28 – Canadian
WORKING TECHNIQUES
How to avoid kickback
What is kickback?
The word kickback is used to describe the sudden reaction
that causes the chain saw and bar to jump off an object when
the upper quadrant of the tip of the bar, known as the kickback
zone, touches an object.
Kickback always occurs in the cutting plane of the bar.
Normally the chain saw and bar are thrown backwards and
upwards towards the user. However, the chain saw may move
in a different direction depending on the way it was being used
when the kickback zone of the bar touched the object.
Kickback only occurs if the kickback zone of the bar touches
an object.
Limbing
Make sure that you can stand and move about safely. Work on
the left side of the trunk. Work as close as possible to the
chain saw for maximum control. If possible, let the weight of
the chain saw rest on the trunk.
Keep the trunk between you and the chain saw as you move
along the trunk.
Cutting the trunk into logs
See instructions under the heading Basic cutting technique.
!
WARNING! Kickback can happen very
suddenly and violently; kicking the chain
saw, bar and chain back at the user. If this
happens when the chain is moving it can
cause very serious, even fatal injuries. It is
vital you understand what causes kickback
and that you can avoid it by taking care and
using the right working technique.
!
WARNING! A majority of kickback accidents
occur during limbing. Do not use the
kickback zone of the guide bar. Be extremely
cautious and avoid contacting the log, other
limbs or objects with the nose of the guide
bar. Be extremely cautious of limbs under
tension. They can spring back toward you
and cause loss of control resulting in injury.
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