Rotational kickback
A rotational kickback occurs when the cutting blade
does not move freely in the kickback zone.
Climbing kickback
If the kickback zone is used for cutting, the reactive
force drives the blade to climb up in the cut. Do not use
the kickback zone. Use the lower quadrant of the blade
to avoid climbing kickback.
Pinching kickback
Pinching is when the cut closes and pinches the blade. If
the blade is pinched or stalled the reactive force will be
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strong and you might not be able to control the power
cutter.
If the blade is pinched or stalled in the kickback zone,
the reactive force will push the power cutter up and back
towards the user in a rotating motion causing serious or
even fatal injury. Be alert for potential movement of the
work piece. If the work piece is not properly supported
and shifts as you cut, it might pinch the blade and cause
a kick back.
Pipe cutting
Special care should be taken when cutting in pipes. If
the pipe is not properly supported and the cut kept open
throughout the cutting, the blade might be pinched. Be
especially alert when cutting a pipe with a belled end or
a pipe in a trench that, if not properly supported, may
sag and pinch the blade.
If the pipe is allowed to sag and close the cut, the blade
will be pinched in the kick back zone and a severe kick
back might develop. If the pipe is properly supported,
the end of the pipe will move downward, the cut will
open and no pinching will occur.
Secure the pipe so it does not move or roll during
cutting. Make sure that the cut opens to avoid pinching
the blade.
1635 - 003 - 20.08.2021