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accessories. Improperly tensioned or
lubricated chain may either break or
increase the chance for kickback.
11.
Keep handles dry, clean, and free
from oil and grease. Greasy, oily
handles are slippery, causing loss of
control.
12.
Cut wood only. Do not use chain
saw for purposes not intended. For
example: do not use chainsaws for
cutting plastic, masonry or non-wood
building materials. Use of the chainsaw
for operations different than intended
could result in a hazardous situation.
Causes and Operator
Prevention of Kickback:
Kickback may occur when the nose or
tip of the guide bar touches an object, or
when the wood closes in and pinches
the saw chain in the cut.
Tip contact in some cases may cause a
sudden reverse reaction, kicking the
guide bar up and back towards the
operator.
Pinching the saw chain along the top of
the guide bar may push the guide bar
rapidly back towards the operator.
Either of these reactions may cause you
to lose control of the saw which could
result in serious personal injury. Do not
rely exclusively upon the safety devices
9
built into your saw. As a chain saw user,
you should take several steps to keep
your cutting jobs free from accidents or
injury.
Kickback is the result of tool misuse
and/or incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below:
1.
Maintain a firm grip, with thumbs
and fingers encircling the chain saw
handles, with both hands on the saw
and position your body and arm to allow
you to resist kickback forces. Kickback
forces can be controlled by the operator,
if proper precautions are taken. Do not
let go of the chainsaw.
2.
Do not overreach and do not cut
above shoulder height. This helps
prevent unintended tip contact and
enables better control of the chainsaw in
unexpected situations.
3.
Only use replacement bars and
chains specified by the manufacturer.
Incorrect replacement bars and chains
may cause chain breakage and/or
kickback.
Follow the manufacturer's
4.
sharpening and maintenance
instructions for the saw chain.
Decreasing the depth gauge height can
lead to increased kickback.
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