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Never lay the power tool down until the accessory has
come to a complete stop. The spinning accessory may
grab the surface and pull the power tool out of your
control.
After changing application tools or making adjustments
on the tool, tighten the collet nut, chuck or any other
fastening elements. Loose fastening elements can
unexpectedly misadjust and lead to loss of control;
unfastened, rotating components will be violently
thrown.
Do not run the power tool while carrying it at your side.
Accidental contact with the spinning accessory could
snag your clothing, pulling the accessory into your
body.
Regularly clean the power tool's air vents. The motor's
fan will draw the dust inside the housing and excessive
accumulation of powdered metal may cause electrical
hazards.
Do not operate the power tool near flammable materi-
als. Sparks could ignite these materials.
Do not use accessories that require liquid coolants.
Using water or other liquid coolants may result in elec-
trocution or shock.
Further safety warnings for all applications
Kickback and related warnings
Kickback is the sudden reaction to a pinched or snagged
rotating application tool, such as a grinding wheel, sand-
ing belt, wire brush, etc. Pinching or snagging causes the
rotating application tool to rapidly stop. This causes an
uncontrolled power tool to be forced in the direction
opposite of the application tool's rotation direction.
For example, if a grinding wheel is snagged or pinched
in the workpiece, the edge of the grinding wheel that is
entering into the workpiece can be caught, causing the
grinding wheel to break out or cause kickback. The
grinding wheel may either jump toward or away from
the operator, depending on the direction of the wheel
at the point of blocking. Grinding wheels can also break
under these conditions.
Kickback is the result of power tool misuse or incorrect
operating procedures. It can be avoided by taking
proper precautions as described below.
Maintain a firm grip on the power tool and position your
body and arms to allow you to resist kickback forces.
The operator can control torque reactions or kickback
forces, if proper precautions are taken.
Use special care when working corners, sharp edges
etc. Avoid bouncing and snagging the accessory. Cor-
ners, sharp edges or bouncing have a tendency to snag
the rotating accessory and cause loss of control or kick-
back.
Do not use toothed saw blades. Such application tools
create frequent kickback or loss of control over the
power tool.
Always feed the application tool into the material in the
same direction as the cutting edge is exiting from the
material (which is the same direction as the chips are
thrown). Guiding the power tool in the wrong direction
causes the cutting edge of the application tool to climb
out of the workpiece and pull the tool in the direction
of this feed.
Always clamp the workpiece when using rotating files,
cutting discs, carbide (TC) or high-speed grinding tools.
These application tools will pinch or grab if they
become slightly canted in the groove, and can kickback.
When a cutting disc grabs, the disc itself usually breaks.
When rotating files, carbide (TC) or high-speed grind-
ing tools pinch or grab, the tool insert may jump from
the groove and you could lose control of the tool.
Additional safety warnings for grinding and cut-
off grinding
Safety warnings specific for grinding and cut-off
grinding:
Use only grinding accessories that are approved for
your power tool and only for the recommended applica-
tions. Example: Never grind with the lateral surface of
a cutting disc. Cutting discs are intended for material
removal using the edge of the disc. Lateral force
exerted on these grinding accessories can cause them
to break.
For threaded conical and straight grinding
points/accessories, use only undamaged mandrels of
correct size and length with an unrelieved shoulder
flange. Suitable mandrels will reduce the possibility of
breakage.
Do not jam or seize the cutting disc or apply excessive
pressure. Do not make excessively deep cuts. Over-
stressing the cutting disc increases the loading and sus-
ceptibility to wedging or binding in the cut, and thus
increases the possibility of kickback or disc breakage.
Keep your hands clear of the area in front and behind
the rotating cutting disc. When moving the cutting disc
in the workpiece away from your hand, possible kick-
back may propel the power tool with the spinning disc
directly at you.
If the cutting disc should become jammed or when
interrupting work, switch the power tool off and hold it
motionless until the disc has come to a complete stop.
Never attempt to remove a still running cutting disc
from the cut, otherwise there is danger of kickback.
Determine and correct the cause for the jamming.
Do not switch the power tool on again as long as the
disc is still in the workpiece. Allow the cutting disc to
reach its full speed first before carefully continuing
with the cut. Otherwise the disc can bind, be forced out
of the workpiece or cause kickback.
Support panels or large workpieces to minimise the risk
of kickback from a jammed cutting disc. Large work-
pieces tend to sag under their own weight. The work-
piece must be supported on both sides of the cutting
disc, near the cut and also at the edges of the work-
piece.
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