Bosch Professional GAS 35 M AFC Manual Original página 23

– To switch off the dust extractor, set the
mode selector switch (7) to the "switch
off" symbol.
If the acoustic warning signal sounds, the dust extractor
must be checked as described in the "Rectifying faults" sec-
tion.
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 or burning dust. Do not
operate the vacuum cleaner in areas subject to explo-
sion hazards. Dust, vapours and liquids can ignite or ex-
plode.
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: The requirements for the degree of penetration (dust
class M) have only been verified for dry extraction.
Steps to Take before Wet Vacuuming
– Remove the disposal bag (25) or dust bag if necessary.
Note: Use a wet filter bag (accessory), which separates li-
quid from solids, to make disposal easier when vacuuming
water-solid mixtures.
– Fit the rubber lip (28) in the floor nozzle (30) (see "Fit-
ting the rubber lip (wet extraction) (see figure E)",
page 21).
– Switch off the automatic filter cleaning (AFC) (see "Auto-
matic filter cleaning (see figure H)", page 23).
Vacuuming up liquids
– To switch on the dust extractor, set the mode selector
switch (7) to the "extraction" symbol.
The dust extractor is equipped with fill level sensors (37).
The dust extractor shuts down if the maximum fill level has
been reached. Set the mode selector switch (7) to the
"switch off" symbol.
Note: When extracting non-conductive liquids (e.g. drilling
emulsion, oils and fats), the dust extractor will not switch off
when the container is full. The fill level must be constantly
monitored and the container emptied in good time.
If the acoustic warning signal sounds during wet extraction,
the operating reliability of the dust extractor is not affected.
No measures to rectify the fault are necessary.
– To switch off the dust extractor, set the mode selector
switch (7) to the "switch off" symbol.
– To transport the dust extractor, screw the sealing plug (2)
onto the hose adapter (3).
– Empty the container (1).
To prevent mould growth after wet extraction:
– Remove the flat-pleated filter (26) and leave this to dry
thoroughly.
– Remove the top part of the dust extractor (12), open the
filter cover (36) and leave both elements to dry thor-
oughly.
Bosch Power Tools
Automatic filter cleaning (see figure H)
When automatic filter cleaning (AFC) is active, the flat-
pleated filter (26) is cleaned every 15 seconds using blasts
of air (pulsating noise).
The filter cleaning function should be used regularly, and at
the very latest when the suction power is no longer suffi-
cient.
Regular use of the filter cleaning function will increase the
service life of the filter.
In order to achieve an optimum filter service life, deactivate
the automatic filter cleaning function only in exceptional
cases, e.g. when vacuuming pure liquids or using a paper fil-
ter bag.
A flat-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.
Note: The automatic filter cleaning function is switched on
by default when the dust extractor leaves the factory.
It is only possible to switch the automatic filter function on or
off when the tool is switched on.
– Deactivating AFC
Press the AFC button (9).
The control LED (35) will go out.
– Activating AFC
Press the AFC button (9).
The control LED (35) will light up green.
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.
Wear a dust mask when servicing and cleaning the va-
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cuum cleaner.
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.
For the user to carry out maintenance, the dust extractor
needs to be disassembled, cleaned and maintained as far as
this is possible without endangering maintenance personnel
or other persons. Before disassembly, the dust extractor
should be cleaned to prevent any potential hazards. The
room in which the dust extractor is disassembled should be
well ventilated. Wear personal protective equipment while
carrying out maintenance. After completing maintenance,
the maintenance area should be cleaned.
An inspection regarding the dust extraction capability must
be carried out at least once a year by the manufacturer or
someone who has been trained, e.g. to check for filter dam-
age, that the vacuum cleaner is tight and that the control unit
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1 609 92A 6R4 | (02.09.2021)