Bosch GWS 20-180 H Instrucciones De Servicio página 17

Grinding cup
When working with grinding cups, use a
special guard 15.
The grinding cup 16 should always protrude
from the guard 15 only as far as absolutely nec-
essary for the work to be performed in each case.
Adjust the guard 15 to this distance.
For mounting, see the illustration page.
Screw on the clamping nut 11 and tighten with a
suitable offset two-pin spanner.
Quick Clamping Nut
(Optional Extra)
Instead of the clamping nut 11, the quick clamp-
ing nut 12 (optional extra) can be used. Grinding
tools can be mounted without using tools.
The quick clamping nut 12 may be used only
for roughing and cutting discs.
Use only a flawless, undamaged quick clamp-
ing nut 12.
When screwing on, take care that the side with
printing does not point to the grinding disc. The
arrow must point to the index mark 26.
26
12
2
2
18 • 1 609 929 C69 • TMS • 21.08.01
Lock the grinder
spindle with the spin-
dle locking button 2.
Tighten the quick
clamping nut by
forcefully turning the
grinding disc in the
clockwise direction.
A properly tightened
undamaged, quick
clamping nut can be
loosened by hand
turning the knurled
ring in the counter-
clockwise direction.
Never loosen a tight
quick clamping nut
with pliers but use a
two-pin spanner. In-
sert the two-hole
spanner as shown in
the illustration.
English - 5
Approved Grinding Tools
All grinding tools described in these operating in-
structions can be used (roughing and cutting
discs of synthetic resin-bonded, fibre-reinforced
material).
The permissible speed [rpm] or the circumferen-
tial speed [m/s] of the grinding tools used must
be at least in accordance with the values given in
the table.
Therefore, always observe the permissible
rotational/circumferential speed on the label
of the grinding tool.
max.
[mm]
D
d
180
230
D
b
180
D
230
d
100
b
D
Initial Operation
Check for correct mains voltage: The voltage
of the power source must agree with the voltage
specified on the nameplate of the machine.
Equipment marked with 230 V can also be con-
nected to 220 V.
Switching on and off
To start the unit, push the On/Off switch 3 for-
wards without pressure on it and press down af-
terwards.
To lock-on, push the pressed On/Off switch 3
further forwards.
To switch off the machine, release the On / Off
switch 3 or push and release it then.
Switch configuration without lock
(specific countries):
To start the unit, push the On/Off switch 3 for-
wards without pressure on it and press down af-
terwards.
To switch off the unit, release the On/Off
switch 3.
[mm]
b d [rpm]
8 22.2 8 500
8 22.2 6 500
– – 8 500
– – 6 500
30 M 14 8 500
[m/s]
80
80
80
80
45