Stihl MSA 161 T Notice D'emploi page 36

English
4.8 Reactive Forces
4.8.1 Kickback
Kickback can be caused for the following rea‐
sons:
– The rotating saw chain in the upper quadrant
of the bar nose makes contact with a hard
object and is suddenly braked.
– The rotating saw chain is pinched at the bar
nose.
The chain brake cannot prevent kickback.
WARNING
If kickback occurs, the saw can be thrown up
■
in the direction of the operator. Due to the spe‐
cial handle design (closely spaced handles)
there is a risk of the operator losing control of
the chainsaw and sustaining serious or fatal
injuries.
► Hold the saw firmly with both hands.
► Always keep your body out of the plane of
the cutting attachment.
► Use the working techniques described in
this instruction manual.
► Do not cut with the upper quadrant of the
bar nose.
► Always cut with a properly sharpened and
tensioned saw chain.
► Use a reduced kickback saw chain.
► Use a guide bar with a narrow radius nose.
► Always cut with the chain running at full
speed.
36
4.8.2 Pull-in
The chainsaw is pulled away from the operator
when the bottom of the guide bar is used for cut‐
ting.
WARNING
■ If the rotating saw chain makes contact with a
hard object and is suddenly slowed down, the
chainsaw may be abruptly jerked away from
the operator. The operator can lose control of
the chainsaw and be seriously or fatally
injured.
► Hold the chainsaw firmly with both hands.
► Work as described in this User Manual.
► Keep the guide bar straight in the cut.
► Position the spiked bumper properly.
► Always cut at full throttle.
The chainsaw is standard equipped without the
spiked bumper. STIHL recommends retrofitting
with a spike bumper for working on resistant
wood so that the chainsaw can be positioned
safely.
4.8.3 Pushback
The saw is pushed back toward the operator
when the top of the bar is used for cutting.
WARNING
■ If the rotating chain makes contact with a hard
object and is suddenly pinched, the saw can
be abruptly pushed back toward the operator.
The operator can lose control of the saw and
be seriously or fatally injured.
► Hold the saw firmly with both hands.
4 Safety Precautions
0458-791-9621-D