OPERATING
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.
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.
English – 15