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6.3.3. Filter cleaning
Note
The used filters and the liquids used for washing are special waste. Take this waste to
authorised collection and disposal
centres
.
It is advisable to regularly replace the synthetic filters as indicated in the Programmed Maintenance Table (item
6.3.1
). If the
filters structure is fully integral, it is possible to regenerate them (instead of replacing them) by putting them into a solution of
industrial detergent and water for about 12 hours. Before re-assembling the filters, dry them with a jet of compressed air or
leave them to dry naturally.
Danger!
The used filters and the seals are special waste. While waiting for disposal, they must be kept in hermetically
closed containers, which must be located far from the working areas.
6.3.4. Internal cleaning
Careful and regular cleaning of all the internal parts (shell, drainage pipe, drainage ring, etc.) ensures high performance and
long life of the air filter.
It is of fundamental importance to periodically check the inside of the centrifuge or the blades of the turbine to
eliminate eventual deposits of metal particles, sludge or other material which could cause loss of balance of the
centrifuge or of the turbine.
Warning
The functioning of the air filter with unbalanced turbine or centrifuge (even if for a short time) could seriously
damage the air filter components.
For the internal cleaning of the air filter and the rotors (either turbine or centrifuge) use a clean brush saturated in a mild
industrial detergent solution. Alternatively standard liquid soaps can be used.
Should the dirt be very resistant, it is advisable to remove the rotor (for rotor dismantling see 6.4) and use the following
alternative cleaning solutions:
-
A jet of steam at a temperature of over 100
°
C.
-
An industrial detergent solution in water, soaking the rotor for at least 12 hours.
Allow the centrifugal device to dry in the open air or dry with a jet of compressed air.
6.4. Special maintenance
Danger!
The special maintenance operations are to be undertaken by qualified technicians only. Skilled electricians should
carry out work on the electrical parts.
Before beginning the maintenance procedure:
•
Position the general switch of the machine tool to
"OFF"
and lock it.
•
Wait at least 3 minutes in order to allow the rotor to come to a complete stop.
•
Disconnect the control device from the plug and socket of the air filter.
•
Place on the machine tool the apposite sign
"Maintenance in progress"
.
•
Wear goggles and protective clothing (gloves, safety shoes, etc.).
6.4.1. General disassembly and reassembly
Warning! Danger!
During the re-assembly and before starting up the air filter again make sure that all the components are correctly
secured and mounted.
In particular, check:
•
The correct tightening of the screws connecting the motor to the relative support.
•
The correct tightening of the screw connecting the rotor to the motor shaft.
EN
