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CAUTION! If the saw chain is TOO LOOSE or TOO TIGHT the
V-drive wheel, chain bar, chain and crank shaft bearing will
suffer premature wear. Right Fig. shows the correct tension
A (when cold) and tension B (when warm). Fig. C shows a
chain that is too loose.
Chain brake / hand guard
This chain saw is equipped with a Chain brake/Hand guard which
stops a moving chain in milliseconds,helping to reduce the hazard of
kickback, a fast upward motion of the guide bar which occurs when
the saw chain at the nose of the bar accidentally strikes an object or
is pinched in the cut. The Hand Guard also protects your left hand in
the event it slips off the front handle.
The chain brake is a safety feature which is activated if pressure
is applied against the guard or when, in the event of kickback, the
operator’s hand strikes the lever. When the chain brake is activated,
chain movement abruptly stops and the power supply to the motor
is immediately cut off.
The purpose of the chain brake is to reduce the possibility of injury
due to kickback. The chain brake cannot, however, provide the
measure of intended protection if the saw is carelessly operated.
The chain brake is disengaged (chain can move) when the brake
is pulled back and locked. This is the normal running position. The
chain brake is engaged (chain cannot move) when the brake is in the
forward position.
CAUTION: A loose chain can jump off the bar while you are
cutting, as well as wear the bar and chain. A chain that is too
tight can damage the saw. Either way, if a chain is too loose or
too tight, it could cause serious personal injury.
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