Bosch Professional GAS 18V-12 MC Original Instructions Manual page 28

28 | English
should be cleaned to prevent any potential hazards. The
room/enclosure in which the dust extractor is disassembled
should be well ventilated. Wear personal protective equip-
ment 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 dust extractor is tight and that the control unit
is functioning correctly.
Class M dust extractors that have been in dirty environments
should have their exteriors, as well as all their components,
cleaned. Suction, wipe down and seal the outside of the dust
extractor before removing it from the danger zone. 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 accord-
ance with the valid provisions for disposing of such waste.
Cleaning the container
Wipe the container (12) from time to time using a non-abras-
ive off-the-shelf cleaning product and leave it to dry.
Cleaning/replacing filters
The suction power is dependent on the condition of the fil-
ter. Therefore, the filter should be cleaned regularly.
Replace any damaged filters immediately.
– Open the catches (13) and remove the dust extractor lid
(15).
– Take hold of the main filter (32) at the end piece (not at
the flaps). Turn it as far as it will go in the rotational direc-
tion and then remove it (see figure M).
– If the filter is dry:
Tap the main filter (32) on the side of a suitable waste
bin. When doing so, ensure that you do not damage the
flaps on the filter.
To achieve maximum suction power, brush down the
flaps of the filter using a soft brush.
or
If the filter is wet:
Rinse the main filter (32) under running water and then
leave it to dry thoroughly.
or
Replace the main filter (32) if it is damaged.
– Place the main filter (32) over the float cage (34) and
turn it as far as it will go in the rotational direction
the filter holder (35) (see figure B).
Rectifying Errors
Problem Cause
Suction turbine will not switch Rechargeable (31) low on power
on.
On/off switch (14) in
but no Auto-Start Remote GCT ... is
connected
The suction turbine switches Container (12) full
off.
1 609 92A 5N0 | (26.09.2023)
– Replace the dust extractor lid (15) and close the
catches (13).
Make sure that the catches engage firmly.
Replacing castors (see figure X N)
Only use rollers as per EN 12529 (diameter of fastening pin
11 mm).
Check the functionality of the castor brakes before us-
u
ing the dust extractor.
Use the brakes if you want the dust extractor to remain sta-
tionary.
Repairing the Vacuum Hose
You can cut off a section of a vacuum hose (20) that is de-
fective and continue to use the undamaged section.
Wear gloves when repairing the hose. This poses a risk
u
of injury.
To repair the vacuum hose at the dust extractor side (see
figures O−P):
– Loosen the locking ring (49) from the hose
connector (47) by pushing in the retaining lugs with a
screwdriver.
– Pull the locking ring (49) behind the defective area ➊.
– Unscrew the sealing sleeve (48) ➋.
– Cut off the vacuum hose (20) behind the defective area
(see figure P).
– Screw the sealing sleeve (48) back on ➌.
– Push the end of the vacuum house into the hose
connector (47) ➍.
– Push the locking ring (49) onto the hose connector (47)
until it clicks audibly into place ➎.
To carry out a repair at the power tool/nozzle side (see
figure Q):
– Unscrew the sealing sleeve (50) ➊.
– Cut off the vacuum hose (20) behind the defective
area ➋.
– Screw the sealing sleeve (50) back on ➌.
Repairing the Bag Holder Attachment (see figure R)
If the detents (43) for the bag holder (33) are damaged, the
bag holder can also be permanently screwed to the top part
of the dust extractor with commercially available Phillips P4
11 mm screws. If the bag holder (33) is in contact with the
spring (51), the conductivity for the electrostatic discharge
into
is retained.
Corrective measure
Charge or replace battery
Turn on/off switch to position 1
position,
Empty the container
Bosch Power Tools