This Workshop Service Repair Manual covers the JCB JS160 Auto Tier 3 excavator, designed for demanding construction and earthmoving applications. Built with robust engineering and renowned reliability, this tracked machine features a powerful 4.5-liter Cummins QSB4.5 diesel engine producing 116 hp, meeting Tier 3 emissions standards. Its hydrostatic transmission with Auto Track functionality ensures efficient operation, while its substantial operating weight of approximately 16,000-17,000 kg and advanced hydraulic system with a max flow rate of up to 220 L/min make it a versatile and capable piece of equipment for various job sites. This comprehensive manual provides essential information for the maintenance, repair, and troubleshooting of your JCB JS160 Auto Tier 3. It details critical procedures for engine and hydraulic systems, including fluid capacities and specifications. Technical data, safety guidelines, and diagnostic information are included to assist owners, mechanics, and technicians in ensuring optimal performance and longevity of the machine. This English-language resource is designed to be an indispensable tool for all service-related needs.