This manual covers the JCB 802.7, 803, and 804 Mini Excavator models, designed for a variety of demanding applications. These machines are engineered for robust performance and reliability, offering efficient operation and durability in construction and landscaping environments. The comprehensive coverage of various serial number ranges ensures that owners and operators of these excavators have access to the precise information needed to keep their equipment running optimally. The purpose of this factory service repair manual is to provide detailed guidance for the maintenance, repair, and troubleshooting of your JCB Mini Excavator. It includes extensive information on general procedures, care and safety, routine maintenance, optional equipment, body and framework, electrical systems, controls, hydraulics, gearboxes, track and running gear, and engine systems. With step-by-step instructions, detailed illustrations, and a troubleshooting guide, this manual empowers owners and technicians to perform service tasks efficiently, potentially leading to significant labor cost savings.