Stihl MS 441 C-M MAGNUM174 Product Instruction Manual - Page 9

(approx. 1/4 turn). The positioning mark on the cap should now line up with the "closed" mark on the tank. Fold the grip flush with the top of the cap. Grip the cap and check for tightness. If the grip does not lie completely flush with the cap and the detent on the grip does not fit in the corresponding recess in the filler opening, or if the cap is loose in the filler opening, the cap is not properly seated and tightened and you must repeat the above steps. Misaligned, damaged or broken cap N If the cap does not drop fully into the opening when the positioning marks line up and/or if the cap does not tighten properly when twisted, the base of the cap may be prematurely rotated (in relation to the top) to the closed position. Such misalignment can result from handling, cleaning or an improper attempt at tightening. 1 Left: Right: Bottom of cap in closed position - inner mark (1) in line with outer mark. Bottom of cap in correct position for installation - inner mark is under the grip and not in line with the outer mark. N To return the cap to the open position for installation, turn the cap (with the grip up) until it drops fully into the tank opening. Next, twist the cap counterclockwise as far as it will go (approx. 1/4 turn) - this will twist the base of the cap into the correct position for installation. Then, twist the cap clockwise, closing it normally. N If your cap still does not tighten properly, it may be damaged or broken; immediately stop use of the unit and take it to your authorized STIHL dealer for repair. 001BA239 KN 001BA238 KN English See also the "Fueling" chapter in your Instruction Manual for additional information. Before Operation Take off the chain guard (scabbard) and inspect the chain saw for proper condition and operation. (See the maintenance chart near the end of the instruction manual.) WARNING Always check your chain saw for proper condition and operation before starting, particularly the throttle trigger, throttle trigger lockout, stop switch and cutting attachment. The throttle trigger must move freely and always spring back to the idle position. The Master Control Lever / stop switch must move easily to STOP, 0 or †. Never attempt to modify the controls or safety devices. WARNING Check fuel system for leaks, especially the visible parts, e.g., filler cap, hose connections, manual fuel pump (only for chain saws equipped with a manual fuel pump). Do not start the engine if there are leaks or damage - risk of fire! Have the chain saw repaired by a STIHL servicing dealer before using it. WARNING Check that the spark plug boot is securely mounted on the spark plug - a loose boot may cause arcing that could ignite combustible fumes and cause a fire. MS 441 C-M 7