Stihl BR 340 Instruction Manual - Page 29

before starting work after finishing work or daily after each refueling stop weekly monthly every 12 months if problem if damaged if required English / USA Maintenance Chart The following maintenance intervals apply to normal operating conditions only. If your daily working time is longer than normal or operating conditions are difficult (very dusty work area etc.), shorten the specified intervals accordingly. Complete machine Control handle Air filter Pick up body in fuel tank Fuel tank Carburetor Spark plug Cooling air intakes Spark arresting screen in muffler All accessible screws and nuts (not adjusting screws) Anti-vibration elements Blower air intake screen Safety label Visual inspection (conditon, leaks) x x Clean x Check operation x x Clean x Replace x Check x Replace x x Clean x Check idle setting x x Readjust idle x Readjust electrode gap x Replace after about 100 operating hours Clean x Check x Clean or replace x Tighten x Check x Have replaced by servicing dealer1) Check x x Clean Replace x x x x 1) STIHL recommends that this work be done by a STIHL servicing dealer 28 BR 340, BR 340 L, BR 420, BR 420 C