Dry Vacuuming; Wet Vacuuming - Bosch GAS 12-25 Professional Manual Original

– Dusts with an exposure limit of > 1 mg/m
Products that are only sold in AUS and NZ: Use a resid-
u
ual current device (RCD) with a nominal residual current
of 30 mA or less.

Dry vacuuming

Note: When carrying out dry extraction, ensure that both the
pre-filter (22) and the main filter (20) are inserted into the
dust extractor.
Vacuuming up dust deposits (GAS 12-25)
– To switch on the vacuum cleaner, set the
on/off switch (1) to the "on" symbol.
– To switch off the vacuum cleaner, set the
on/off switch (1) to the "off" symbol.
Extracting dust deposits (GAS 12-25 PL)
– To switch on the dust extractor, set the
mode selector switch (1) to the "extraction"
symbol.
– To switch off the dust extractor, set the
mode selector switch (1) to the "switch off"
symbol.
Extracting dust that accumulates from working power
tools (GAS 12-25 PL) (see figure I)
There must be a sufficient air exchange rate (L) in the
u
room when the exhaust air comes back into the room.
Be aware of the corresponding national regulations.
The dust extractor has a plug socket with a pro-
tective earth contact (2) that can be used to
connect an external power tool. Observe the
maximum permitted connected load of the con-
nected power tool.
– GAS 12-25 PL: Fit the extraction adapter (16) .
– Insert the dust extraction adapter (16) into the extraction
outlet of the power tool.
Note: When working with power tools that have a low air
feed into the vacuum hose (e.g. jigsaws, sanders, etc.), the
false air intake (32) of the dust extraction adapter (16) must
be opened. This will ensure that the semi-automatic filter
cleaning function works correctly.
To do this, turn the ring above the false air intake (32) until
the opening is at its maximum size.
– To activate the automatic start/stop
function of the dust extractor, set the
mode selector switch (1) to the "auto-
matic start/stop" symbol.
– To start the dust extractor, switch on the power tool
connected to the plug socket (2). The dust extractor will
start automatically.
– To stop dust extraction, switch the power tool off.
The automatic start/stop run-on function will run for up
to 6 seconds longer in order to extract the remaining
dust from the vacuum hose.
Bosch Power Tools
3
– To switch off the dust extractor, set the
mode selector switch (1) to the "switch
off" symbol.

Wet vacuuming

Do not use the vacuum cleaner to vacuum combustible
u
or explosive liquids, such as petrol, oil, alcohol or
solvents. Do not vacuum hot, burning or explosive
dust. Do not operate the vacuum cleaner in areas sub-
ject to explosion hazards. Dust, vapours and liquids can
ignite or explode.
The vacuum cleaner must not be used as a water
u
pump. The vacuum cleaner is designed for vacuuming air
and vacuuming water mixtures.
Note: When carrying out wet extraction, ensure that both
the pre-filter (22) and the main filter (20) are removed from
the dust extractor.
Steps to Take Before Wet Vacuuming
– Open the catches (9) and remove the top part of the va-
cuum cleaner (10) (see figure C).
– Remove the pre-filter (22) from the container (7).
– Remove the plastic bag (19) or dust bag if necessary.
– Turn the filter holder (28) as far as possible in the direc-
tion of rotation
the main filter (20), out of the top part of the vacuum
cleaner (10).
– Put the top part of the vacuum cleaner (10) on and close
the catches (9).
– Place the rubber lip (23) in the floor nozzle (25).
Vacuuming up liquids
– Switch the vacuum cleaner on (GAS 12-25: On/off switch
(1) to "on"; GAS 12-25 PL: Mode selector switch (1) to
the "vacuuming" symbol).
The dust extractor is equipped with a float. Extraction is
stopped when the maximum filling level is reached.
– Set the on/off switch (1) to "off" (GAS 12-25) or set the
mode selector switch (1) to the "switch off" symbol
(GAS 12-25 PL).
– Empty the container (7).
To prevent mould growth after wet vacuuming: Cleaning the
wet filter
Semi-automatic filter cleaning
The filter cleaning function should be activated at the very
latest when the suction power is no longer sufficient.
How often filter cleaning needs to be carried out will depend
on the type and quantity of dust that has been extracted.
With regular use, the maximum conveying capacity will be
maintained for longer.
– Switch the dust extractor off for 6–10 seconds and then
on again. Repeat this several times in succession.
The pre-filter (22) is cleaned using blasts of air when it is
switched off.
English | 13
and take the filter holder, together with
1 609 92A 6PH | (31.05.2021)