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16 | English
tion, is moving away from your hand, the possible kick-
back may propel the spinning wheel and the power tool
directly at you.
When wheel is pinched, snagged or when interrupting
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a cut for any reason, switch off the power tool and
hold the power tool motionless until the wheel comes
to a complete stop. Never attempt to remove the cut-
off wheel from the cut while the wheel is in motion
otherwise kickback may occur. Investigate and take
corrective action to eliminate the cause of wheel pinching
or snagging.
Do not restart the cutting operation in the workpiece.
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Let the wheel reach full speed and carefully re-enter
the cut. The wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.
Support panels or any oversized workpiece to minim-
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ize the risk of wheel pinching and kickback. Large
workpieces tend to sag under their own weight. Supports
must be placed under the workpiece near the line of cut
and near the edge of the workpiece on both sides of the
wheel.
Use extra caution when making a "pocket cut" into ex-
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isting walls or other blind areas. The protruding wheel
may cut gas or water pipes, electrical wiring or objects
that can cause kickback.
Safety warnings specific for wire brushing operations
Be aware that wire bristles are thrown by the brush
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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.
Allow brushes to run at operating speed for at least
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one minute before using them. During this time no one
is to stand in front or in line with the brush. Loose
bristles or wires will be discharged during the run-in time.
Direct the discharge of the spinning wire brush away
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from you. Small particles and tiny wire fragments may be
discharged at high velocity during the use of these
brushes and may become imbedded in your skin.
Additional safety information
Do not touch grinding and cutting discs until they have
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cooled down. The discs can become very hot while work-
ing.
Secure the workpiece. A workpiece clamped with
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clamping devices or in a vice is held more secure than by
hand.
This power tool is not suitable for bench-mounted use.
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It must not be clamped into a vice or fastened to a work-
bench, for example.
In case of damage and improper use of the battery, va-
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pours may be emitted. The battery can set alight or ex-
plode. Ensure the area is well ventilated and seek medical
attention should you experience any adverse effects. The
vapours may irritate the respiratory system.
Do not open the battery. There is a risk of short-circuit-
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ing.
1 609 92A 5E8 | (04.02.2020)
The battery can be damaged by pointed objects such
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as nails or screwdrivers or by force applied externally.
An internal short circuit may occur, causing the battery to
burn, smoke, explode or overheat.
Only use the battery with products from the manufac-
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turer. This is the only way in which you can protect the
battery against dangerous overload.
Protect the battery against heat, e.g. against
continuous intense sunlight, fire, dirt, water
and moisture. There is a risk of explosion and
short-circuiting.
Caution! When using the power tool with Bluetooth
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fault may occur in other devices and systems, aero-
planes and medical devices (e.g. pacemakers, hearing
aids). Also, damage to people and animals in the im-
mediate vicinity cannot be completely excluded. Do
not use the power tool with Bluetooth
medical devices, petrol stations, chemical plants,
areas with a potentially explosive atmosphere or in
blasting areas. Do not use the power tool with
®
Bluetooth
in aircraft. Avoid using the product near
your body for extended periods.
®
The Bluetooth
word mark and logos are registered trade-
marks owned by Bluetooth SIG, Inc. and any use of such
marks by Robert Bosch Power Tools GmbH is under li-
cense.
Product Description and
Specifications
Read all the safety and general instructions.
Failure to observe the safety and general in-
structions may result in electric shock, fire
and/or serious injury.
Please observe the illustrations at the beginning of this oper-
ating manual.
Intended Use
The power tool is intended for grinding and deburring metal
with corundum grinding tools, as well as for working with
sanding belt tools, sanding with sanding discs and milling.
The power tool is additionally intended for brushing and pol-
ishing metal.
®
With the Bluetooth
Low Energy Module GCY 30-4 inserted,
power tool data and settings can be transferred between the
power tool and a mobile device by means of Bluetooth
less technology.
Product Features
The numbering of the product features refers to the diagram
of the power tool on the graphics page.
(1) Collet
(2) Clamping nut
(3) Grinding spindle
(4) Spindle neck (insulated gripping surface)
®
, a
®
in the vicinity of
®
wire-
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