Bosch GWG 12V-50 S Professional Originalbetriebsanleitung Seite 14

14 | English
Do not use accessories which are not specifically de-
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signed and recommended by the tool manufacturer.
Just because the accessory can be attached to your
power tool, it does not assure safe operation.
The rated speed of the grinding accessories must be
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at least equal to the maximum speed marked on the
power tool. Grinding accessories running faster than
their rated speed can break and fly apart.
The outside diameter and the thickness of your ac-
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cessory must be within the capacity rating of your
power tool. Incorrectly sized accessories cannot be ad-
equately controlled.
The arbour size of wheels, sanding drums or any other
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accessory must properly fit the spindle or collet of the
power tool. Accessories that do not match the mounting
hardware of the power tool will run out of balance, vibrate
excessively and may cause loss of control.
Mandrel mounted wheels, sanding drums, cutters or
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other accessories must be fully inserted into the collet
or chuck. If the mandrel is insufficiently held and/or the
overhang of the wheel is too long, the mounted wheel
may become loose and be ejected at high velocity.
Do not use a damaged accessory. Before each use in-
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spect the accessory such as abrasive wheels for chips
and cracks, sanding drum for cracks, tear or excess
wear, wire brush for loose or cracked wires. If power
tool or accessory is dropped, inspect for damage or in-
stall an undamaged accessory. After inspecting and
installing an accessory, position yourself and bystand-
ers away from the plane of the rotating accessory and
run the power tool at maximum no-load speed for one
minute. Damaged accessories will normally break apart
during this test time.
Wear personal protective equipment. Depending on
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application, use face shield, safety goggles or safety
glasses. As appropriate, wear dust mask, hearing pro-
tectors, gloves and workshop apron capable of stop-
ping small abrasive or workpiece fragments. The eye
protection must be capable of stopping flying debris gen-
erated by various operations. The dust mask or respirator
must be capable of filtrating particles generated by your
operation. Prolonged exposure to high intensity noise
may cause hearing loss.
Keep bystanders a safe distance away from work area.
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Anyone entering the work area must wear personal
protective equipment. Fragments of workpiece or of a
broken accessory may fly away and cause injury beyond
immediate area of operation.
Always hold the tool firmly in your hand(s) during the
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start-up. The reaction torque of the motor, as it acceler-
ates to full speed, can cause the tool to twist.
Use clamps to support workpiece whenever practical.
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Never hold a small workpiece in one hand and the tool
in the other hand while in use. Clamping a small work-
piece allows you to use your hand(s) to control the tool.
Round material such as dowel rods, pipes or tubing have
1 609 92A 8HB | (21.12.2022)
a tendency to roll while being cut, and may cause the bit
to bind or jump toward you.
Never lay the power tool down until the accessory has
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come to a complete stop. The spinning accessory may
grab the surface and pull the power tool out of your con-
trol.
After changing the bits or making any adjustments,
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make sure the collet nut, chuck or any other adjust-
ment devices are securely tightened. Loose adjustment
devices can unexpectedly shift, causing loss of control,
loose rotating components will be violently thrown.
Do not run the power tool while carrying it at your
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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
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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-
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als. Sparks could ignite these materials.
Do not use accessories that require liquid coolants.
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Using water or other liquid coolants may result in electro-
cution or shock.
Hold power tool by insulated gripping surfaces only,
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when performing an operation where the cutting ac-
cessory may contact hidden wiring. Cutting accessory
contacting a "live" wire may make exposed metal parts of
the power tool "live" and could give the operator an elec-
tric shock.
Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged rotat-
ing wheel, sanding band, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating ac-
cessory which in turn causes the uncontrolled power tool to
be forced in the direction opposite of the accessory's rota-
tion.
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 direc-
tion of the wheel's movement at the point of pinching. Abras-
ive 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.
Maintain a firm grip on the power tool and position
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your body and arm to allow you to resist kickback
forces. The operator can control kickback forces, if
proper precautions are taken.
Use special care when working corners, sharp edges
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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.
Bosch Power Tools