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Manuale d'uso e manutenzione
Instructions for use and maintenance
Manuel d'utilisation et d'entretien
Betriebs-und Wartungsanleitung
Manual de uso y mantenimiento
10.
Off service and demolition
In case of dismantling and demolition, the pump components are not so dangerous to justify taking special precautions. In order to facilitate
recycling, all materials composing electrical system and thermoplastic components shall be separated from the machine.
Suitable separate collection, followed by decommissioned pump recycling, treatment and environmentally-sound disposal, helps to avoid pos-
sible negative effects on health and the environment and promotes re-use and/or recycling of the materials of which the equipment is made.
Owners who dispose of the product illegally will be liable to the administrative penalties envisaged by the regulations in force. In case of off
service and demolition, follow scrupulously the local antipollution norms.Proceed to the differentiated disposals according to the following list of
different materials composing the pumps in the standard version.
Impeller - Pump body - Support - blade
11.
Spare parts
12.
Troubleshooting
a diagram indicating the most frequent faults and their possible causes / remedies. For any further information contact the Rovatti
Service Centres.
PUMPS WITH OVERGEAR
Faults
Pump does not prime
or capacity
Pump is noisy and
vibrates
EN
Possible causes
Moving parts rusted due to long period of non-use
Foreign bodies inside the pump
Breakage of some internal components
Air inside the suction pipe
Excessive suction head
Too low rotation speed
Wrong rotation (pump driven by electric motor)
Impellers and wear plate worn-out
Pressure in delivery pipe
Increased water temperature in the pump body
Clogged suction grid
Suction pipe reduces the section due to crushing depressure
Rotation speed too low
Excessive suction head
Impeller clogged by foreign body
Air inside the suction pipe
Impellers and wear plate worn-out
Functioning in cavitation
Cast iron
Steel
Rovatti Spares Pro" available on
Remedies
Fill the pump with antirust oil, wait for few minutes and try to move by
hand the pump shaft. Disassemble pump if necessary
Disassemble suction support or pump
Disassemble the pump and replace parts
Check gaskets and connections
Reduce the suction head
Increase the rotation speed
Replace the suction pipe
Invert the rotation
Replace
Breath air by the drainage cock
Fill with cold water
Wash and remove clogging
Replace the suction pipe
Increase the rotation speed
Reduce the suction level
Remove clogging. Disassemble pump if necessary
Check gaskets and connections
Replace
Find causes and reduce suction level if necessary
Disassemble pump, check and replace
Pompe centrifughe per liquami
Slurry centrifugal pumps
Pompes centrifuges pour liquides chargés
Kreiselpumpen für Gülle
Bombas centrífugas para aguas residuales
MOPL165R0
29
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