Causes And Operator Prevention Of Kickback - Oregon CS250 Manuel D'instruction

SAFETY RULES
• Follow instructions for lubricating,
chain tensioning and changing
accessories. Improperly tensioned or
lubricated chain may either break or increase
the chance of kickback.
• Keep handles dry, clean, and free of oil
and grease. Greasy, oily handles are slippery
causing loss of control.
• Cut wood only. Do not use the 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.
• It is recommended that the first
time user should have practical
instruction in the use of the chain saw
and the protective equipment from
an experienced operator. The initial
practice should be cutting logs on a
saw-horse or cradle.
• Other than the wear parts identified in
this manual, the chain saw has no user
serviceable parts.
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
10
OREGON® CORDLESS TOOL SYSTEM
CHAIN SAW MODEL CS250
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. 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 OREGON®.
Incorrect replacement bars and chains may
cause chain breakage and/or kickback.
• Follow the OREGON® sharpening and
maintenance instructions for the saw
chain. Decreasing the depth gauge height
can lead to increased kickback.
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