This workshop service manual covers the Stihl TS 400, a robust tool engineered for demanding cutting tasks. Featuring a powerful 2-stroke gasoline engine, the TS 400 is designed for reliability and efficiency in professional applications. Its construction prioritizes durability, ensuring consistent performance across a variety of construction and demolition projects. The direct drive transmission system contributes to its straightforward operation and maintenance. This comprehensive manual provides detailed guidance for owners, mechanics, and technicians. It encompasses every aspect of the Stihl TS 400, from routine maintenance procedures such as oil changes, spark plug replacement, and air filter servicing, to in-depth troubleshooting for common issues like engine starting problems and cutting performance degradation. Technical specifications, including details on the cutting wheel, fuel system, weight, and dimensions, are also included, making this manual an indispensable resource for maintaining the longevity and optimal functionality of your equipment.