Bosch GWS 8-115 Professional Instructions D'emploi page 25

OBJ_BUCH-340-001.book Page 26 Thursday, February 8, 2007 8:55 AM
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 other
parts.
An O-ring (plastic part) is inserted
in the mounting flange 8 around the
centring collar. If the O-ring is
missing or is damaged, it must
in all cases be replaced (article
number 1 600 210 039) before
the mounting flange 8 is mounted.
Flap Disc
For operations with the rubber sanding plate
16 or with the cup brush/wheel brush/flap
disc, always mount the hand guard 15.
Rubber Sanding Plate
For operations with the rubber sanding plate
16 or with the cup brush/wheel brush/flap
disc, always mount the hand guard 15.
See graphics page for the mounting sequence.
Screw on the round nut 18 and tighten with the two-
pin spanner.
Cup Brush/Disc Brush
For operations with the rubber sanding plate
16 or with the cup brush/wheel brush/flap
disc, always mount the hand guard 15.
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. Tighten 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-clamp-
ing 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 22.
26 | English
Lock the grinder spindle
with the spindle lock but-
22
ton 2. To tighten the quick-
clamping nut, firmly turn
the grinding disc in clock-
wise direction.
A
undamaged quick-clamp-
ing nut can be loosened by
hand when turning the
knurled ring in anticlock-
wise direction.
Never loosen a tight
quick-clamping nut with
pliers. Always use the
two-pin spanner. 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 [rpm] 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/cir-
cumferential speed on the label of the grinding tool.
max.
[mm]
D b
d 115 6
125 6
D
150 6
b
D
115
–
125
d
75 30
b
D
properly attached,
[mm]
d [rpm] [m/s]
22.2 11000 80
22.2 11000 80
22.2 9300 80
11000 80
–
11000 80
M 14 11000 45
1 609 929 L00 • 8.2.07