Stihl MS 441 C-M MAGNUM174 Product Instruction Manual - Page 44

English Air Filter System The air filter system can be adapted to different operating conditions by the insertion of different air filters. Retrofitting is simple. Fouled air filters will impair engine performance, increase fuel consumption and make the machine more difficult to start. Remove air filter N Move the Master Control lever to the stop position 0 001BA210 KN N HD2-Filter (black filter frame. folded filter fabric) Universal filter for almost all conditions of use (from very dusty to wintry conditions etc.) N Use a combination wrench to open the clamps (1) in the direction of the arrow N Remove the carburetor box cover (2) 001BA212 KN N Wire mesh filter (green filter housing) Use in extra-ordinary conditions e.g. extremely wintry conditions of use - such as powder snow or drift snow. Rather unsuitable in very dusty conditions. When dry, STIHL filters attain a long service life. N Always use STIHL filters dry 42 N Unscrew the twist lock (3) in the direction of the arrow N Remover filter MS 441 C-M