Nilfisk VHS110 Z22 Manual De Instrucciones página 37

■ Reinstall the deck and lock it with the closing band (1).
Upstream absolute filter replacement
Figure 11
■ Clean the primary filter as described in the "Filter cleaning"
section.
■ Release the closing band (1).
■ Lift the deck and disconnect the grounding braid (2) via
the knob (3).
■ Remove the absolute filter (4) by unscrewing the nut (5).
■ Cover the absolute filter (4) with a plastic bag, close the
bag tightly and dispose of the filter in accordance with
current legislation.
■ Insert a new absolute filter (4) with the same filtering
characteristics as the removed one.
■ Lock the absolute filter with the nut (5).
■ Reconnect the grounding braid (2) via the knob (3).
■ Reinstall the deck and lock it with the closing band (1).
Replacing the motor cooling filters
Figure 12
■ Adjust the tightening devices and remove the covers (1)
■ Remove the absolute filter (2) and the related gasket (3).
■ Cover the absolute filter (2) with a plastic bag, close the
bag tightly and dispose of the filter in accordance with
current legislation.
■ Insert a new absolute filter (2) and the related gasket (3)
the same filtering characteristics as the removed one.
■ Refit the covers (1) and lock them into place, using the
tightening devices.
Immersion Separator
Figure 13
The immersion separator is designed to be used for St3
explosion class dust, that is to say dust with value of Kst >
300 bar m/s (ISO 6184/1 – IFA classification: http://staubex.
ifa.dguv.de/?lang=e), and/or dust with an ignition energy
lower than 1 mJ.
CAUTION!
In addition to the above and for all applications involving
MIE<1mJ, in addition to the use of the immersion
separator, any national restrictions may be required by
local regulations. Check with the appointed authorities.
In addition, specific countermeasures must be taken on
the machine or in the production process to be able to
safely vacuum combustible dust.
Nilfisk customer service can suggest possible measures
to increase safety when operating the machine.
Use
The immersion separator comprises two baskets: one on the
bottom to collect the vacuumed dust, and one on the top to
keep the coalescent filter in place.
■ Remove the upper basket (1).
■ Unscrew the closing band (2), remove it and remove the
clamp gasket (3).
■ Remove the collection basket (4) and make sure the
exhaust valve (5) is closed.
■ Pour mineral oil (11L, e.g. Mobil Velocite Oil No. 6) into
the separator (6) and check that the level reaches the min
indicator on the level control (7)
■ Insert the collection basket (4) into the separator (6).
■ Restore the connection between basket (4) and separator
(6), insert the clamp gasket (3) and place back the closing
band (2).
■ Put the filter basket back in place onto the internal flange
of the separator.
■ Insert the separator under the filter chamber.
■ Connect the vacuum hose to the inlet (8) of the separator.
■ Turn on the machine and vacuum the dust.
■ Stop vacuuming dust when the oil level reaches the max.
mark.
The separator is equipped with an automatic stop device.
Once the maximum level of collected material has been
reached (approximately 4-5 L), the machine will stop
vacuuming and the process must be interrupted.
Emptying the container
■ Switch off the machine and disconnect the vacuum hose.
■ Remove the separator and move the container to a
suitable area for disposal/recovery of the material.
■ Place the separator on a workbench in a lifted position to
allow easy emptying of the liquid.
■ Place a container near the drain valve (5).
■ Open the drain valve (5) and wait until the separator has
fully emptied of the inerting liquid.
It is advisable to interrupt the draining operation once the
liquid has become muddy.
It is advisable to install an additional filter on the container
in order to further filter the inerting liquid to allow its correct
disposal.
■ Remove the upper basket (1), unscrew and remove the
clamp (2) and its gasket (3).
■ Using the lifting strap provided, slowly lift the material
collection basket (4).
■ Wait a few seconds to allow more fluid liquid to drain
through the slots at the base of the basket (4). If necessary,
tilt it slightly.
■ Remove the top cover of the basket and, if necessary, the
slush filter, if installed.
■ Wash all contaminated parts, taking care to rinse
thoroughly with cold water to remove all traces of
vacuumed material / inerting liquid.
■ Assemble the components in the reverse order of
disassembly; before reassembling, thoroughly dry all the
parts that were washed.
■ Restore the container and attach it to the machine before
using it again.
15
VHS110 Z22
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IT
GB
F
D
E
C421