Bosch GGS Professional 8 CE Manual Original página 12

12 | English
 Keep bystanders a safe distance away from work area.
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.
 Hold the power tool only by the insulated gripping sur-
faces, when performing an operation where the cutting
accessory may contact hidden wiring or its own con-
necting cable. Cutting accessory contacting a "live" wire
may make exposed metal parts of the power tool "live" and
could give the operator an electric shock.
 Always hold the tool firmly in your hand(s) during the
start-up. The reaction torque of the motor, as it acceler-
ates to full speed, can cause the tool to twist.
 If possible, use clamps to fix the workpiece. Never hold
a small workpiece in one hand whilst operating the
power tool in the other. Clamping small workpieces gives
you both hands free to better control the power tool.
Round workpieces such as wooden dowels, bars or pipes
tend to roll away when being cut, which can cause the ac-
cessory to jam and be hurled towards you.
 Position the connecting cable clear of the spinning ac-
cessory. If you lose control of the power tool, the connect-
ing cable may be cut or snagged and your hand or arm may
be pulled into the spinning accessory.
 Never lay the power tool down until the accessory has
come to a complete stop. The spinning wheel may grab
the surface and pull the power tool out of your control.
 After changing the bits or making any adjustments,
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 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 ac-
cumulation of powdered metal may cause electrical haz-
ards.
 Do not operate the power tool near flammable materi-
als. Sparks could ignite these materials.
 Do not use accessories that require liquid coolants. Us-
ing water or other liquid coolants may result in electrocu-
tion or shock.
Kickback and related warnings
 Kickback is a sudden reaction to a pinched or snagged ro-
tating wheel, belt, 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 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
3 609 929 C85 | (18.6.14)
either jump toward or away from the operator, depending
on direction of the wheel's movement at the point of pinch-
ing. Abrasive wheels may also break under these condi-
tions.
Kickback is the result of power tool misuse and/or incor-
rect operating procedures or conditions and can be avoid-
ed by taking proper precautions as given below.
 Maintain a firm grip on the power tool and position your
body and arm to allow you to resist kickback forces.
The operator can control kickback forces, if proper precau-
tions 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 kickback.
 Do not use a toothed saw blade. Such blades create fre-
quent kickback and loss of control over the power tool.
 Always feed the accessory into the material in the same
direction in which the cutting edge exits the material
(the same direction in which the chips are ejected).
Feeding the power tool in the wrong direction causes the
cutting edge of the accessory to run out of the workpiece,
which causes the power tool to be pulled in this feed direc-
tion.
 Always clamp the workpiece securely when using ro-
tating files, high-speed routing bits or carbide routing
bits. These accessories snag in the groove even upon
slight tilting and can cause kickback. If rotating files, high-
speed routing bits or carbide routing bits snag, the acces-
sory can jump out of the groove and lead to loss of control
over the power tool.
Additional safety instructions for grinding
 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.
Safety warnings specific for wire brushing operations
(GGS 8 CE)
 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.
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