Stihl MS 880 Instruction Manual - Page 35
Illustrations A and B: The base
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mark (1) lined up with the "unlocked" symbol (2) on the fuel tank housing. 4 1 3 N Using the grip, press the cap down firmly while turning it clockwise to the closed position (approximately 1/4 turn). In the closed position, the interior (4) and exterior (1) positioning marks will align with the "locked" symbol (3) on the fuel tank housing. N Fold the grip flush with the top of the cap and check for tightness. WARNING If the grip does not lie completely flush with the cap or the detent on the grip does not fit in the corresponding recess in the tank opening, or if the cap is loose, the cap is not properly seated and you must repeat the above steps. Also refer to the procedure below for returning the base of the cap to the proper starting position for installation. 0000-GXX-6427-A0 0000-GXX-6421-A0 0000-GXX-6422-A0 If the filler cap will not engage into the fuel tank housing A B C 1 1 1 22 2 If the cap does not drop fully into the fuel tank opening when the positioning marks (1, 2) line up, or if it does not tighten properly when turned, the base of the cap may be prematurely rotated in relation to the top. Such misalignment can result from handling, cleaning or an improper attempt at tightening. - Illustrations A and B: The base of the cap is prematurely rotated to the closed position and is not in the correct starting position for installation. The tank will not seal in this configuration. Note: in Illustrations A and B, the interior positioning marks (1) are in line with the exterior position marks (2). - Illustration C: The bottom of the cap is in the correct starting position for installation. Note: In Illustration C, the interior positioning mark (1) is under the grip and not in line with the outer position mark (2). To return the base of the cap to the proper starting position for installation: English 1 2 N Turn the cap (with the grip up) until it drops into the fuel tank opening. N Next, turn the cap counterclockwise as far as it will go (approximately 1/4 turn). This will rotate the base of the cap into the correct starting position for installation. The exterior positioning mark (1) on the cap will line up with the "unlocked" symbol (2) on the fuel tank housing. N Then, turn the cap clockwise, closing it normally. N If your fuel cap still does not tighten properly, it may be damaged or broken. Stop using the chain saw and take it to your authorized STIHL dealer for repair. MS 880 33