Bosch Professional GAS 12-25 PL Original Instructions Manual page 21

– To put the dust extractor into operation, switch on the
power tool that is plugged into the electric 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 six 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 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
u
pump. The vacuum cleaner is designed for vacuuming air
and vacuuming water mixtures.
Note: Make sure that both the pre-filter (22) and the main
filter (20) are removed from the vacuum cleaner when carry-
ing out wet vacuuming (see also figures D1 and E1).
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 22)
Automatic filter cleaning
The filter cleaning function should be used regularly, and at
the very latest when the suction power is no longer suffi-
cient.
Bosch Power Tools
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.
– Switch the vacuum cleaner 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 vacuum
cleaner back on.
Maintenance and servicing
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
away the vacuum cleaner. This safety measure prevents
the vacuum cleaner from being started accidentally.
To ensure safe and efficient operation, always keep
u
the dust extractor and the ventilation slots clean.
For the user to carry out maintenance, the vacuum cleaner
needs to be disassembled, cleaned and maintained as far as
this is possible without endangering maintenance personnel
or other persons. Before disassembly, the vacuum cleaner
should be cleaned to prevent any potential hazards. The
room in which the vacuum cleaner is disassembled should
be well ventilated. Wear personal protective equipment
while carrying out maintenance. After completing mainten-
ance, 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
is functioning correctly.
Class L vacuum cleaners which were located in dirty environ-
ments should have their exteriors, as well as all their com-
ponents, cleaned or treated with sealant. When performing
maintenance and repair work, all dirty parts that cannot be
cleaned satisfactorily must be disposed of. Such parts must
be disposed of in impermeable bags in accordance with the
valid provisions for disposing of such waste.
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.
Cleaning the container
– Wipe the container (7) from time to time using a non-ab-
rasive off-the-shelf cleaning product and leave it to dry.
Cleaning the Filters
Regularly emptying the dust container and cleaning the fil-
ters will ensure optimum suction power. If suction power is
not achieved after that, the vacuum cleaner is to be brought
to the after-sales service.
English | 21
1 609 92A 4CP | (09.11.2018)