Pump-Motor Coupling; Flanges And Shaft Projection; Coupling - Rovatti Pompe 4ES Série Manuel D'utilisation Et D'entretien

Manuale d'uso e manutenzione
Instructions for use and maintenance
Manuel d'utilisation et d'entretien
Betriebs-und Wartungsanleitung
Manual de uso y mantenimiento
6.2 Pump-motor coupling
6.2.1

Flanges and shaft projection

For pump-motor coupling follow instructions concerning both the pump and the motor. 4" electric borehole pumps 4ES series
are fitted to be coupled to submersible motors with flange and shaft projection complying with Nema norms. Before coupling be sure
that flange and shaft extension coincide and verify that motor and pump rotate in the same direction.
6.2.2

Coupling

For pump-motor coupling proceed as follows and wear protective gloves during all operations:
- Verify that the rotor of motor and pump shaft are turning freely by hand. If you make use of standard tools like pliers, screwdrivers or pins,
protect coupling surfaces by suitable tape to prevent damages.
- Clean carefully surfaces to be coupled, smooth when necessary and remove paint in excess, if any.
- Place the motor in vertical position checking its stability during the whole coupling operation.
- Use the suitable equipment to lift the pump and when, perfectly vertical over the motor, lower it slowly taking care that the motor shaft enters
freely into the pump coupling (fig. 3). Protect your hands during this operation.
- Pilot coupling keeping the hands outside the pump, far from flanges.
- Verify that electric cables of the motor are in correspondence with relevant pump seats. In case of motors with splined shaft projection, we
suggest to lubricate the coupling splines with a light coat of antipollution and waterproof grease, to prevent wearing by presence of sand.
- Screw diagonally securing screw, possibly by dynamometric spanner (fig. 4), at 18Nm.
- Adjust electric cables outside the pump and cover them by the suitable cable guard (fig. 5).
- Should the assembled group be longer than 180 cm, for positioning it horizontally or lifting it vertically, make use of an auxiliary
support in order to avoid damages due to bending stress (fig. 6).
Pump-motor coupling
fig. 3
Pump-motor coupling
fig. 5
EN
Pump-motor coupling
fig. 4
Pump-motor coupling
fig. 6
Elettropompe sommerse da 4"
4" electric borehole pumps
Electropompes immergées 4"
Elektrounterwassermotorpumpen 4"
Bombas eléctricas sumergidas de 4"
MGES4205R2
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