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4 Safety Precautions
■ If the tree does not fall all the way to the
ground or gets caught on another tree, the
operator cannot finish the operation in a con‐
trolled manner.
► Stop the felling operation and use a cable
winch or suitable vehicle to pull the tree to
the ground.
4.9
Reactive Forces
4.9.1
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.
► 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.
0458-784-0121-C
► Always cut with the chain running at full
speed.
4.9.2
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.
4.9.3
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.
English
9
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