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KICKBACKSPECiFiCS
WARNING: K okbaokoanheadto
dangerous ioss of
control of the chain saw and result in serious
cause of most accidents.
KICKBACK may occur when the NOSE or TIP of the
guide bar touches an object, or when wood doses in and
pinches the saw chain in the cut.
Tip contact in some cases may cause a lightning-fast
reverse reaction, kicking the guide bar up and back
toward the operator.
Any of these reactions may cause you to lose control of
the saw, which could result in serious personal injury.
Rotationa_ Kickback
Rotational Kickback can occur when the moving
chain contacts an object at the upper tip of the guide
bar. This contact can cause the chain to dig into the
object, which stops the chain for an instant. The
result is a lightning fast, reverse reaction which kicks
the guide bar up and back toward the operator.
K_CKBACK SPECiFiCS
Pinch Kickback
Pinch kickback can occur when the saw chain is pinched
aiong the bottom or top of the guide bar.
When pinched on the bottom of the guide bar, it may puii
the saw forward, away from the operator
When pinched aiong he top of the guide bar, it may push
the guide bar rapidiy back toward the operator.
--m- A
A : Puii --_B"
B = Solid objects
B
F_g.2
A
A
A = Kickback path
B = Kickback reaction zone
F_g. 1