Meister KB135M Traduction Du Manuel D'utilisation Original page 53

or jamming leads to an abrupt stop
of the rotating tool bit. This causes
an uncontrolled power tool to be
accelerated in the opposite direction to
that of the rotating power tool.
For example, if a cutting disc becomes
stuck or jammed in a workpiece, the
edge of the cutting disc inserted into the
workpiece may get caught causing the
cutting disc to break away or resulting
in kickback. The cutting disc will then
either move towards or away from the
operator, depending on the direction of
rotation of the disc at the point where it
is jammed. This may also cause cutting
discs to break.
A kickback is a consequence of
incorrect or faulty operation of the
power tool. It can be prevented
by taking the following suitable
precautions:
a Hold the electrical tool securely
with both hands and position
your body and arms in such a
way that you are able to absorb
any kickback forces. The operator
can control kickback or reaction
forces if they take appropriate safety
precautions.
b Be especially careful around
corners, sharp edges etc. Prevent
insert tool bits from bouncing
off the workpiece and becoming
jammed. The rotating tool bit tends
to become jammed at corners, sharp
edges or when it rebounds. This will
lead to a loss of control or kickback.
c Do not use toothed saw blades.
Such tools will often cause kickback
or loss of control over the power
tool.
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d Always insert the tool bit into the
material in the same direction in
which the cutting edge leaves the
material (the same direction as the
chips or shavings are thrown out).
Inserting the power tool in the wrong
direction can cause the cutting edge
to break out of the workpiece, pulling
the power tool in this feed direction.
e The workpiece should be firmly
clamped when using rotary files,
cutting discs, high­speed routers
or carbide routing tools. Even slight
skewing in the groove will cause
these tool bits to catch and can
produce a kickback. If a cutting disc
gets caught it will usually break. If
rotary files and high-speed or carbide
routers get caught, the tool bit can
jump out of the groove and lead to a
loss of control over the power tool.
Particular safety instructions for
sanding and abrasive cutting:
a Only use grinding wheels permitted
for use with your power tool and
for the recommended applications.
Example: Never grind using the side
surface of a cutting disc. Cutting
discs are designed to be used to
remove material with the edge of the
disc. Lateral forces working on these
grinding wheels may break them.
b For tapered and straight threaded
pencils only use undamaged
mandrels of the correct size and
length without undercut on the
shoulder. Suitable mandrels reduce
the risk of a fracture.
c Avoid blocking the cutting wheel or
employing too great a pressure. Do
not execute any excessively deep
cuts. Overloading the cutting wheel
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