Stihl MS 171 Instruction Manual page 21

12 Fueling
► Remove the filler cap
12.3.2 Filling with fuel
Take care not to spill fuel while fueling and do
not overfill the tank.
STIHL recommends using the STIHL filling sys‐
tem for fuel (special accessory).
► Fill with fuel
12.3.3 Closing
Bracket is in an upright position:
► Position filler cap – position markings on the
filler cap and the filler port must be aligned
with each other.
► Push the filler cap down as far as it will go
► Hold the filler cap down and turn it clockwise
until it engages
► Fold down the bracket as far as it will go
0458-533-0121-E
12.3.4 Checking the lock
– The lug on the bracket must engage entirely in
the recess (arrow)
► Grip the filler cap – if the filler cap cannot be
moved or removed, then it is closed properly
12.3.5 If the filler cap can be moved or
removed
The base of the filler cap is twisted in relation to
the upper part.
left: Base of filler cap twisted
right: Base of filler cap correctly posi‐
tioned
English
21