Maintenance, Cleaning And Decontamination; Main And Hepa Filter Disassembly And Replacement; Main Filter Replacement - Nilfisk cfm 3308 Betriebsanleitung

Maintenance, cleaning and
decontamination
WARNING!
Use only genuine spare parts supplied and authorized
by the manufacturer.
WARNING!
The precautions described below must be taken
during all the maintenance operations, including
cleaning and replacing of the main and HEPA filters.
■ To allow the user to carry out the maintenance
operations, the vacuum cleaner must be disassembled,
cleaned and overhauled as far as is reasonably
possible, without causing hazards for the maintenance
staff or other people. The suitable precautions include
decontamination before disassembling the vacuum
cleaner, adequate filtered ventilation of the exhaust air
from the room in which it is disassembled, cleaning of the
maintenance area and suitable personal protection.
■ The external parts of class H and class M vacuum
cleaners must be decontaminated by cleaning and
vacuuming methods, dedusted or treated with sealant
before being taken out of a hazardous zone.
All parts of the vacuum cleaner must be considered
as contaminated when they are removed from the
hazardous zone and appropriate actions must be taken
to prevent dust from dispersing.
When maintenance or repair procedure are carried out,
all the contaminated elements that cannot be properly
cleaned, must be eliminated.
These elements must be disposed of in sealed
bags according to the applicable regulations and in
accordance with the local laws governing the disposal of
such material.
This procedure must also be followed when the filters
have to be disposed of (main, HEPA and downstream
filters).
Compartments that are not dust-tight must be opened
with suitable tools (screwdrivers, wrenches, etc.) and
thoroughly cleaned.
■ Carry out a technical inspection at least once a year,
e.g.: Check the air filters to find out whether the air-
tightness of the vacuum cleaner has been impaired in
any way and make sure that the electric control panel
operates correctly. This inspection must be carried out by
the manufacturer or by a qualified person.
09/2014
Main and HEPA filter disassembly and
replacement
When the vacuum cleaner is used to vacuum
hazardous substances, the filters become
contaminated, thus:
■ 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 vacuum cleaner will not operate
correctly.

Main filter replacement

1 Vacuum hose
2 Release lever
3 Cover
Check the vacuum cleaner class (L, M, H).
Take care not to raise dust when this operation is carried out.
Wear a P3 mask and other protective clothing plus protective
gloves (DPI) suitable for the hazardous nature of the dust
collected. Refer to the laws in force.
Before proceeding with these operations, turn off the vacuum
cleaner and remove the plug from the power socket.
■ Remove the vacuum hose (1).
■ Use the lever (2) to remove the cover (3) together with
the main filter.
■ Remove the old filter from the cage.
■ Fit the new filter and secure it in the cage with special
clamps.
■ Install the cover and the main filter in the reverse order of
removal.
11
3308 / 3508 / 3558
WARNING!
WARNING!
Figure 15
WARNING!
GB
C67