Dust/Chip Extraction - Bosch GWS 22-180 JH Professional Originalbetriebsanleitung

OBJ_BUCH-777-006.book Page 30 Monday, December 13, 2010 8:51 AM
30 | English
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
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 rotation-
al/circumferential speed on the label of the
grinding tool.
max.
[mm] [mm]
D b
d
180 8 22.2
230 8 22.2
D
b
180
D
–
230
d
100 30 M 14
b
D
1 609 929 X88 | (13.12.10)
Rotating the Machine Head
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
-1
] or the circumfer-
machine head carefully, without removing it
from the housing, to the new position. Screw in
and tighten the four screws again.

Dust/Chip Extraction

-1
d [min ] [m/s]
8500 80
6500 80
8500 80
–
6500 80
8500 45
Before any work on the machine itself, pull
the mains plug.
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
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.
– As far as possible, use a dust extraction
system suitable for the material.
– 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.
Prevent dust accumulation at the work-
place. Dusts can easily ignite.
Bosch Power Tools