7 Adjusting Trimmer for User
7.1 Fitting and Adjusting the Carry‐
ing System
► Put the carrying system on your back.
► Close buckle (1) on the waist belt.
► Tighten the straps until the waist belt fits
snugly on your hips and the back padding is
against your back.
► Thread the end of the waist belt through the
loop (2).
7.2 Removing the Carrying System
► Shut off the engine.
► Loosen the straps.
► Open the buckle on the waist belt.
► Take the trimmer off your back.
8 Mixing Fuel and Refueling
the Brushcutter
8.1 Mixing fuel
The fuel required for this trimmer is a mixture of
gasoline and two-stroke engine oil, 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 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.
► Stir the fuel before topping up.
8.2 Fueling the brushcutter
► Shut off the engine.
► Place your brushcutter 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.
► Turn the tank cap counterclockwise until it can
be removed.
► Remove the fuel tank cap.
NOTICE
■ Exposure to light, direct sunlight and extreme
temperatures may accelerate fuel separation
or aging. The brushcutter can be damaged if it
is used with a fuel mix that has become sepa‐
rated or has aged.
►
Thoroughly mix the fuel.
► Do not top up with fuel stored for more than
30 days (STIHL MotoMix: 5 years).
► When topping up, ensure that no fuel is spil‐
led and that the fuel level remains at least
15 mm under the edge of the tank.
English 7 Adjusting Trimmer for User
14 0458-840-0101-A
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