Dust/Chip Extraction - Bosch GBS 75 AE Professional Original Instructions Manual

OBJ_BUCH-459-003.book Page 18 Thursday, December 17, 2009 2:45 PM
18 | English
Assembly
Before any work on the machine itself, pull
the mains plug.

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.
External Dust Extraction
Insert a vacuum hose onto the extraction outlet
10. Connect the vacuum hose to a vacuum
cleaner. See the overview for connecting to var-
ious vacuum cleaners at the end of these oper-
ating instructions.
The vacuum cleaner must be suitable for the ma-
terial being worked.
When vacuuming dry dust that is especially det-
rimental to health or carcinogenic, use a special
vacuum cleaner.
Integrated Dust Extraction with Dust Bag
For small sanding jobs, a dust bag 7 (accessory)
can be connected. Attach the sleeve of the dust
bag firmly onto the outlet piece 10. To maintain
optimum dust collection, empty the dust bag 7
in good time.
2 609 932 722 | (17.12.09)
Changing the Sanding Belt
(see figure A)
– Completely pivot out the clamping lever 3.
The sanding belt 2 is now loose and can be
removed.
– Mount the new sanding belt 2. Pay attention
that the direction of the arrows on the inside
of the sanding belt correspond with the ar-
row direction on the machine housing.
– Pivot the clamping lever 3 back to its initial
position.
– Pick up the power tool and switch it on. Ad-
just the belt run with adjustment knob 9 until
the edge of the sanding belt runs flush with
the guide plate 14.
Pay attention that the sanding belt 2 does not
move excessively and make contact with the
housing. Check the belt run regularly and read-
just with the adjusment knob 9.
Selecting the Sanding Belt
Depending on the material to be worked and the
required rate of removal, different sanding belts
are available:
Grain size
For the working of all
wooden materials
For coarse-sanding,
e. g. of rough, un-
planed beams and
boards coarse
For face sanding and
planing small irregu-
larities medium 80, 100, 120
For finish and fine
sanding of hard
woods fine
40—240
40, 60
180, 240
Bosch Power Tools