Bosch GRO 12V-35 Professional Originalbetriebsanleitung Seite 16

OBJ_BUCH-2916-001.book Page 16 Tuesday, July 12, 2016 1:56 PM
16 | English
 Do not use a toothed saw blade. Such blades create fre-
quent kickback and loss of control over the power tool.
 Always feed the bit into the material in the same direc-
tion as the cutting edge is exiting from the material
(which is the same direction as the chips are thrown).
Feeding the tool in the wrong direction causes the cutting
edge of the bit to climb out of the work and pull the tool in
the direction of this feed.
 When using rotary files, cut-off wheels, high-speed cut-
ters or tungsten carbide cutters, always have the work
securely clamped. These wheels will grab if they become
slightly canted in the groove, and can kickback. When a
cut-off wheel grabs, the wheel itself usually breaks. When
the rotary file, high-speed cutter or tungsten carbide cut-
ter grab, it may jump from the groove and you could lose
control of the tool.
Safety warnings specific for Grinding and Abrasive Cut-
ting-Off operations
 Use only wheel types that are recommended for your
power tool and only for recommended applications.
For example: do not grind with the side of a cut-off
wheel. Abrasive cut-off wheels are intended for peripheral
grinding, side forces applied to these wheels may cause
them to shatter.
 For threaded abrasive cones and plugs use only undam-
aged wheel mandrels with an unrelieved shoulder
flange that are of correct size and length. Proper man-
drels will reduce the possibility of breakage.
 Do not "jam" the cut-off wheel or apply excessive pres-
sure. Do not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and suscep-
tibility to twisting or binding of the wheel in the cut and the
possibility of kickback or wheel breakage.
 Do not position your hand in line with and behind the
rotating wheel. When the wheel, at the point of operation,
is moving away from your hand, the possible kickback may
propel the spinning wheel and the power tool directly at
you.
 When wheel is pinched, snagged or when interrupting
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 other-
wise kickback may occur. Investigate and take corrective
action to eliminate the cause of wheel pinching or snag-
ging.
 Do not restart the cutting operation in the workpiece.
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 minimize
the risk of wheel pinching and kickback. Large work-
pieces 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.
1 609 92A 3B4 | (12.7.16)
 Use extra caution when making a "pocket cut" into ex-
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
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 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
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 warnings
Wear safety goggles.
 Use appropriate detectors to determine if utility lines
are hidden in the work area or call the local utility com-
pany for assistance. Contact with electric lines can lead
to fire and electric shock. Damaging a gas line can lead to
explosion. Penetrating a water line causes property dam-
age.
 Secure the workpiece. A workpiece clamped with clamp-
ing devices or in a vice is held more secure than by hand.
 The power tool is not suitable for stationary operation.
For example, it may not be clamped in a vice or fastened on
a workbench.
 Do not open the battery. Danger of short-circuiting.
Protect the battery against heat, e. g., against
continuous intense sunlight, fire, water, and mois-
ture. Danger of explosion.
 In case of damage and improper use of the battery, va-
pours may be emitted. Ventilate the area and seek
medical help in case of complaints. The vapours can irri-
tate the respiratory system.
 Use the battery only in conjunction with your Bosch
power tool. This measure alone protects the battery
against dangerous overload.
 The battery can be damaged by pointed objects such as
nails or screwdrivers or by force applied externally. An
internal short circuit can occur and the battery can burn,
smoke, explode or overheat.
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