Bosch GEX Professional 125-150 AVE Manual Original página 24

OBJ_BUCH-1330-001.book Page 23 Wednesday, February 23, 2011 9:55 AM
– 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.
Integrated Dust Extraction with Dust Box
(see figures C–G)
Mount the dust box 7 onto the extraction outlet
12. Turn the dust box in such a manner that its
recesses face against the tips on the extraction
outlet and the dust box can be felt to engage.
The filling level of the dust box 7 can easily be
checked through the transparent container.
To empty the dust box 7, pull it off toward the
rear with a slight twisting motion.
Screw the filter element 6 on and pull it out of
the dust box 7. Empty the dust box.
To loosen the dust, gently strike or tap the filter
element 6 against a firm surface. Clean the la-
mellas of the filter element 6 with a soft brush.
Note: To ensure optimum dust extraction,
empty the dust box 7 in good time and clean the
filter element 6 at regular intervals.
When working vertical surfaces, hold the power
tool in such a manner that the dust box 7 faces
downward.
External Dust Extraction (see figure H)
Mount a vacuum hose 13 onto the extraction
outlet 12. Mount the vacuum hose onto the ex-
traction outlet (as shown in the figure) in such a
manner that the lateral openings on the extrac-
tion outlet remain free. This prevents the power
tool from adhering to the workpiece during
sanding and the surface quality of the work-
piece from being impaired.
Connect the vacuum hose 13 to a vacuum clean-
er (accessory). An overview for connecting to
various vacuum cleaners can be found at the
end of this manual.
Bosch Power Tools
The vacuum cleaner must be suitable for the
material being worked.
When vacuuming dry dust that is especially det-
rimental to health or carcinogenic, use a special
vacuum cleaner.
When working vertical surfaces, hold the power
tool in such a manner that the vacuum hose fac-
es downward.
Auxiliary Handle
The auxiliary handle 1 enables convenient han-
dling and optimal distribution of power, espe-
cially at high removal rates.
Fasten the auxiliary handle 1 with screw 2 to the
casing.
Operation
Starting Operation
Observe the mains voltage! The voltage of
the power source must correspond with the
data on the type plate of the machine.
Switching On and Off
To start the machine, press the On/Off switch 4.
To lock the On/Off switch, keep it pressed and
additionally push the lock-on button 5.
To switch off the machine, release the On/Off
switch 4. When the On/Off switch 4 is locked,
press it first and then release it.
Preselecting the Orbital Stroke Rate
With the thumbwheel for preselection of the or-
bital stroke rate 3, you can preselect the required
orbital stroke rate, even during operation.
1–2 Low stroke rate
3–4 Medium stroke rate
5–6 High stroke rate
The required stroke rate depends on the material
and the working conditions and can be deter-
mined through practical testing.
After longer periods of working at low stroke
rate, allow the machine to cool down by running
it for approx. 3 minutes at maximum stroke rate
with no load.
2 609 932 777 | (23.2.11)
English | 23