FS 250, FS 250 R
English
8
To reduce the above-mentioned risks 
when using a metal cutting attachment, 
never use a metal cutting attachment 
with a diameter larger than specified. It 
must not be too heavy. It must be 
manufactured from materials of 
adequate quality and its geometry must 
be correct (shape, thickness).
To reduce the risk of injury, a metal 
cutting attachment not manufactured by 
STIHL must not be heavier, thicker, 
have a different shape or a diameter 
larger than the largest metal cutting 
attachment approved by STIHL for this 
power tool model.
Vibrations
Prolonged use of the power tool may 
result in vibration-induced circulation 
problems in the hands (whitefinger 
disease).
No general recommendation can be 
given for the length of usage because it 
depends on several factors.
The period of usage is prolonged by:
– Hand protection (wearing warm 
gloves)
– Work breaks
The period of usage is shortened by:
– Any personal tendency to suffer 
from poor circulation (symptoms: 
frequently cold fingers, tingling 
sensations).
– Low outside temperatures.
– The force with which the handles 
are held (a tight grip restricts 
circulation).
Continual and regular users should 
monitor closely the condition of their 
hands and fingers. If any of the above 
symptoms appear (e.g. tingling 
sensation in fingers), seek medical 
advice.
Maintenance and Repairs
Service the machine regularly. Do not 
attempt any maintenance or repair work 
not described in the instruction manual. 
Have all other work performed by a 
servicing dealer.
STIHL recommends that you have 
servicing and repair work carried out 
exclusively by an authorized STIHL 
servicing dealer. STIHL dealers are 
regularly given the opportunity to attend 
training courses and are supplied with 
the necessary technical information.
Only use high-quality replacement parts 
in order to avoid the risk of accidents 
and damage to the machine. If you have 
any questions in this respect, consult a 
servicing dealer.
STIHL recommends the use of genuine 
STIHL replacement parts. They are 
specifically designed to match your 
model and meet your performance 
requirements.
To reduce the risk of injury, always shut 
off the engine before carrying out any 
maintenance or repairs or cleaning the 
machine. – Exception: Carburetor and 
idle speed adjustments.
Do not turn the engine over on the 
starter with the spark plug boot or spark 
plug removed unless the slide control / 
stop switch is on STOP or 0 since there 
is otherwise a risk of fire from 
uncontained sparking.
To reduce the risk of fire, do not service 
or store your machine near open flames.
Check the fuel filler cap for leaks at 
regular intervals.
Use only a spark plug of the type 
approved by STIHL and make sure it is 
in good condition – see "Specifications".
Inspect the ignition lead (insulation in 
good condition, secure connection).
Check the condition of the muffler.
To reduce the risk of fire and damage to 
hearing, do not operate your machine if 
the muffler is damaged or missing.
Do not touch a hot muffler since burn 
injury will result.
Vibration behavior is influenced by the 
condition of the AV elements – check the 
AV elements at regular intervals.
Symbols on Deflectors
An arrow on the deflector shows the 
correct direction of rotation of the cutting 
attachments.
Some of the following symbols are 
applied to the outside of the deflector to 
indicate the approved combination of 
cutting attachment and deflector.
Deflector may be used 
with mowing heads.