The JCB JS240 Auto Tracked Excavator, produced under the Tier 3 emission standard, represents a robust piece of construction equipment engineered for demanding tasks. Featuring a powerful Cummins QSB6.7 diesel engine delivering approximately 173 HP and a hydrostatic transmission, this excavator offers efficient and reliable performance. Its substantial operating weight of around 23,770 kg and impressive digging capabilities, including a maximum depth of approximately 6.6 meters and reach of 9.9 meters, make it suitable for a wide range of heavy-duty applications. The machine is equipped with pilot-operated joystick controls and a ROPS/FOPS certified cab for operator safety and comfort. This Workshop Repair Service Manual in English provides comprehensive guidance for maintaining and repairing the JCB JS240 Auto Tracked Excavator. It covers essential areas such as detailed maintenance schedules, fluid capacities for the engine oil, hydraulic system, and coolant, along with service intervals for filters. Technical specifications, including machine dimensions and engine details, are included to aid in understanding the equipment's design and capabilities. This manual serves as an indispensable resource for owners, technicians, and mechanics to ensure the optimal performance, longevity, and safe operation of the excavator.