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Rotational Kickback can happen when the upper tip of the guide bar contacts an
object while the chain is moving (Fig. B). This can cause the chain to dig into the object
and momentarily stop moving. The guide bar is then kicked up and back toward the
operator in a lightning-fast reverse reaction.
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Linear Kickback can happen when the wood on either side of a cut closes in and
pinches the moving saw chain along the top of the guide bar (Fig. C). This can cause the
chain to instantly stop. The chain force is then reversed, causing the saw to move in the
opposite direction, sending the saw straight back toward the operator.
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Pull-In can happen when the moving chain on the bottom of the guide bar hits a
foreign object inside the wood. This can cause the chain to suddenly stop. The saw is
then pulled forward and away from the operator, which could potentially result in the
loss of control of the saw.
Kickback Danger Zone
Saw Chain Direction
Fig. B
Pinch
Fig. C
9
Rotational
Kickback
Linear
Kickback
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