14
| English
1 619 P07 393 | (22.7.09)
Bosch Power Tools
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.
Quick-clamping Nut
For convenient changing of grinding tools with-
out the use of additional tools, you can use the
quick-clamping nut
12
instead of the clamping
nut
11
.
f
The quick-clamping nut 12 may be used only
for grinding or cutting discs.
Use only a flawless, undamaged quick-clamp-
ing nut 12.
When screwing on, pay attention that the side
of the quick-clamping nut 12 with printing
does not face the grinding disc; the arrow must
point to the index mark 23.
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.
Rotating the Machine Head
f
Before any work on the machine itself, pull
the mains plug.
The machine head
can be rotated with
respect to the ma-
chine housing in
90° steps. In this
manner, the On/Off
switch can be
brought into a more
convenient posi-
tion for special
working situations,
e.g. for left-handed
persons.
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.
23
max.
[mm]
[mm]
D
b
d
[min
-1
] [m/s]
100
115
125
6
6
6
16.0
22.2
22.2
11000
11000
11000
80
80
80
100
115
125
–
–
–
–
–
–
11000
11000
11000
80
80
80
70
75
30
30
M 10
M 14
11000
11000
45
45
b
d
D
D
D
b
d
OBJ_BUCH-850-003.book Page 14 Wednesday, July 22, 2009 3:13 PM