When Screwing On, Pay Attention That The Side - Bosch GWS Professional 7-100 GWS Professional Original Instructions Manual

OBJ_BUCH-850-003.book Page 14 Wednesday, July 22, 2009 3:13 PM
14 | English
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.
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
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.
1 619 P07 393 | (22.7.09)
Approved Grinding Tools
All grinding tools mentioned in these operating
instructions can be used.
The permissible speed [min
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
100 6 16.0
d
115 6 22.2
D
125 6 22.2
b
100 –
D
115 –
125 –
d
70 30 M 10
b 75 30 M 14
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.
-1
] or the circumfer-
-1
d [min ] [m/s]
11000 80
11000 80
11000 80
– 11000 80
– 11000 80
– 11000 80
11000 45
11000 45
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.
Bosch Power Tools