Bosch GWS Professional 8-100 C Notice Originale page 11

OBJ_BUCH-708-005.book Page 11 Monday, November 21, 2016 10:43 AM
Mounting flange for grinding spindle
M 14: A plastic part (O-ring) is fitted
around the centring collar of mounting
flange 10. If the O-ring is missing or
damaged, the mounting flange 10
must be replaced before resuming op-
eration.
Mounting flange for grinding spindle
M 10: The mounting flange can be used
on both sides.
Flap Disc
 For operations with the flap disc, always mount the
hand guard 17.
Rubber Sanding Plate
 For operations with the rubber sanding plate 18, al-
ways mount the hand guard 17.
See graphics page for the mounting sequence.
Screw on round nut 20 and tighten it with the combination
spanner 5/6.
Cup Brush/Disc Brush
 For operations with the cup brush/wheel brush, always
mount the hand guard 17.
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. Tight-
en 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 13 in-
stead of the clamping nut 12.
 The quick-clamping nut 13 may be used only for grind-
ing or cutting discs.
Use only a flawless, undamaged quick-clamping nut 13.
When screwing on, pay attention that the side of the
quick-clamping nut 13 with printing does not face the
grinding disc; the arrow must point to the index mark 25.
Lock the grinder spindle with
the spindle lock button 1. To
25
tighten the quick-clamping
nut, firmly turn the grinding
disc in clockwise direction.
Bosch Power Tools
A properly fastened, undam-
aged quick-clamping nut can
be manually loosened by
turning the knurled ring in an-
ticlockwise direction.
Never loosen a tight quick-
clamping nut using pliers;
always use the combination
spanner. Apply the combina-
tion spanner 5/6 as shown in
the figure.
Approved Grinding Tools
All grinding tools mentioned in these operating instructions
can be used.
-1
The permissible speed [min ] 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/circumferen-
tial speed on the label of the grinding tool.
max.
[mm] [mm]
D b
100 6 16.0
115 6 22.2
125 6 22.2
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.
without removing it from the housing, to the new position.
Screw in and tighten the four screws again.
English | 11
-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 machine housing in
90° steps. In this man-
ner, 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,
1 609 92A 2V8 | (21.11.16)