Bosch Professional GBH 2-22 S Notice Originale page 11

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OBJ_BUCH-795-001.book Page 11 Monday, June 23, 2008 4:31 PM
Dust Extraction with the Dust Extraction
Attachment (Accessory)
Dusts from materials such as lead-containing
coatings, some wood types, minerals and
metal can be harmful to one's health. Touching
or breathing-in the dusts can cause allergic
reactions and/or lead to respiratory infections
of the user or bystanders.
Certain dusts, such as oak or beech dust, are
considered as carcinogenic, especially in con-
nection with wood-treatment additives (chro-
mate, wood preservative). Materials containing
asbestos may only be worked by specialists.
– Use dust extraction whenever possible.
– Provide for good ventilation of the working
place.
– It is recommended to wear a P2 filter-class
respirator.
Observe the relevant regulations in your coun-
try for the materials to be worked.
Mounting the Dust Extraction Attachment
(see figure F)
For dust extraction, the dust extraction attach-
ment (accessory) is required. When drilling, the
dust extraction attachment retracts so that the
attachment head is always close to the surface at
the drill hole.
Press the button for depth stop adjustment 9
and remove the depth stop 10. Press button 9
again and insert the dust extraction attachment
into the auxiliary handle 11 from the front.
Connect an extraction hose (diameter 19 mm,
accessory) to the extraction sleeve 15 of the dust
extraction attachment.
The vacuum cleaner must be suitable for the
material being worked.
When vacuuming dry dust that is especially detri-
mental to health or carcinogenic, use a special
vacuum cleaner.
Bosch Power Tools
Adjusting the Drilling Depth on the Dust Extrac-
tion Attachment (see figure G)
The required drilling depth X can also be adjusted
when the dust extraction attachment is mounted.
Insert the SDS-plus drilling tool to the stop into
the SDS-plus tool holder 1. Otherwise, the mov-
ability of the SDS-plus drilling tool can lead to
incorrect adjustment of the drilling depth.
Loosen the wing bolt 19 on the dust extraction
attachment.
Without switching the power tool on, apply it
firmly to the drilling location. The SDS-plus drill-
ing tool must face against the surface.
Position the the guide pipe 20 of the dust ex-
traction attachment in its holding fixture in such
a manner that the head of the dust extraction
attachment faces against the surface to be
drilled. Do not slide the guide pipe 20 further
over the telescopic pipe 18 of the dust extraction
attachment than required, so that as much as
possible of the scale 18 on the telescopic pipe
remains visible.
Retighten the wing bolt 19 again. Loosen the
clamping screw 16 on the depth stop of the dust
extraction attachment.
Move the depth stop 17 on the telescopic pipe 18
in such a manner that the clearance X shown in
the figure corresponds with the required drilling
depth.
Tighten the clamping screw 16 in this position.
English | 11
1 619 929 565 | (23.6.08)