Bosch GWS 22-180 H Professional Manual Original página 29

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OBJ_BUCH-777-004.book Page 30 Wednesday, July 15, 2009 2:55 PM
30 | English
Quick-clamping Nut
For convenient changing of grinding tools with-
out 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-clamp-
ing 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 23.
Lock the grinder spin-
dle with the spindle
23
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.
1 609 929 R46 | (15.7.09)
Approved Grinding Tools
All grinding tools mentioned in these operating
instructions can be used.
-1
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 rotation-
al/circumferential speed on the label of the
grinding tool.
max.
[mm] [mm]
D b d
d
180 8 22.2
230 8 22.2
D
b
180
D
– –
230
d
100 30 M 14
b
D
Rotating the Machine Head
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 cutting operations
using the cutting guide with dust extraction pro-
tection guard 21 or 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.
Bosch Power Tools
-1
[min ] [m/s]
8500 80
6500 80
8500 80
6500 80
8500 45