Bosch GWS 21-180 HV PROFESSIONAL Instrucciones De Servicio página 16

For all work with the machine, the auxiliary
handle must be mounted.
Hold the power tool only by the insulated
gripping surfaces, when performing an op-
eration where the cutting tool may run into
hidden wiring or its own cord.
Contact with a "live" wire will make exposed
metal parts of the tool "live" and shock the op-
erator.
Use appropriate detectors to determine if
utility lines are hidden in the work area or
call the local utility company for assist-
ance.
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 damage or may cause an electric
shock.
For work with grinding or cutting discs, the pro-
tection guard 7 must be mounted. For work
with the rubber sanding plate 21 or with the
cup brush 24/disc brush/flap disc, the hand
guard 19 (accessory) is to be mounted.
Use dust extraction when working with stone.
The vacuum cleaner must be approved for ma-
sonry dust. When cutting stone, use the cutting
guide.
Do not work with materials containing asbes-
tos.
Use only grinding tools with a permissible
speed at least as high as the no-load speed of
the machine.
Check grinding tools before use. The grinding
tool must be properly mounted and turn freely.
Perform a test run for at least 30 seconds with-
out load. Do not use damaged, out-of-round or
vibrating grinding tools.
Protect the grinding tool from impact, shock
and grease.
Apply the machine to the workpiece only when
switched on.
Keep hands away from rotating grinding tools.
Pay attention to the direction of rotation. Al-
ways hold the machine so that sparks and
grinding dust fly away from the body.
When grinding metal, flying sparks are pro-
duced. Take care that no persons are endan-
gered. Due to danger of fire, no combustible
materials should be located in the vicinity
(spark flight zone).
17 • 1 609 929 F55 • TMS • 18.12.03
Be careful when cutting grooves, e. g. in struc-
tural walls: See Information on Structures.
Blocking the cutting disc leads to jerking reac-
tion forces on the machine. In this case switch
off the machine immediately.
Pay attention to the dimensions of the grinding
disc. The mounting hole diameter must fit the
mounting flange 10 without play. Do not use
reducers or adapters.
Never use cutting discs for rough grinding. Do
not exert any lateral pressure on the cutting
discs.
Observe the manufacturer's instructions for
mounting and using grinding tools.
Caution! The grinding tool runs on after the
machine is switched off.
Do not clamp the machine in a vice.
Never allow children to use the machine.
Bosch is only able to ensure perfect operation
of the machine if the original accessories in-
tended for it are used.
Before any work on the machine itself, pull
the mains plug.
For work with grinding or cutting discs, the
protection guard 7 must be mounted.
Protection Guard with Locking Screw
The coded projection 15 on the protection
guard 7 ensures that only a guard that fits the
machine type can be mounted.
Loosen the clamping screw 14, if necessary.
Place the protection guard 7 with coded projec-
tion 15 into the coded groove on the spindle col-
lar of the machine head and rotate to the required
position (working position).
The closed side of the protection guard 7
must always point to the operator.
Tighten clamping screw 14.
English - 3
Mounting the
Protective Devices