28 | en
Assembly
Mounting the protective devices
Before any work on the machine itself,
pull the mains plug.
Auxiliary handle
Operate your machine only with the aux-
iliary handle 5 and 6.
Screw the auxiliary handle 5 and 6 on the right,
left or center of the machine head depending
on the working method.
Vibration-dampening Auxiliary Handle
The vibration-dampening auxiliary handle
reduces the vibrations, making operation more
comfortable and secure.
Do not make any alterations to the auxil-
iary handle.
Mounting the grinding tools
Before any work on the machine itself,
pull the mains plug.
Clean the sander spindle 7 and all parts to be
mounted.
For clamping and loosening the grinding tools,
lock the sander spindle with the spindle lock but-
ton.
Actuate the spindle lock button only when
the sander spindle is at a standstill. Other-
wise, the machine may become damaged.
After mounting the sanding tool and
before switching on, check that the
grinding tool is correctly mounted and
that it can turn freely. Make sure that
the grinding tool does not graze against
the protection guard or other parts.
F 000 622 320 | 07.2010
3_GWS_22U_GWS12U_Page3to30.indd 28
Operating instructions
Rubber sanding plate
For operations with the rubber sanding
plate 11, always mount the hand guard 8.
See graphics page for the mounting sequence.
Screw on the round nut 12 and tighten with the
two-pin spanner.
Cup brush/disc brush
For operations with the cup brush/wheel
brush, always mount the hand guard 8.
See graphics page for the mounting sequence.
The cup brush/disc brush must be able to be
screwed onto the sander spindle until it rests
firmly against the sander spindle flange at the
end of the sander spindle threads. Tighten the
cup brush/disc brush with an open-end span-
ner.
Approved grinding tools
All grinding tools mentioned in these operating
instructions can be used.
The permissible speed [/min] or the circumfer-
ential speed [m/s] of the grinding tools used
must at least match the values given in the table.
Therefore, observe the permissible rota-
tional/circumferential speed on the label of
the grinding tool.
máx.
[mm]
[mm]
D
b
D
180
–
d
100
30 M 14*
b
D
* For Central America countries spindle thread Ø 5/8".
d
[/min]
[m/s]
–
6500
80
5000
45
Robert Bosch Ltda.
28/07/10 11:03