FS 40, FS 40 C, FS 50, FS 50 C
English
21
N Turn the cap counterclockwise 
(approx. 1/4 turn).
N Remove fuel filler cap.
Refueling
Take care not to spill fuel while fueling 
and do not overfill the tank.
Closing the toolless filler cap
With grip in an upright position:
N Insert the cap – positioning marks 
on the cap and the fuel tank opening 
must line up.
N The cap should drop fully into the 
opening in this position.
N While pressing the cap down, twist it 
firmly clockwise as far as it will go 
(approx. 1/4 turn).
N Fold down the grip.
Checking for proper closure
N The lug on the grip must engage 
entirely in the recess (arrow), and 
the grip must lie completely flush 
with the top of the cap.
N Grip the cap and check for 
tightness.
N If the cap can be moved, it is not 
properly installed.
Misalignment of the cap parts
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 rotated out 
of position vis-à-vis the top.
N Such misalignment can result from 
handling, cleaning or an improper 
attempt at tightening.