Stihl MSA 160.0 C Instruction Manual page 42

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. The operator
can lose control of the saw and be seriously or
fatally injured.
► Hold the saw firmly with both hands.
► Always keep your body out of the plane of
the cutting attachment.
► Operate the saw as 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.
42
4.8.2 Pull-in
The saw is pulled away from the operator when
the bottom of the bar is used for cutting.
WARNING
■ If the rotating chain makes contact with a hard
object and is suddenly pinched, the saw is
abruptly jerked away from the operator. The
operator can lose control of the saw and be
seriously or fatally injured.
► Hold the saw firmly with both hands.
► Operate the saw as described in this
instruction manual.
► Keep the guide bar straight in the cut.
► Apply the spiked bumper properly.
► Always cut with the chain running at full
speed.
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.
► Operate the saw as described in this
instruction manual.
► Keep the guide bar straight in the cut.
► Always cut with the chain running at full
speed.
4 Safety Precautions
0458-024-9801-A