20
Start-up
Start-up
6.5 Oil Filling
The pump leaves the factory without oil in the bearing housing. Once assembled, it must be filled, see section 7.3.1 Oil filling.
6.6 Engine Considerations
It is important to check before the first start-up that the technical specifications of the motor, which come on the nameplate,
correspond to the technical characteristics required by the pump and those of the place where the motor is going to operate.
Verify that:
- The characteristics of the mains supply, voltage, number of phases, frequency, and amperage match those of the motor.
- The electrical panel must be suitable for the type of motor drive, direct start or star-delta.
- The degree of insulation and protection of the motor must correspond to the conditions in which it will operate.
Figure 15a
Figure 15b
Figure 15c
Before final start-up, it is necessary to check the direction of rotation to prevent damage to the thrust assembly. The direction of rotation
of the motor is correct when it coincides with the direction indicated by the arrow cast on the pump casing (counterclockwise when
looking at the motor facing the shaft). (counterclockwise when looking at the motor facing the shaft). See section 6.6.2.
6.6.1 Instructions for the Connection of Three Phase Electric Motors
To make a delta connection, the bridges are placed in the electric motor box connecting: U with Z, V with X, W with Y. The
wires from the electric panel to the motor junction box connect the terminals: U to U, V to V, W to W (see fig. 15-a).
To make the star connection connect together the three terminals: X-Y-Z of the junction box and connect the terminals U-V-W
with the corresponding terminals U-V-W on the electrical panel. The power supply terminals R-S-T must be connected to the
power supply busbars or terminals on the electrical panel (fig. 15-b).
!
CAUTION
Electrical
Panel
Electrical
Panel
Electrical
Panel
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