Maintenance And Service - Bosch GAS 12-25 PL Professional Notice Originale

20 | English
To ensure optimum suction power, you must always fully un-
wind the vacuum hose (15) from the top part of the dust ex-
tractor (10).
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.
Extracting dust deposits
– 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 (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.
– Fit the dust 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.
– 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
1 609 92A 60E | (01.10.2020)
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 and take the filter holder, together with
the main filter (20), out of the top part of the vacuum
cleaner (10).
– Place the wet filter (21) completely over the filter basket
(29).
– 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 on the dust extractor (set the mode selector
switch (1) to the "extraction" symbol).
The dust extractor is equipped with a float. Extraction is
stopped when the maximum filling level is reached.
– Set the mode selector switch (1) to the "switch off" sym-
bol.
– Empty the container (7).
To prevent mould growth after wet extraction: (see "Clean-
ing the wet filter", page 21)
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.
– To work after cleaning the filter, switch the dust extractor
back on.

Maintenance and Service

Maintenance and Cleaning
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
Bosch Power Tools