches, are emphasized throughout.