Main And Absolute Filter Disassembly And Replacement - Nilfisk 3707 Manuel D'instructions

How to replace the Safe Bag
Figure 13
■ Remove and put the vacuum hose in a safe and dust-free
place.
■ Close the inlet by using the relevant cap (if equipped).
■ Release the dust container.
■ Close the Safe Bag by pulling the "guillotine" seal (2).
■ Close the plastic bag hermetically using the relevant band
(3).
■ Use the sticky tape (4) to close the bottom of the plastic
bag.
■ Remove the relevant connection (5) of the bag from the
inlet.
■ Insert a new safe bag, making sure the vacuum inlet is
well connected to the bag attachment, to grant the sealing.
■ Wrap the plastic bag around the dust container external
wall.
■ Place the dust container in the vacuum cleaner.
How to replace the Longopac
Figure 14
■ Turn the bag full of dust (1) on itself to obtain a section of
coiled bags to be tightened with two clamps (2).
■ Place the two clamps at a distance of 50 mm between
them, then with a pair of scissors cut between the two
clamps.
■ Remove the bag full of dust (1) and place the new section
of Longopac (3).
®
How to replace the Longopac® for machines that
handle dusts that are hazardous to health.
Figure 15
■ Prepare the bag holder with the inside part upwards and
insert the Longopac inside the groove on it. Pull off the
®
Longopac inner end for at least 250 mm, put the strap
®
around the support as shown in the figure, tighten it by
leaving free the excess part of the inner end pulled off
previously. Properly arrange the excess Longopac
the groove (1).
■ Pull off the Longopac
®
close it with the proper band (3).
■ Draw near the bag holder to be placed under the hopper
cone, insert the pins into the slots and turn the system to
lock it at the upper cylinder (4).
■ Pull down the bag closed by the band and lay it on the
tray. Then, by means of the 2nd supplied belt, fasten the
inner end (250 mm-long), which have been previously
removed, above the gasket on the hopper (5).
®
inside
®
(2) outer end, turn it down and
3707 - 3707/10 - 3907 - 3907W - 3907/18
Main and absolute filter disassembly and
replacement
When the machine is used to vacuum hazardous
substances, the filters become contaminated, therefore:
■ Work with care and avoid spilling the vacuumed
dust and/or material;
■ place the disassembled and/or replaced filter in a
sealed plastic bag;
■ close the bag hermetically;
■
dispose of the filter in accordance with the laws
in force.
Filter replacement is a serious matter. The filter must be
replaced with one of identical characteristics, filtering
surface and category.
Otherwise the machine will not operate correctly.
Before proceeding with these operations, turn off the
machine and remove the plug from the power socket.
Before performing these operations, clean the filter
as described in the "Maintenance, cleaning and
decontamination" paragraph.
Take care not to raise dust during this operation. Wear
a P3 mask and other protective clothing plus protective
gloves (DPI) suited to the hazardous nature of the dust
collected, refer to the laws in force.
Reassemble with care to avoid trapping your hands
between the vacuum unit and the container. Use gloves
that provide protection against mechanical risks (EN
388) with a level of protection CAT. II.
Do not use the Class H filter again after having removed
it from the machine.
Primary filter replacement, for machines equipped
with manual cleaning system
■ Remove the hose (1) from the upper inlet.
■ Release the stop (2) and unscrew the filter shaker knob
(3).
■ Release the two closing hooks (4) and remove the cover
(5).
■ Lift the filter (6), unscrew the clamp (7) and remove the
ring (8).
■ Remove the cage (9) and turn the filter upside down.
■ Cut the clamps (10) and detach the cage from the filter.
■ Fit the filter catch and retention ring of the old filter on to
the new one.
■ Insert the cage (9) and fix it to the filter by means of the
clamps (10) on the bottom of the filter itself.
■ Fit the filter into the filtering chamber, then mount the cover
(5) and lock it in place with the two fastening latches (4).
15
CAUTION!
CAUTION!
CAUTION!
CAUTION!
CAUTION!
CAUTION!
Figure 16
GB
C65