Maintenance; Ordinary Maintenance; Spare Parts; Off Service And Demolition - Rovatti Pompe 4ES Serie Manual De Uso Y Mantenimiento

Elettropompe sommerse da 4"
4" electric borehole pumps
Electropompes immergées 4"
Elektrounterwassermotorpumpen 4"
Bombas eléctricas sumergidas de 4"
8.

Maintenance

8.1 Ordinary maintenance
When respecting foreseen functioning limits, ordinary maintenance for the borehole electric pump is not necessary. Incorrect installation or
unsuitable use always causes failure, undue wears and dangerous damages. Every 1000 hours approx. of functioning it's necessary to
check that operating data are respected. In case of anomalies or variations of operating data refer to chapter 11. Refer also to the informa-
tion reported on the electric motor documentation. Extraordinary maintenance and repairing must be carried out by qualified and skilled
personnel.
For repair operations use only original Rovatti spare parts. When lifting out the electric borehole pump from the well pro-
ceed in reverse of what stated for installation procedures (chapter. 6). Before any intervention it's necessary to disconnect
electric power supply and make sure that it cannot be reconnected inadvertently; earth cables must be disconnected at
the last.
9.

Spare parts

In order to see spare parts tables or to order spare parts please refer to the spare parts catalog "Rovatti Spares Pro" available on www.rovatti.it.
10. Off service and demolition
In case of dismantling and demolition, the pump components are not so dangerous and do not require special precautions. In order to facilitate
recycling, all materials composing electrical system and thermoplastic components shall be separated from the machine.
INFORMATION TO USERS - under Article 13 of Law 25, July 2005, n° 151 "Implementation of Directives 2002/95/EC, 2002/96/EC and
2003/108/EC: Restriction of the use of certain Hazardous Substances in electrical and electronic equipment and Waste of Electrical
and Electronic Equipment"
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 list of different
materials composing the pumps in the standard version reported in the annex.
DON'T WASTE THE ENVIRONMENT WITH OUT OF USE MATERIALS
11.

Troubleshooting

It is important to always check that the installation complies with current regulations and that the operating conditions
comply with the specifications for which the pump was purchased (refer to the identification plate fixed on the machine). The
following is a diagram indicating the most frequent faults and their possible causes / remedies. For any further information
contact the Rovatti Service Centres.
Faults
The electric pump
works but does not
deliver water
Insufficient capacity
and head
Vibrations
and noise
22
MGES4205R2
Possible causes
Lack of water or too low water level in the well
Bored delivery pipe-line or connection leakages
Sanded pump
Obstructed suction grid
Closed gate-valve
Blocked non-return valve
Anticlockwise rotation (only for three-phase electric pumps)
Insufficient pressure of the pump
Damaged hydraulic components
Breakages of: Pump shaft - Motor shaft - Coupling
Anticlockwise rotation (only for three-phase electric pumps)
Considerable lowering of the dynamic level
Partially obstructed suction grid
Obstructed or partially blocked non-return valve
Delivery pipe-line squashed, bent or heavy encrusted
Bored delivery pipe-line or connection leakages
Air or other gas dissolved in the water
Worn hydraulic components of the pump
Presence of gas in the pumped liquid
Worn bushes and/or bearings
Excessive presence of sand or gravel
Air entered the pump due to variation of level
EN
Remedies
Check level and relay efficiency
Disassemble, repair or replace defective parts
Disassemble, clean, drain the well and evaluate convenience of rising the level of
the electric pump
Verify causes and clean
Open the gate-valve
Disassemble, repair or replace
Invert rotation direction
Replace the electric pump with another of higher performances
Disassemble and replace damaged components
Disassemble and replace broken components
Invert rotation direction
Contact skilled well drillers or replace the pump with another of higher
performances
Verify causes and clean
Lift out the electric pump, clean, repair or replace defective components
Disassemble, clean or replace
Disassemble, clean or replace
Contact ROVATTI technicians or skilled well drillers
Lift out the electric pump and repair. Caution!!! Follow scrupulously what foreseen
by warranty conditions
Contact ROVATTI technicians or skilled well drillers
Disassemble and replace worn parts
This condition causes heavy damages
Reset dynamic level height and reduce capacity
Manuale d'uso e manutenzione
Instructions for use and maintenance
Manuel d'utilisation et d'entretien
Betriebs-und Wartungsanleitung
Manual de uso y mantenimiento