Stihl GS 461, Instruction Manual

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Don not work while standing on a ladder – not on
an insecure support – not over your shoulder
height – not with one hand only – risk of accident!
Keep clear the working area – bear in mind
obstacles, holes and pitches.
Do not work alone – keep within calling distance
of others in case help is needed.
Be particularly alert and cautious when wearing
hearing protection because your ability to hear
warnings (shouts, alarms, etc.) is restricted.
Take breaks when you start getting tired or feel‐
ing fatigue – risk of accidents!
Keep easily combustible materials away from hot
exhaust gases and hot mufflers – risk of fire!
Mufflers with catalytic converters can become
especially hot.
As soon as the engine is running, the
power machine generates toxic
exhaust gas. These gases may be
odorless and invisible and may con‐
tain unburned hydrocarbons and ben‐
zene. Never run the engine indoors or
in poorly ventilated locations, even if
your model is equipped with a cata‐
lytic converter.
To reduce the risk of serious or fatal injury from
breathing toxic fumes, ensure proper ventilation
when working in trenches, hollows or other con‐
fined locations. This reduces the risk of serious
or fatal injury from breathing toxic fumes.
Stop work immediately if you start suffering from
nausea, headaches, impaired vision (e.g. your
field of vision gets smaller), impaired hearing,
dizziness, or impaired concentration – these
symptoms may possibly be the result of too-high
exhaust gas concentration – Risk of accidents!
To reduce the risk of fire, do not smoke while
operating or standing near your power tool. Com‐
bustible fuel vapor may escape from the fuel sys‐
tem.
Examine the diamond abrasive chain periodically
at short intervals, check that they are not
cracked, chipped, check also that there are no
damaged or missing segments, signs of over‐
heating (discoloration).
Never use diamond abrasive chains that are
cracked or have chipped segments. contact your
servicing dealer.
In the event of noticeable changes in cutting
behavior (e. g., increased vibration, reduced cut‐
ting performance), stop work and eliminate the
causes of the changes.
–
Switch off the engine and wait until the dia‐
mond abrasive chain is stationary
–
Check condition and correct tension of dia‐
mond abrasive chain
–
Ensure that the cutting blades are sharp
Never touch the diamond abrasive chain when
the motor is running. If the diamond abrasive
chain becomes jammed by an object, switch off
the engine immediately before attempting to
remove the object – risk of injury!
To change the diamond abrasive chain, switch
off the engine – risk of injury!
If your power tool is subjected to unusually high
loads for which it was not designed (e.g. heavy
impact or a fall), always check that it is in good
condition before continuing work – see also
"Before Starting". Check in particular that the fuel
system has no leaks and the safety equipment is
fully operative. Do not continue operating your
power tool if it is damaged. In case of doubt, con‐
tact a dealer.
Check for correct idling, so that the diamond
abrasive chain stops moving when the throttle
trigger is released. Check and correct the idle
speed setting at regular intervals. Have the
machine repaired by a STIHL servicing dealer if
the diamond abrasive chain continues to run
nevertheless.
2.9 Reactive forces
The most frequently occurring reactive forces are
pull-in and pushback.
2.9.1
Pull-in (A)
241
1BA001 KN
A
When the diamond abrasive chain on the bottom
of the guide bar – overbucking – is jammed or
encounters a solid object, the concrete cutter
may suddenly be drawn forward to the work‐
piece.
English 2 Safety Precautions and Working Techniques
6 0458-761-0121-B