Bosch GAS Professional 12-25 Original Instructions Manual page 11

Noise/Vibration Information
Noise emission values determined according to
EN 60335-2-69.
Typically the A-weighted sound pressure level of the dust ex-
tractor is 76 dB(A). Uncertainty K = 2 dB. The noise level
when working can exceed the volume stated. Wear hearing
protection!
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 60335-2-69:
2 2
a < 2.5 m/s , K = 1.5 m/s .
h
Assembly
Pull the plug out of the socket before cleaning or per-
u
forming maintenance on the vacuum cleaner, making
tool adjustments, changing accessories or putting
away the vacuum cleaner. This safety measure prevents
the vacuum cleaner from being started accidentally.
Fitting the vacuuming accessories (see figure A)
The vacuum hose (15) is equipped with a clip system which
can be used to connect vacuuming accessories (dust extrac-
tion adapter (16), curved nozzle (17)).
Fitting the nozzles and tubes
– Push the curved nozzle (17) onto the vacuum hose (15)
until you hear both snap fasteners (27) on the vacuum
hose engage.
– Then attach the required extraction accessory (floor
nozzle, crevice nozzle, suction tube, etc.) firmly to the
curved nozzle (17).
– To remove the accessory, press the snap fasteners (27)
inwards and pull apart the components.
Fitting the dust extraction adapter (GAS 12-25 PL)
– Push the dust extraction adapter (16) onto the vacuum
hose (15) until you hear both snap fasteners (27) on the
vacuum hose engage.
– To remove the adapter, press the snap fasteners (27) in-
wards and pull apart the components.
Fitting the vacuum hose
Vacuuming function (see figure B1)
– Push the vacuum hose (15) into the hose connection
piece (3) and turn it as far as possible in the direction of
rotation .
Note: The friction generated by the dust in the vacuum hose
and accessory during extraction causes an electrostatic
charge that the user may experience as static discharge (de-
pending on environmental factors and their physiological
state).
Bosch generally recommends using an anti-static vacuum
hose (accessory) to vacuum up fine dust and dry materials.
Blowing function (see figure B2)
The vacuum cleaner has a blowing function. Do not
u
blow exhaust air out into the open air. Only use the
Bosch Power Tools
blowing function with a clean hose. Dust can be hazard-
ous to health.
For the blowing function, only insert the blowing hose (34)
(accessory) with the appropriate attachment, as illustrated
here. The vacuum hose supplied must not be used for blow-
ing.
– Switch on the vacuum cleaner for at least 5 seconds
(GAS 12-25: On/off switch (1) to "on"; GAS 12-25 PL:
Mode selector switch (1) to the "vacuuming" symbol) to
clean the vacuum hose (15) of dust deposits.
– Turn the vacuum hose (15) as far as possible in the direc-
tion of rotation and pull it out of the hose connection
piece (3).
– Push the blowing hose (34) into the hose connection
piece (13) and turn it as far as possible in the direction of
rotation .
Removing/Inserting the Pre-filter
The pre-filter (22) prevents coarse dirt from getting through
and consequently extends the lifetime of the main filter. The
pre-filter must be removed from the container if you intend
to carry out wet vacuuming or to clean the main filter.
Grasp the pre-filter (22) by the handle (28) for easy re-
moval.
Removing the Pre-filter (see figure D1)
– Open the catches (9) and remove the top part of the va-
cuum cleaner (10) (see figure C).
– Take the pre-filter (22) out of the container (7) by its
handle (28).
Inserting the Pre-filter (see figure D2)
– Insert the pre-filter (22) in the container (7), making sure
that the arrow is pointing towards the hose connection
piece (3).
– Put the top part of the vacuum cleaner (10) on and close
the catches (9).
Removing/Inserting the Main Filter
The main filter (20) is a HEPA pleated filter with extremely
high filtration performance for cleaning exhaust air. You
need to remove the main filter from the container if you in-
tend to carry out wet vacuuming.
Removing the Main Filter (see figure E1)
– Open the catches (9) and remove the top part of the va-
cuum cleaner (10) (see figure C).
– Turn the filter holder (29) as far as possible in the direc-
tion of rotation and take the filter holder, together with
the main filter (20), out of the top part of the vacuum
cleaner (10).
Inserting the Main Filter (see figure E2)
– Place the filter holder (29), together with the main
filter (20), over the filter basket (30) and turn the filter
holder (29) as far as possible in the direction of rotation
.
English | 11
1 609 92A 7GW | (05.07.2022)