Bosch GWS 8-115 Z PROFESSIONAL Bedienungsanleitung Seite 22

Cup Brush/Disc Brush
For operations with the rubber sanding plate 15
or with the cup brush/wheel brush/flap disc,
always mount the hand guard 14.
See graphics page for the mounting sequence.
The cup brush/disc brush must be able to be screwed
onto the grinder spindle until it rests firmly against the
grinder spindle flange at the end of the grinder spindle
threads. Tighten the cup brush/disc brush with an
open-end spanner.
Quick-clamping Nut
For convenient changing of grinding tools without the
use of additional tools, you can use the quick-clamping
nut 11 instead of the clamping nut 10.
The quick-clamping nut 11 may be used only for
grinding or cutting discs.
Use only a flawless, undamaged quick-clamping
nut 11.
When screwing on, pay attention that the side of
the quick-clamping nut 11 with printing does not
face the grinding disc; the arrow must point to
the index mark 21.
21
1 609 929 J46 • 15.12.05
Lock the grinder spindle
with the spindle lock button
2. To tighten the quick-
clamping nut, firmly turn the
grinding disc in clockwise
direction.
A properly attached,
undamaged quick-clamping
nut can be loosened by
hand when turning the
knurled ring in anticlock-
wise direction.
Never loosen a tight
quick-clamping nut with
pliers. Always use the
two-pin spanner. Insert
the two-pin spanner as
shown in the illustration.
Approved Grinding Tools
All grinding tools mentioned in these operating instruc-
tions can be used.
The permissible speed [rpm] or the circumferential
speed [m/s] of the grinding tools used must at least
match the values given in the table.
Therefore, observe the permissible rotational/cir-
cumferential speed on the label of the grinding tool.
d
D
b
D
d
b
D
Rotating the Machine Head
Before any work on the machine itself, pull the
mains plug.
Completely unscrew the four screws. Rotate the
machine head carefully, without removing it from
the housing, to the new position. Screw in and tighten
the four screws again.
English–7
max. [mm]
[mm]
D b d
115 6 22.2 11000
125 6 22.2 11000
115 11000
125 11000
75 30 M 14 11000
The machine head can
be rotated with respect
to the machine housing
in 90° steps. In this
manner,
switch can be brought
into a more convenient
handling position for
special working situa-
tions,
operations with the cut-
ting guide 19/cut off
stand or for left-handed
persons.
[rpm] [m/s]
80
80
80
80
45
the On/Off
e. g., cutting