Bosch GAS 15 PS Professional Manual Original página 20

20 | English
– To start the dust extractor, switch on the power tool
connected to the plug socket (3). 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 (4) to the "switch
off" symbol.
Wet vacuuming
Do not use the vacuum cleaner to vacuum combustible
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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
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pump. The vacuum cleaner is designed for vacuuming air
and vacuuming water mixtures.
Note: When wet vacuuming, ensure that the main filter (19)
is removed from the vacuum cleaner.
Steps to Take before Wet Vacuuming
– Open the catches (8) and remove the top part of the va-
cuum cleaner (7).
– 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 (19), out of the top part of the vacuum
cleaner (7).
– Remove the plastic bag (18) or dust bag if necessary.
– Place the wet filter (20) over the filter basket (30).
– Put the top part of the vacuum cleaner (7) on and close
the catches (8).
– Place the rubber lip (22) in the floor nozzle (24).
Vacuuming up liquids
– Switch on the dust extractor (set the mode selector
switch (4) 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 (4) to the "switch off" sym-
bol.
– Empty the container (1).
To prevent mould growth after wet extraction:
– Remove the top part of the dust extractor (7) and leave it
to dry thoroughly.
– Remove the wet filter (20) and also leave this to dry thor-
oughly.
Semi-automatic filter cleaning (see figure G)
The filter cleaning function should be used regularly, and at
the very latest when the suction power is no longer suffi-
cient.
1 609 92A 9KF | (18.04.2024)
How often filter cleaning needs to be carried out will depend
on the type and quantity of dust that has been vacuumed.
With regular use, the maximum conveying capacity will be
maintained for longer.
During semi-automatic filter cleaning (SFC), the air flow is
reversed to clean deposited dust from the flaps of the filter.
A pleated filter with surface dirt is still fully functional. It is
not necessary to clean the flat-pleated filter manually by
shaking or blowing it out; this may even damage the filter.
Triggering the SFC Filter Cleaning
– Use the palm of your hand to close the nozzle or vacuum
hose opening.
– Press the SFC switch (6) 5 times.
Maintenance and Service
Maintenance and Cleaning
Pull the plug out of the socket before cleaning or per-
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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.
To ensure safe and efficient operation, always keep
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the dust extractor and the ventilation slots clean.
In order to avoid safety hazards, if the power supply cord
needs to be replaced, this must be done by Bosch or by an
after-sales service centre that is authorised to repair Bosch
power tools.
Wear a dust mask when servicing and cleaning the va-
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cuum cleaner.
Clean the housing of the dust extractor occasionally with a
damp cloth.
Do not use compressed air to clean the dust extractor.
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The filter or other components may become damaged.
At least once a year a technical inspection of the dust ex-
tractor must be carried out by the manufacturer or someone
who has been trained (e.g. to check for filter damage, to
check that the dust extractor is tight and that the control unit
is in perfect working order).
Cleaning and maintenance after extracting hazardous
substances
– All parts that may have come into contact with the hazard-
ous substances must be considered contaminated.
– Vacuum, wipe down and seal the outside of the dust ex-
tractor thoroughly before removing it from the area con-
taining the hazardous substances.
– Only clean, dismantle and perform maintenance on the
dust extractor if this can be done without endangering
yourself or other persons. Wear personal protective
equipment for cleaning and maintenance tasks. Under-
take the work in a well ventilated room.
– First clean the outside of the dust extractor before dis-
mantling it.
– All parts of the dust extractor that cannot be adequately
cleaned must be disposed of in impermeable bags. Please
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