Stihl MS 250C Instruction Manual page 9

In hot environments, cooling will
–
take longer.
The engine is air cooled. When it is
–
shut off, cooling air is no longer
drawn across the cylinder and the
engine temperature will rise for
several minues before starting to
cool.
After the saw has cooled appropriately,
follow the safety instructions in this
chapter for removing the cap. Never
remove the cap by turning it directly to
the open position. First check for
residual pressure by turning the cap
slowly to the vent position,
approximately 1/8 turn counter-
clockwise. Use only good quality fuel
that is appropriate for the season
(summer v. winter blends). Some
blends of gasoline, particularly winter
blends, are more volatile and can
contribute to fuel spraying.
Removing the Toolless Fuel Cap: Turn
Slowly and Stop in the Vent Position
MS 250
WARNING
1 2
After allowing the chain saw to cool,
remove the fuel filler cap slowly and
carefully to allow any remaining
pressure build-up in the tank to release:
Flip up the grip and press the cap
–
down firmly (1).
While maintaining steady,
–
downward pressure, turn the cap
slowly counter-clockwise to the vent
position (2), approximately a
1/8 turn of the cap.
If any significant venting occurs,
–
immediately re-seal the tank by
turning the cap clockwise to the
closed position. Allow the saw to
cool further before attempting to
open the tank.
Turn the cap to the open position (3)
–
only after the contents of the tank
are no longer under pressure. In the
open position, the exterior
positioning mark (4) on the cap will
line up with the "unlocked"
symbol (5) on the fuel tank housing.
Never remove the cap by turning it
–
directly to the open position. First
allow the saw to cool adequately
and then release any residual
3
pressure at the vent position (2).
4
Never attempt to remove the cap
–
while the engine is still hot or
running.
5
English
7