Maintenance And Care - Kärcher NT 75-1 Originalbetriebsanleitung

Maintenance and care

Danger
First pull out the plug from the mains before
carrying out any tasks on the machine.
Dust extracting machines are safeguards
for the prevention or elimination of hazards
defined in the regulations of BGV A1.
In order to carry out maintenance work,
–
the user must disassemble, clean and
service the unit, in so far as this is pos-
sible without endangering maintenance
personnel and other persons. Suitable
precautions include decontamination
before the unit is disassembled. Pre-
cautions must be taken for local filtered
forced air ventilation at the place where
the unit is dissassembled, the cleaning
of the maintenance surface and suita-
ble protection of the personnel.
The outside of the unit should be
–
cleaned thoroughly and any harmful
substances removed. Alternatively, a
sealed coating may be applied before
the unit is removed from the danger ar-
ea. All unit parts are to be considered
contaminated when they are removed
from the danger area. To avoid distribu-
tion of the dust, you must take the ap-
propriate measures.
In the framework of maintenance and
–
repair work all contaminated objects
that cannot be cleaned satisfactorily
must be disposed of. Such objects must
be disposed of in impermeable bags in
accordance with the valid provisions for
the disposal of such waste.
During the transport and maintenance
–
of the appliance the extraction opening
is to be closed with the connection
socket.
Warning
Safety equipment for preventing hazards
must be serviced and maintained regularly.
This means that the manufacturer's staff or
persons trained by the manufacturer must
check the equipment for proper functioning
at least once a year, i.e. check for leaks, fil-
ter damage, functioning of the controlling
elements, etc.
Danger
You can test the filtration capacity of the de-
vice using the test procedure specified in
EN 60 335–2–69 AA.22.201.2. This test
must be done at least once a year or more
frequently if the national regulations demand
it. If the test results are negative, the test is to
be repeated with a new flat-fold filter.
Note: Industrial vacuum cleaners/dedust-
ers must be maintained as needed, but at
least once per year, repaired as necessary
and checked by a skilled expert (qualified
as per TRGS 519 Nr. 5.4.3, paragraph 2).
The test result must be presented upon re-
quest.
Caution
Risk of damage! Do not use detergents
containing silicone to clean.
No outside help is required for carrying
–
out basic maintenance and cleaning.
The appliance surface and the inside of
–
the container should be cleaned regu-
larly using a damp cloth.
Danger
Risk due to dust hazardous to health. Always
use disposal clothing and P2 or higher
breath-safe masks while carrying out mainte-
nance tasks (such as changing filters).
Exchanging the flat pleated filter
Danger
The dust that has been collected should be
transported in dust-proof containers. No refill-
ing is permitted. The waste containing as-
bestos is to be disposed off according to the
rules and regulations for waste disposal.
Warning
Do not reuse the main filter element after it
has been removed from the appliance.
Non-detachable filters should only be re-
placed in suitable rooms (so-called decon-
tamination stations) by an expert.
Order no. flat-fold filter: 6.904-364.0
Illustration
 Rotate both locking lugs of the filter cov-
er using the screwdriver in the anti-
clockwise direction. The locking lugs
are pushed out.
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EN 23