Operation - Dustcontrol DC 1800 H EX Manual Original

Operation

Always check that the electrical equipment and
potential equalisation cables are undamaged,
and that all accessories are antistatic. Connect to
a power source outside the zone in accordance
with the voltage specifi ed on the rating plate of the
machine.
The fi lter should be cleaned once or twice a day if the
machine is operated continuously or, if the machine
is equipped with a pressure gauge and the needle
is in the red zone.
To clean the fi lter:
1. Start the machine.
2. Disconnect the hose from the suction casing.
3. Close the suction hose tightly, e.g. by pressing
it against the fl oor. Closing the hose produces
maximum negative pressure in the machine.
4. Open the door on the side 3 to 6 times. The air
rushes into the machine and cleans the fi lter
by means of reverse pulse.
5. Open the hose again, and reconnect the
suction nozzle.
6. If the pressure gauge needle is in the green
zone, work can continue. If it is in the red
zone, repeat the reverse pulse cleaning. If
the presusure gauge needle remains in the
red zone after reverse pulse
cleaning has been performed
several times, the fi ne fi lter
(part no. 42398) should be
changed.
Some operations (i.e. those that
that restrict air fl ow) can make the
pressure gauge show a high reading, even when the
fi lter is clean. The machine should never be operated
permanently when the gauge is in the red zone, as
Service
The following precautions should generally
be observed before the start of maintenance
operations:
1. To avoid the spread of dust, before the ma-
chine is removed from the contaminated area,
it must be vacuumed and wiped clean, and the
suction openings should be closed with seal-
ing means such as plugs.
2. All machines must be regarded as being
contaminated if they are removed from the
this poses a risk of overheating. Transition from the
green area to the red area occurs at 1.5 kPa.
The container underneath the cyclone should be
emptied when about 2/3 full or max 20 kg. Release
the two fasteners and remove the container.
Be careful when releasing the fasteners, as they can
open with great force, especially when the material
is heavy. Be aware that emptying the container may
pose a risk of explosion, i.e. an explosive atmosphere
may occur and a static charge may be generated by
the friction of particles against the container. See
CENELEC TR 50404 for the appropriate measures.
When the container is attached back onto the dust
extractor, make sure that the bracket is properly at-
tached to the contact plate. The red arrow markings
must be aligned so that they point towards each other.
hazardous zone. Appropriate measures must
be taken to prevent the spread of dust.
3. When performing maintenance or repair op-
erations, all contaminated items that have not
been cleaned satisfactorily must be disposed
of. Such items must be disposed of in dust-
proof bags in accordance with the provisions
that are applicable to the disposal of waste.
4. Clean the machine before disassembly.
5. (Wherever possible), choose a room with
fi ltered forced ventilation.
DC 1800/2800 H EX - 15 Part No 94169-F