This manual covers the Stihl TS410 and TS420 cut-off machines, powered by a 2-stroke gasoline engine with a displacement of 64.1 cm³ and delivering 3.2 kW (4.3 hp). These machines are engineered for professional use, featuring a direct drive system with a centrifugal clutch and an electronic ignition for reliable performance. The intelligent primer with control ensures easy starting, while the air-cooled system maintains optimal operating temperatures. Designed to accept a maximum cutting wheel diameter of 350 mm (14 inches), they can achieve a cutting depth of up to 125 mm (4.9 inches). The robust construction and advanced features make the TS410 and TS420 dependable tools for demanding cutting applications.

This service manual provides comprehensive guidance for the maintenance and repair of the Stihl TS410 and TS420 cut-off machines. It details essential procedures, including spark plug replacement (NGK CMR6H), air filter maintenance, and cutting wheel replacement. Information on fuel mixture ratios, utilizing unleaded gasoline with 2-stroke oil at either 1:50 for Stihl HP Ultra or 1:25 for other 2-stroke oils, is also included. Technical specifications, troubleshooting tips, and safety guidelines are presented to assist owners, mechanics, and technicians in ensuring the longevity and optimal performance of their equipment.

This manual covers the Stihl TS410 and TS420 cut-off machines, powered by a 2-stroke gasoline engine with a displacement of 64.1 cm³ and delivering 3.2 kW (4.3 hp). These machines are engineered for professional use, featuring a direct drive system with a centrifugal clutch and an electronic ignition for reliable performance. The intelligent primer with control ensures easy starting, while the air-cooled system maintains optimal operating temperatures. Designed to accept a maximum cutting wheel diameter of 350 mm (14 inches), they can achieve a cutting depth of up to 125 mm (4.9 inches). The robust construction and advanced features make the TS410 and TS420 dependable tools for demanding cutting applications.

This service manual provides comprehensive guidance for the maintenance and repair of the Stihl TS410 and TS420 cut-off machines. It details essential procedures, including spark plug replacement (NGK CMR6H), air filter maintenance, and cutting wheel replacement. Information on fuel mixture ratios, utilizing unleaded gasoline with 2-stroke oil at either 1:50 for Stihl HP Ultra or 1:25 for other 2-stroke oils, is also included. Technical specifications, troubleshooting tips, and safety guidelines are presented to assist owners, mechanics, and technicians in ensuring the longevity and optimal performance of their equipment.