Ribimex Ribitech PRBAT20 Mode D'emploi page 25

3.4- Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged rotating disk, backing pad, brush or any other
accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the
uncontrolled power tool to be forced in the direction opposite of the accessory's rotation at the point of
the binding.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is
entering into the pinch point can dig into the surface of the material causing the wheel to climb out or
kick out. The wheel may either jump toward or away from the operator, depending on direction of the
wheel's movement at the point of pinching. Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can
be avoided by taking proper precautions as given below.
a- Maintain a firm grip on the power tool and position your body and arms to allow you to resist
kickback forces. Always use auxiliary handle, if provided, for maximum control over kickback or
torque reaction during start-up. The operator can control torque reactions or kickback forces, if
proper precautions are taken.
b- Never place your hand near the rotating accessory. The accessory may kickback over your hand.
c- Do not position your body in the area where the power tool will move if kickback occurs.
Kickback will propel the tool in the direction opposite to the wheel's movement at the point of snagging.
d- Use special care when working corners, sharp edges, etc. Avoid bouncing and snagging the
accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause
loss of control or kickback.
e- Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent
kickback and loss of control over the power tool.
3.5- Specific Safety Instructions for grinding and cutting operation
a- Use only disk types that are recommended for your tool and the specific guard designed for the
selected disk. Disks for which the tool was not designed cannot be adequately guarded and are unsafe.
b- The guard must be securely attached to the power tool and positioned for maximum safety, so
the least amount of wheel is exposed towards the operator. The guard helps to protect operator from
broken wheel fragments and accidental contact with wheel and sparks that could ignite clothing.
c- Disks must be used only for their recommended applications. For example: do not grind with the
side of the cut-off disk. Abrasive cut-off disks are intended for peripheral grinding; side forces applied
to these disks may cause them to shatter.
d- Always use undamaged disk flanges that are of correct size and shape for your selected disk.
Proper disk flanges support the disk thus reducing the possibility of disk breakage. Flanges for cut-off
disks may be different from grinding disk flanges.
e- Do not use worn out disks from larger power tools. Disks intended for larger power tools are not
suitable for the higher speed of a smaller tool and may burst.
3.6- Specific Safety Instructions for abrasive cutting operations
a- Do not "jam" the cut-off disk or apply excessive pressure. Do not attempt to make an excessive
depth cut. Overstressing the disk increases the loading and susceptibility to twisting or binding of the
disk in the cut and the possibility of kickback or disk breakage.
b- Do not position your body in line with and behind the rotating disk. When the disk, at the point of
operation, is moving away from your body, the possible kickback may propel the rotating disk and the
tool directly at you.
c- When the disk is binding or when you interrupt a cut for any reason, switch off the power tool
and hold the power tool motionless until the rotating disk comes to a complete stop. Never
attempt to remove the cut-off disk from the cut while the disk is still in motion, otherwise
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