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o) Never use the power tool in the vicinity of
inflammable materials. Sparks can ignite these
materials.
p) Do not use any accessory tools which require
liquid coolant. The use of water or other liquid
coolants may lead to electric shock.
Kickback and corresponding safety
instructions
Kickback is a sudden reaction caused when a
rotating accessory tool, e.g. grinding disc, grinding
plate, etc., catches or jams. Catching or jamming
leads to an abrupt stop of the rotating accessory
tool. If this happens, an uncontrolled power tool
turns rapidly against the direction of rotation of the
accessory tool caught in the blockage.
If, for example, a grinding disc catches or jams in a
workpiece, the edge of the grinding disc projecting
into the workpiece can get caught and break off
the grinding disc or cause a kickback. The grinding
disc can then fly in the direction of the operator or
away from him, depending on the direction of
rotation of the disc at the blockage. This can also
break grinding discs.
A kickback is caused by improper or incorrect use
of the power tool. This can be avoided by taking
proper precautions as described below.
a) Hold the power tool firmly in both hands and
position your body and arms so they can
absorb the force of a kickback. Always use
the additional handle, if available, so that
you have the maximum possible control over
the kickback force or reaction forces at full
speed. By taking adequate precautions, the
operator can stay in control of the kickback
and reaction torques.
b) Never hold your hand close to a rotating
accessory tool. The accessory tool could hit
your hand in the event of a kickback.
c) Avoid having any part of your body in the
region in which the power tool is likely to
move in event of a kickback. The kickback will
force the power tool in the opposite direction to
the direction of rotation of the grinding disc at
the blockage.
PWSA 20-Li E4
d) Take special care when working near corners,
sharp edges, etc. Avoid allowing the acces-
sory tool to bounce back from the workpiece
or jam. The rotating accessory tool is more
likely to jam in corners or sharp edges or if it
rebounds off them. This can cause a loss of
control or kickback.
e) Do not use chains or toothed saw blades.
Such accessories often cause a kickback or
loss of control over the power tool.
Special safety instructions for
grinding and abrasive cutting
a) Use only the grinding accessories approved for
your power tool and the appropriate blade
guard for these grinding tools. Grinding tools
which are not designed for the power tool
cannot be sufficiently shielded and are unsafe.
b) Offset grinding discs must be fitted so that the
grinding surface does not protrude over the
level of the blade guard edge. An improperly
fitted grinding disc which protrudes over the
level of the blade guard edge cannot be prop-
erly guarded.
c) The blade guard must be securely mounted
on the power tool and adjusted to ensure
maximum safety so that the smallest possible
amount of the grinding tool is exposed to the
operator. The blade guard is designed to
protect the operator from fragments, accidental
contact with the grinding tool and sparks that
could ignite clothing.
d) Grinding tools should only be used for the
recommended applications. For example:
Never grind with the side surface of a cutting
disc. Cutting discs are designed to remove
material with the edge of the disc. Any lateral
application of force on these grinding tools can
lead to breakage.
e) Always use an undamaged clamping flange
of the correct size and shape for the selected
grinding disc. Suitable flanges support the
grinding disc and reduce the risk of disc
breakage. Flanges for cutting discs can be
different to flanges for other grinding discs.
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