33
CLEANING
TYPE OF SPECIALIZATION REQUIRED
Specialized worker with experience of machines and trained regarding accident prevention measures.
SITUATIONS OF DANGER
These are possible only on failure to follow the manual instructions and use the adequate individual items of protection described in this manual.
PREVENTIVE MEASURES
Cut off the electricity supply and carry out the protection measures against undesired start up.
Discharge the condensation inside the volute making it flow away.
Adopt the safety measures for the type of fluid conveyed from the fan (acids, bases, toxic, harmful, corrosive, etc…)
RECOMMENDED PRODUCTS
Use only and exclusively compressed air if the appliance is used to convey air with presence of gas/vapours without particles in suspension.
Should the appliance take in vapours of particular chemical substances, refer to the safety file of the substance itself, to individuate the most suitable product for cleaning.
BEHAVIOUR TO BE ADOPTED
1. Stop the appliance by cutting off the electricity supply.
2. Gain access to the internal part of the volute by disassembling it as described in the relative chapter
3. Clean the internal parts of the volute and of the impeller using compressed air or specific products necessary for air with presence of gas/vapours.
4. Assemble the volute as described in the relative chapter
DISMANTLING
SITUATIONS OF DANGER
Connected to the fact that some of the parts of the appliance are heavy.
PARTS, ELEMENTS, SUBSTANCES THAT REQUIRE PARTICULAR PROCEDURES
No part of the appliance must be disposed of in the environment.
Every part, component or group of components must be grouped in accordance to the type of material.
For the modality to be followed and the means adopted follow the prescriptions of the law in force at the date of dismantling.
Adopt the safety measures in accordance to the type of fluid conveyed by the fan (acids, bases, toxic, harmful, corrosive, etc…)
TERMINOLOGY
ASSEMBLY: (also to associate to assembly and disassemby)
Indispensable notions for installation, maintenance, reparations and possible transportation and dismantling.
INSTALLATION: (also to associate to activation)
Information on how to arrange the machine in accordance to the operation and maintenance requirements etc in conditions of safety. Both for the purposes of machine needs
and for the situations on the site of destination.
CALIBRATION: (to associate also to checks and tuning)
Operations and indications relative to correct management of the regulations of the appliance and of the method of verification.
USE: (to associate also to activation)
All the necessary information for conduction distinguishing all the possible conditions of operation: manual, automatic, stand by, emergency, start up, stop etc. including the
indications for first start up.
MAINTENANCE:
Normal verifications and restoration of the conditions of optimal operation, especially referred to situations of predictable consumption and/or wear. Must be
carried out periodically.
REPARATION:
Interventions to restore the conditions of optimal operation, after a breakage. Where applicable the precautions needed for critical situations must be indicated.
FAN ASSEMBLY AND DISASSEMBLY
LEVEL OF SPECIALIZATION REQUIRED
The operations described in this chapter are mentioned again in different parts of the manual. The specialization is already specified at the beginning of the chapter.
PRECAUTIONS TO BE ADOPTED
WARNING: follow the indications in this manual.
WARNING: wear the appropriate accident prevention clothing.
BEHAVIOUR TO BE ADOPTED
DISASSEMBLY
1. Stop the appliance by cutting off the electricity supply.
2. Remove the aspiration and return tube from the appliance.
3. Unscrew the bolts that fix the volute to the support structure.
4. Unscrew the anchor screw of the impeller on the electric motor shaft.
5. Extract the impeller.
6. Unscrew the bolts that fix the electric motor.
7. End of disassembly.
ASSEMBLY
1. Screw the anchor screws that fix the electric motor.
2. Assemble the impeller on the motor shaft.
3. Screw the anchor screws of the impeller on the shaft of the electric motor.
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