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29
Bosch Power Tools
1 609 929 L91 | (23.7.08)
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 span-
ner.
Grinding Cup
f
When working with the grinding cup, mount
the special protection guard 11.
The grinding cup
12
should never project further
out of the protection guard
11
than necessary
for the respective grinding application. Adjust
the protection guard
11
accordingly to this di-
mension.
See graphics page for the mounting sequence.
Screw on the clamping nut
9
and tighten it with
the two-pin spanner
13
.
Quick-clamping Nut
For convenient changing of grinding tools with-
out the use of additional tools, you can use the
quick-clamping nut
10
instead of the clamping
nut
9
.
f
The quick-clamping nut 10 may be used only
for grinding or cutting discs.
Use only a flawless, undamaged quick-clamp-
ing nut 10.
When screwing on, pay attention that the side
of the quick-clamping nut 10 with printing
does not face the grinding disc; the arrow must
point to the index mark 22.
Lock the grinder spin-
dle with the spindle
lock button
1
. To tight-
en the quick-clamping
nut, firmly turn the
grinding disc in clock-
wise direction.
A properly attached,
undamaged quick-
clamping nut can be
loosened by hand
when turning the
knurled ring in anti-
clockwise direction.
Never loosen a tight
quick-clamping nut
with pliers. Always
use the two-pin span-
ner.
Insert the two-pin
spanner as shown in
the illustration.
Approved Grinding Tools
All grinding tools mentioned in these operating
instructions can be used.
The permissible speed [min
-1
] 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
rotation-
al/circumferential speed
on the label of the
grinding tool.
22
max.
[mm]
[mm]
D
b
d
[min
-1
] [m/s]
180
230
8
8
22.2
22.2
8500
6500
80
80
180
230
–
–
8500
6500
80
80
100 30 M 14
8500
45
b
d
D
D
D
b
d
OBJ_BUCH-812-001.book Page 29 Wednesday, July 23, 2008 4:02 PM
