Stihl GS 461 Instruction Manual page 8

English
Your power tool produces
toxic exhaust fumes as
soon as the engine is
running. These gases
may be colorless and
odorless and may contain
unburnt hydrocarbons
and benzene. Never work
with the engine-driven
device in closed or poorly
vented rooms – even not
with devices equipped
with a catalyst.
Ensure proper ventilation when working
in trenches, hollows or other confined
areas. Toxic fumes can kill!
With sick feeling, headache, eye defect
(for example, shrinking field of vision),
hearing impairment, dizziness, fading
powers of concentration, stop working
immediately – such symptoms may be
caused, among others, by high exhaust
gas concentration – risk of accident!
No smoking when working with or near
the machine - risk of fire! Combustible
fuel vapour may escape from the fuel
system.
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 overheating
(discoloration).
Never use diamond abrasive chains that
are cracked or have chipped segments.
Contact your servicing dealer.
6
In the event of noticeable changes in
cutting behavior (e. g., increased
vibration, reduced cutting performance),
stop work and eliminate the causes of
the changes.
Switch off the engine and wait until
–
the diamond abrasive chain is
stationary
Check condition and correct tension
–
of diamond abrasive chain
Check sharpness
–
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 the machine 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 – refer also to the
section "Before starting". Check the fuel
system for leaks and make sure the
safety devices are working properly.
Never continue using a power tool that is
not in perfect working order. In case of
doubt, have the unit checked by your
servicing dealer.
Check for correct idling, so that the
diamond abrasive chain stops moving
when the throttle trigger is released.
Check and/or correct the idle setting
regularly. Have the machine repaired by
a STIHL servicing dealer if the diamond
abrasive chain continues to run
nevertheless.
Reactive forces
The most frequently occurring reactive
forces are pull-in and pushback.
Pull-in (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
workpiece.
Pushback (B)
When the diamond abrasive chain on
the top of the guide bar – underbucking
– is jammed or encounters a solid object,
the concrete cutter may suddenly be
driven straight back toward the operator.
A
B
GS 461