Bosch GWS Professional 8-115 Z Notice Originale page 19

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OBJ_BUCH-124-006.book Page 20 Tuesday, August 27, 2013 11:13 AM
20 | English
To fasten the grinding/cutting disc, screw on the clamping nut
10 and tighten with the two-pin spanner; see Section "Quick-
clamping Nut ".
 After mounting the grinding tool and before switching
on, check that the grinding tool is correctly mounted
and that it can turn freely. Make sure that the grinding
tool does not graze against the protection guard or oth-
er parts.
A plastic part (O-ring) is fitted around
the centring collar of mounting flange 8.
If the O-ring is missing or damaged,
the mounting flange 8 must be replaced
before resuming operation.
Flap Disc
 For operations with the flap disc, always mount the
hand guard 16.
Rubber Sanding Plate
 For operations with the rubber sanding plate 17, al-
ways mount the hand guard 16.
See graphics page for the mounting sequence.
Screw on the round nut 19 and tighten with the two-pin
spanner.
Cup Brush/Disc Brush
 For operations with the cup brush/wheel brush, always
mount the hand guard 16.
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 11 in-
stead of the clamping nut 10.
 The quick-clamping nut 11 may be used only for grind-
ing or cutting discs.
Use only a flawless, undamaged quick-clamping 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 24.
1 609 92A 0EC | (27.8.13)
Lock the grinder spindle with
the spindle lock button 2. To
24
tighten the quick-clamping
nut, firmly turn the grinding
disc in clockwise direction.
A properly attached, undam-
aged quick-clamping nut can
be loosened by hand when
turning the knurled ring in an-
ticlockwise direction.
Never loosen a tight quick-
clamping nut with pliers. Al-
ways use the two-pin span-
ner. Insert the two-pin span-
ner as shown in the
illustration.
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 d
d
115 6 22,2
D
125 6 22,2
b
D
115 – –
125 – –
d
75 30 M 14
b
D
-1
[min ] [m/s]
11000 80
11000 80
11000 80
11000 80
11000 45
Bosch Power Tools