Dust/Chip Extraction - Bosch GWS 22-180 H Professional Manual Original

30 | English
spanner as shown in the illustration.
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 rotational/
circumferential speed on the label of the grind-
ing tool.
max.
[mm]
D b
d
180 8
230 8
D
b
180
D
–
230
d
100 30
b
D
1 609 929 W54 | (9.3.10)
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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
-1
] or the circumfer-
[mm]
-1
d [min ] [m/s]
22.2 8500 80
22.2 6500 80
8500 80
–
6500 80
M 14 8500 45
Rotating the Machine Head
Before any work on the machine itself, pull
the mains plug.
working situations, e. g., for cutting operations
using the cutting guide with dust extraction pro-
tection guard 23 or for left-handed persons.
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.

Dust/Chip Extraction

Dusts from materials such as lead-containing
coatings, some wood types, minerals and
metal can be harmful to one's health. Touch-
ing or breathing-in the dusts can cause aller-
gic reactions and/or lead to respiratory infec-
tions of the user or bystanders.
Certain dusts, such as oak or beech dust, are
considered as carcinogenic, especially in
connection with wood-treatment additives
(chromate, wood preservative). Materials
containing asbestos may only be worked by
specialists.
– Use dust extraction whenever possible.
– Provide for good ventilation of the work-
ing place.
– It is recommended to wear a P2 filter-
class respirator.
Observe the relevant regulations in your
country for the materials to be worked.
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
Bosch Power Tools