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5 IMPORTANT SAFETY INSTRUCTIONS
￭ Some blends of gasoline, particularly winter blends, may
cause tanks to pressurize more quickly or create greater
pressure. At higher altitudes, fuel tank pressurization is
more likely.
How to Avoid Fuel Spraying
WARNING
￭ Removing the fuel cap on a pressurized tank can result in
gasoline, vapors and fumes being forcefully sprayed out
from the fuel tank in all directions. To reduce the risk of
burns, serious injuries or property damage from fuel
spraying:
– Follow the fueling instructions in this chapter.
– Always assume your fuel tank is pressurized.
– Allow the chain saw to cool before removing the fuel
cap.
– If you need to refuel before completing a job, turn off
the machine and allow the engine to cool before
removing the fuel cap.
– 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 minutes
before starting to cool.
￭ After the chain 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
WARNING
￭
￭ 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 without first allowing the saw to cool
adequately and then letting it release any residual
pressure at the vent position (2).
– Never attempt to remove the cap while the engine is
still hot or running.
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