en – Original Instructions
e-IXP, e-IXPC, e-IXPF series – Additional Installation, Operation and Maintenance Instructions
25
5.2
Lubrication
1.
Identify the lubrication type for the unit bearings by reading the last letter of the
identification code:
•
G = with grease, standard
•
O = with oil, optional.
2.
If the lubrication type is grease, the unit is delivered already filled with grease.
3.
If the lubrication type is oil, before starting the unit fill:
•
The bearing support, see paragraph 6.2.3or
•
The oiler, optional.
5.3
Checking the rotation direction
WARNING: Temperature increase due to contact between rotating and fixed components
Checking the direction of rotation by running the unit dry is strictly forbidden.
Preparing the unit
1.
Check that all the operations described in the previous paragraphs have been completed
correctly.
2.
Fill and purge the pump unit and the suction pipe.
3.
Shut off the discharge on-off valve almost completely.
4.
Fully open the suction on-off valve.
Checking the rotation direction
1.
Locate the arrow on the adapter, the coupling or the cover, to determine the correct
direction of rotation of the motor.
2.
Start the unit.
3.
Check the rotation direction through the motor cover.
4.
Stop the unit.
5.
In case of incorrect rotation direction:
•
Disconnect the power supply
•
Invert two of the three wires of the power supply cord.
6.
Check the direction of rotation again.
5.4
Start-up
1.
Check that all the operations described in the previous paragraphs have been completed
correctly.
2.
Shut off the discharge on-off valve almost completely.
3.
Fully open the suction on-off valve.
4.
Start the unit.
5.
As soon as the motor reaches full speed, gradually open the discharge on-off valve and
adjust it until the duty point is reached.
6.
With the unit in operation, check that:
•
No liquid is leaking from the unit or piping system
•
The nominal pressure is higher than the maximum pressure delivered by the unit
•
The current absorbed is within the rated limits.
5.5
Stopping
1.
Close the discharge on-off valve: If the discharge line is equipped with a check or non-
return valve, the on-off valve can stay open.
2.
Stop the unit.
3.
Check that the motor stops and that it does not turn in the opposite direction.
4.
Gradually re-open the valve and check that the motor remains still.
