Stihl MS 194 T Instruction Manual page 13

8 Mixing Fuel and Refueling the Chainsaw
engine oil in order to maintain emission limits
throughout the machine's service life.
► Make sure that the octane number of the gas‐
oline is at least 90 RON and the ethanol con‐
tent is not more than 10%.
► Make sure the two-stroke engine oil you are
using meets the requirements.
► Depending on the required amount of fuel,
determine the correct amounts of two-stroke
engine oil and gasoline in a mix ratio of 50:1.
Examples for fuel mixes:
– 1 liter gasoline, 20 ml two-stroke engine oil
– 3 liters gasoline, 60 ml two-stroke engine oil
– 5 liters gasoline, 100 ml two-stroke engine
oil
► Pour two-stroke engine oil into a clean
approved fuel canister first and then add gaso‐
line.
► Thoroughly mix the fuel.
8.2 Fueling the Saw
► Shut off the engine and engage the chain
brake.
► Allow chainsaw to cool down.
► Place your chainsaw on a level surface so that
the fuel tank cap faces up.
► Use a damp cloth to clean the tank cap and
the area around it.
► Swing the grip on the fuel tank cap to the verti‐
cal position.
WARNING
■ The chainsaw becomes hot during operation,
or in a very hot environment. Depending on
the type of fuel, altitude, ambient temperature
and the temperature of the saw, the fuel
expands and can cause a pressure build-up in
the tank. Fuel may escape as a spray and
ignite when the fuel tank cap is opened. This
can result in serious injuries and damage to
property.
► Allow the saw to cool down before opening
the tank cap.
► Open the tank cap slowly in stages.
0458-568-8321-B
► Turn the fuel tank cap about 1/8 of a turn
counterclockwise.
If the fuel tank is under pressure, you will hear
pressure being released.
► When the tank is no longer under pressure:
Turn the tank cap counterclockwise until the
marks on the cap and fuel tank are in align‐
ment.
► Remove the fuel tank cap.
NOTICE
■ Bright light, sunlight and extreme tempera‐
tures can cause the fuel mix to separate much
faster. The saw can be damaged if it is used
with a fuel mix that has become separated.
► Thoroughly mix the fuel.
► Do not use fuel mix that has been stored for
more than 30 days.
► Fill the tank to within no more than 15 mm
of the brim, taking care not to spill any fuel.
► If the grip on the fuel tank cap has dropped
into the closed position: Raise the grip until it
is vertical.
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2
► Place the cap in the filler opening so that mark
(1) lines up with mark (2).
► Press the cap down and rotate it clockwise as
far as stop.
The cap snaps into place. The mark (1) is in
line with mark (4) and points to mark (3).
► Check to see if the fuel tank cap can be pulled
upwards and off.
► If the fuel tank cap cannot be pulled upwards
and off: Fold the grip flush with the top of the
cap.
The fuel tank is closed.
If the fuel tank cap can be pulled upwards and
off, perform the following steps:
► Place the fuel tank cap in the filler opening – in
any position.
English
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