The Takeuchi TB135 is a robust compact excavator designed for demanding construction and landscaping applications. Its tracked drive system provides excellent stability and maneuverability across various terrains, while its hydrostatic transmission with variable two-speed gearing ensures precise control and efficient power delivery. With an operating weight of 3630 kg and impressive digging capabilities, including a maximum digging depth of 3105 mm and a reach of 5160 mm, the TB135 is engineered for productivity and reliability in challenging work environments. This Workshop Service Manual (WSM) in English provides comprehensive guidance for the maintenance and repair of the Takeuchi TB135. It covers essential operational details, technical specifications, and detailed procedures for routine maintenance, such as fluid capacities for engine oil, hydraulic oil, and coolant, as well as filter types. This manual is an indispensable resource for owners, technicians, and mechanics to ensure the optimal performance, longevity, and safe operation of the TB135.