Fuel Mixture And Refueling - Stihl MS 500i W Instruction Manual

4 Safety Precautions
4.7

Fuel Mixture and Refueling

WARNING
￭ This chainsaw requires a fuel mixture of gasoline and two-
stroke engine oil. Fuel mixture and gasoline are extremely
flammable. If fuel mixture or gasoline make contact with
open fire or hot objects, they can cause a fire or
explosions. This can result in serious or fatal injuries and
damage to property.
► Protect fuel mixture and gasoline from heat and fire.
► Do not spill fuel mixture and gasoline.
► Do not smoke.
► Never refuel near a fire.
► Shut off the engine and allow it to cool down before
refueling.
► Start the engine at least 3 meters from the fueling spot,
outdoors only.
￭ Inhaling fuel fumes and gasoline fumes can have toxic
effects.
► Avoid inhaling fuel fumes or gasoline fumes.
► Refuel in a well-ventilated location.
￭ 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.
0458-809-0121-A
￭ Clothing that has been in contact with fuel or gasoline is
more easily flammable. This can result in serious or fatal
injuries and damage to property.
► If your clothing comes into contact with fuel or gasoline:
Change your clothing.
￭ Fuel, gasoline and two-stroke engine oil can harm the
environment.
► Do not spill fuel, gasoline or two-stroke engine oil.
► Fuel, gasoline and two-stroke engine oil can harm the
environment.
￭ Fuel, gasoline or two-stroke engine oil can cause irritation
if they come into direct contact with the skin or eyes.
► Avoid contact with fuel, gasoline and two-stroke engine
oil.
► In case of contact with the skin: Wash affected areas
with plenty of water and soap.
► In case of contact with the eyes: Rinse eyes with plenty
of water for at least 15 minutes and seek medical
advice.
￭ The saw's ignition system produces sparks. Unconfined
sparks may cause a fire or an explosion in an easily
combustible or explosive environment. This can result in
serious or fatal injuries and damage to property.
► Use the spark plugs described in this instruction
manual.
► Insert and tighten down the spark plug.
► Connect the spark plug boot and press it down firmly.
￭ The saw can be damaged if it is run on a fuel mixture
consisting of unsuitable gasoline or an unsuitable two-
stroke engine oil or if an incorrect mix ratio of gasoline and
two-stroke engine oil is used.
► Mix the fuel as described in this instruction manual.
￭ The mixture of gasoline and two-stroke engine oil can
separate if it is stored for a long period. The saw can be
damaged if it is used with a fuel mix that has separated.
► Before refueling the saw: Thoroughly mix the fuel.
► Use a mixture of gasoline and two-stroke engine oil that
is not older than 30 days (STIHL MotoMix: 2 years).
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