Bosch GWS 18 U Bedienungsanleitung Seite 9

Connect machines that are used in the open
via a residual current device (RCD) with an ac-
tuating current of 30 mA maximum. Use only
extension cables that are approved for outdoor
use.
When working with the machine, always hold it
firmly with both hands and provide for a secure
stance.
Always direct the cable to the rear away from
the machine.
Always switch off the machine and allow to
come to a stop before placing it down.
Insert the mains plug only when the machine is
switched off.
For mains failure or when the main plug is
pulled, unlock the On/Off switch immediately
and turn it to the off position. This prevents un-
controlled restarting.
The machine can be used only for dry sanding.
For all work with the machine, the auxiliary
handle 4 must be mounted. For work with the
rubber sanding plate 7 or with the cup
brush 14/disc brush/flap disc, mounting the
hand protector 6 (optional extra) is recom-
mended.
Use a vacuum cleaner for drawing off the dust
when working with stone. The vacuum cleaner
must be approved for masonry dust.
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).
Observe the manufacturer's instructions for
mounting and using grinding tools.
9 • 1 609 929 C78 • TMS • 01.10.01
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.
Auxiliary Handle
For all work with the machine, the auxiliary
handle 4 must be mounted.
Screw the auxiliary handle 4 into the head of the
machine according to the working method.
Hand Protector (Optional extra)
For work with the rubber sanding plate 7 or with
the cup brush 14/disc brush/flap disc, mounting
the hand protector 6 (optional extra) is recom-
mended. The hand protector 6 is fastened with
the auxiliary handle 4.
Mounting the Grinding Tools
(Optional Accessories)
Before any work on the machine itself, pull
the mains plug.
Use only grinding tools with a permissi-
ble speed at least as high as the no-load
speed of the machine.
Clean the grinder spindle and all parts to be
mounted. For clamping and loosening the
grinding tools, lock the grinder spindle 5 with
the spindle locking button 2.
Actuate the spindle locking button 2 only
when the grinder spindle is at a standstill!
Flap disc (GWS 21 U)
Place the special retainer flange 11 (optional ex-
tra, Order No. 2 605 703 028) and the flap disc
on the grinder spindle 5. Screw on the clamping
nut 13 and tighten with the two-pin spanner.
Rubber Sanding Plate 7
Place the rubber sanding plate 7 with sanding
sheet onto the grinder spindle 5.
For mounting, see the illustration page.
Screw on the round nut 9 and tighten with the
two-pin spanner.
English - 2
Mounting the
Protective Devices