Karcher NT 80-1 B1 M S - Manual (Page 16)

– 6
ƽ 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 disassembled, the cleaning of
the maintenance surface and suitable
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 re-
moved from the danger area. All unit
parts are to be considered contaminated
when they are removed from the danger
area. To avoid distribution of the dust, you
must take the appropriate measures.
– In the framework of maintenance and re-
pair work all contaminated objects that
cannot be cleaned satisfactorily must be
disposed of. Such objects must be dis-
posed of in impermeable bags in accord-
ance with the valid provisions for the dis-
posal of such waste.
– During cleaning or repair of the vacuum
cleaner after a period of inactivity, one
must expect a friction-sensitive, explo-
sive-containing crust. This crust must
first be removed with moisture.
ṇ 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.
– 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.
ƽ DANGER
Risk due to dust hazardous to health. Al-
ways use disposal clothing and P2 or high-
er breath-safe masks while carrying out
maintenance tasks (such as changing fil-
ters).
ƽ DANGER
Risk of explosion. Due to hazardous reac-
tions of oxidants such as chlorates and per-
chlorates with organic, combustible sub-
stances, an enrichment of oxidants in the
filter must be prevented by frequent dispos-
al.

Release the container locks on both
sides by pulling them upwards.
 Remove the suction head with handle
and keep it on the rear side.
 Unscrew domed cap nut and lift off
earth cable with both serrated lock
washers.
 Unscrew the knurling screw.
 For a dust-free exchange, place a plas-
tic bag over the cartridge filter.
 Unscrew the cartridge filter and replace
it with a new one.
 Thread on serrated washer on grub
screw.
 Attach earth cable lug.
 Thread on second serrated lock wash-
er.
 Screw on domed cap nut and tighten.
 Attach the suction head to the container
and lock it with the container locks.
ƽ DANGER
Risk of explosion. Due to the propellant res-
idue, the cartridge filter must be burned or
burned out. When burning cartridge filters
containing chlorate are burned, explosions
can be expected.
Maintenance and care
Change cartridge filter
16 EN