Kickback
WARNING! Kickbacks are sudden and can
!
be very violent. The power cutter can be
thrown up and back towards the user in a
rotating motion causing serious or even fatal
injury. It is vital to understand what causes
kickback and how to avoid it before using
the machine.
Kickback is the sudden upward motion that can occur if the
blade is pinched or stalled in the kickback zone. Most
kickbacks are small and pose little danger. However a
kickback can also be very violent and throw the power cutter
up and back towards the user in a rotating motion causing
serious or even fatal injury.
Reactive force
A reactive force is always present when cutting. The force
pulls the machine in the opposite direction to the blade
rotation. Most of the time this force is insignificant. If the blade
is pinched or stalled the reactive force will be strong and you
might not be able to control the power cutter.
Kickback zone
Never use the kickback zone of the blade for cutting. 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.
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.
OPERATING
Pinching kickback
Pinching is when the cut closes and pinches the blade. If the
blade is pinched or stalled the reactive force will be 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.
Pipe cutting and pinching
Special care should be taken whet cutting in pipes. If the pipe
is not properly supported and the cut kept open through out
the cut the blade might be pinched in the kickback zone and
cause a severe kickback.
How to aviod kickback
Avoiding kickback is simple.
•
The work piece must always be supported so that the cut
stays open when cutting through. When the cut opens
there is no kickback. If the cut closes and pinches the
blade ther is always a risk of kickback.
•
Take care when inserting the blade in an existing cut.
•
Be alert to movement of the work piece or anything else
that can occur, which could cause the cut to close and
pinch the blade.
Transport and storage
•
Secure the equipment during transportation in order to
avoid transport damage and accidents.
•
For transport and storage of cutting blades, see the
section "Cutting blades".
•
For transport and storage of fuel, see the section "Fuel
handling".
•
Store the equipment in a lockable area so that it is out of
reach of children and unauthorized persons.
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English