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Improperly tensioned or lubricated
chain may either break or increase the
chance for kickback.
k) Keep handles dry, clean, and free
from oil and grease. Greasy, oily
handles are slippery causing loss of
control.
Cut wood only. Do not use chain
l)
saw for purposes not intended. For
example: do not use chain saw for
cutting plastic, masonry or non-
wood building materials. Use of the
chain saw for operations different than
intended could result in a hazardous
situation.
m) Hold the power tool only on the
insulated handle surfaces, as the
saw chain can come into contact
with concealed power lines. Contact
between the saw chain and a live wire
can make metal parts of the equip-
ment live and cause an electric shock.
8) CAUSES AND OPERATOR
PREVENTION OF KICKBACK
Beware of kickback! Be careful
of kickback of the machine dur-
ing work. There is danger of injury
here. You can avoid kickbacks by
exercising caution and using a cor-
pic 1
rect sawing technique.
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. (see pic 1. b ).
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. (see pic 1/. a).
Either of these reactions may cause you to
lose control of the saw which could result
in serious personal injury. Do not rely ex-
clusively upon the safety devices built into
your saw. As a chain saw user, you should
take several steps to keep your cutting jobs
free from accident or injury.
Kickback is the result of tool misuse and/
or incorrect operating procedures or condi-
tions and can be avoided by taking proper
precautions as given below:
a) 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 chain saw
b) Do not overreach and do not cut
above shoulder height. This helps pre-
vent unintended tip contact and enables
better control of the chain saw in unex-
pected situations.
c) Only use replacement bars and
chains specified by the manufac-
turer. Incorrect replacement bars and
chains may cause chain breakage and/
or kickback.
d) Follow the manufacturer´s sharpen-
ing and maintenance instructions
for the saw chain. Decreasing the
depth gauge height can lead to in-
creased kickback.
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