9
injury and should never be done.
3. Hold the power tool by insulated
gripping surfaces only, because the
saw chain may contact hidden wiring
or its own cord. Saw chains contacting
a live wire may make exposed metal parts
of the power tool live and could give the
operator an electric shock.
4. Wear safety glasses and hearing
protection. Further protective
equipment for head, hands, legs
and feet is recommended. Adequate
protective clothing will reduce personal
injury by flying debris or accidental contact
with the saw chain.
5. Do not operate a chain saw in a tree.
Operation of a chain saw while up in a tree
may result in personal injury.
6. Always keep proper footing and
operate the chain saw only when
standing on fixed, secure and level
surface. Slippery or unstable surfaces
such as ladders may cause a loss of
balance or control of the chain saw.
7. When cutting a limb that is under
tension be alert for spring back. When
the tension in the wood fibers is released the
spring loaded limb may strike the operator
and/or throw the chain saw out of control.
8. Use extreme caution when cutting
brush and saplings. The slender material
may catch the saw chain and be whipped
toward you or pull you off balance.
9. Carry the chain saw by the front
handle with the chain saw switched
off and away from your body. When
transporting or storing the chain saw
always apply the guide bar cover.
Proper handling of the chain saw will
reduce the likelihood of accidental contact
with the moving saw chain.
10.Follow instructions for lubricating,
chain tensioning and changing
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 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.
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 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 conditions
and can be avoided by taking proper
precautions as given below:
- 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.
- Do not overreach and do not cut
above shoulder height. This helps
prevent unintended tip contact and
enables better control of the chain saw in
unexpected situations.
- 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 sharpening
and maintenance instructions for the
saw chain. Decreasing the depth gauge
height can lead to increased kickback.
To Next Page
Loading...
