► Push the hand guard away from the front han‐
dle with your left hand.
The hand guard engages with an audible click.
The chain brake is engaged.
7.2 Disengaging the Chain Brake
► Pull the hand guard toward the front handle
with your left hand.
The hand guard engages with an audible click.
The chain brake is disengaged.
8 Mixing Fuel and Refueling
the Chainsaw
8.1 Mixing fuel
The fuel required for this chainsaw is a mixture of
two-stroke engine oil and gasoline, in a mixing
ratio of 1:50.
STIHL recommends you use STIHL MotoMix.
If you mix the fuel yourself, use only STIHL two-
stroke engine oil or another high-performance
engine oil in accordance with JASO FB, JASO
FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L-
EGD.
STIHL specifies STIHL HP Ultra two-stroke
engine oil or an equivalent high-performance
engine oil in order to maintain emission limits
over 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% (for Brazil: 27%).
► Make sure the two-stroke engine oil you are
using meets the requirements.
► Depending on the desired amount of fuel,
determine the correct amounts of two-stroke
engine oil and gasoline in a mixing ratio of
1:50. Examples for fuel mixes:
–
20 ml Two-stroke engine oil, 1 l gasoline
–
60 ml Two-stroke engine oil, 3 l gasoline
–
100 ml Two-stroke engine oil, 5 l gasoline
► Pour two-stroke engine oil into a clean
approved fuel canister first and then add gaso‐
line.
► Thoroughly mix the fuel before topping up.
8.2 Filling up the Chainsaw with
Fuel
► Shut off the engine and engage the chain
brake.
► Allow the 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 fuel tank cap
and the area around it.
► Fold out the handle on the fuel tank cap.
WARNING
■ The chainsaw will become hot during opera‐
tion, or in a very hot environment. Depending
on the type of fuel, altitude, ambient tempera‐
ture and the temperature of the saw, the fuel
expands and can cause a build-up of pressure
in the tank. Fuel may spray out and ignite
when the fuel tank cap is opened. The user
may be seriously injured and property damage
may occur.
► Allow the chainsaw to cool down before
opening the fuel tank cap.
► Open the fuel tank cap slowly and not all at
once.
► Turn the fuel tank cap about 1/8-of-a-turn
counterclockwise.
If the fuel tank is under pressure, you will hear
the overpressure being released.
► When the tank is no longer under pressure:
Turn the fuel tank cap counterclockwise until
the marks on the cap and fuel tank are in
alignment.
► Remove the fuel tank cap.
8 Mixing Fuel and Refueling the Chainsaw English
0458-221-0121-B 15
To Next Page
Loading...
