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o) Do not use accessories that require liquid
coolants. Using water or other liquid coolants may
result in electrocution or shock.
3.2
Kickback and related warnings
Kickback is a sudden reaction to a pinched or
snagged rotating wheel, 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 with both hands 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. Accessory may kickback over your
hand.
c) Do not position your body in the area where
power tool will move if kickback occurs.
Kickback will propel the tool in 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, segmented diamond wheel with a
peripheral gap greater than 10 mm or toothed
saw blade. Such blades create frequent kickback
and loss of control.
3.3
Safety warnings specific for sanding
operations:
a) Use properly sized sanding disc paper.
Follow the manufacturer's recommendations
when selecting sanding paper. Larger sanding
paper extending too far beyond the sanding pad
presents a laceration hazard and may cause
snagging, tearing of the disc or kickback.
3.4
Safety warnings specific for polishing
operations:
a) Do not allow any loose portion of the
polishing bonnet or its attachment strings to
spin freely. Tuck away or trim any loose
6
attachment strings. Loose and spinning
attachment strings can entangle your fingers or
snag on the workpiece.
3.5
Safety warnings specific for wire
brushing operations:
a) Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the wires by applying excessive
load to the brush. The wire bristles can easily
penetrate light clothing and/or skin.
b) If the use of a guard is specified for wire
brushing, do not allow any interference of the
wire wheel or brush with the guard. Wire wheel
or brush may expand in diameter due to work load
and centrifugal forces.
3.6
Additional Safety Instructions:
WARNING – Always wear protective
goggles.
Wear ear protectors.
WARNING – Always operate the power tool
with two hands.
Use elastic cushioning layers if they have been
supplied with the sanding media and if required.
Observe the specifications of the tool or accessory
manufacturer!
Accessories must be stored and handled with care
in accordance with the manufacturer's instructions.
Ensure that accessories are installed in accordance
with the manufacturer's instructions.
The tool continues running after the machine has
been switched off.
Only use the machine if the protective cover is in
place.
Do not use separate reducing bushings or adapters
to adapt tools with a large hole.
Switch on the device before it is placed
against the workpiece! The workpiece must
lay flat and be secured against slipping, e.g. using
clamps. Large workpieces must be sufficiently
supported. Otherwise there is a risk of the
workpiece being thrown out of place in an
uncontrolled manner.
If accessories with threaded inserts are used, the
end of the spindle may not touch the base of the
hole on the sanding tool. Make sure that the thread
in the accessory is long enough to accommodate
the full length of the spindle. The thread in the
accessory must match the thread on the spindle.
See page 3 and chapter 14. Technical
Specifications for more information on the spindle
length and thread.
Damaged, eccentric or vibrating tools must not be
used.
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