FC 95, FC 110
English
17
together with the thrust plate (4)
until the pin slips into position and
blocks the shaft.
N Fit the combination wrench (5) on
the screw (6).
N Loosen the screw clockwise (left-
hand thread) and take it out.
N Remove the thrust washer (4).
N Position the blade (9) on the thrust
plate (10).
WARNING
Collar (see arrow) must engage the
blade's mounting hole.
N Fit the thrust washer on the
shaft (11) and block the shaft.
N Fit the screw (6) in the shaft
counterclockwise and tighten it
down firmly.
The STIHL 4-MIX engine features
mixture lubrication and must be run on a
fuel mixture of gasoline and engine oil.
It operates otherwise on the 4-stroke
principle.
This engine is certified to operate on
unleaded gasoline and the STIHL two-
stroke engine oil at a mix ratio of 50:1.
Your engine requires a mixture of high-
quality gasoline and two-stroke air
cooled engine oil.
Use mid-grade unleaded gasoline with a
minimum octane rating of 89 ((R+M)/2)
and no more than 10% ethanol content.
Fuel with a lower octane rating may
increase engine temperatures. This, in
turn, increases the risk of piston seizure
and damage to the engine.
The chemical composition of the fuel is
also important. Some fuel additives not
only detrimentally affect elastomers
(carburetor diaphragms, oil seals, fuel
lines, etc.), but magnesium castings and
catalytic converters as well. This could
cause running problems or even
damage the engine. For this reason
STIHL recommends that you use only
high-quality unleaded gasoline!
Gasoline with an ethanol content of
more than 10% can cause running
problems and major damage in engines
and should not be used.
The ethanol content in gasoline affects
engine running speed – it may be
necessary to readjust the carburetor if
you use fuels with various ethanol
contents.
WARNING
To reduce the risk of personal injury
from loss of control and / or contact with
the running cutting tool, do not use your
4-MIX Engine Fuel
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