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Use and installation instruction manual
Check: manually turn the shaft and pay attention to any metallic noises, indicating
potential coupling problems. If so, contact the Manufacturer.
Assemble the coupling cover guards.
6.4.3 Pumps above 4 kW
INSTALLING THE MOTOR (fig. A20)
Check that the flexible coupling insert is inside the hole in the intermediate shaft
of the pump.
Install the unified tab into the motor shaft slot.
Apply grease to the new motor's shaft, around its entire circumference.
Place the motor on the upper flange of the pump. Secure the motor to the pump
using the screws. Tighten to the indicated tightening torque.
Assemble the coupling cover guards.
Put the guards back in at the end of the operations, if they have been
removed.
6.5 Additional protections and guards
• The surfaces of the electric pump may reach high temperatures depending on
the temperature of the pumped liquid. If deemed necessary, provide guards to
prevent accidental contact, without interfering with the normal functionality of
the machine (e.g. motor cooling).
• High-speed liquid splashes may be generated in the event of breakage,
installation errors or during filling operations. Provide appropriate fixed or
temporary guards, in the event that liquid spills can be dangerous or harmful
to human or animal health.
6.6 Accessories
• hydraulic connections kit: they enable connecting the hydraulic part to the
pipes (according to the type of connection desired).
• horizontal installation kit for vertical pumps: enables installation of the pumps
in a horizontal position, ensuring correct operation (fig. A11-B)
• assembly kit for two-pump high pressure units: enables the hydraulic
connection between the two pumps of the high pressure unit (fig. A8-B)
• optional thrust bearing unit kit for pumps up to 4 kW.
7 COMMISSIONING
Splashes of liquid dangerous to people or things may occur.
Do not start the pump without the coupling guards correctly installed.
During operation, the external surfaces of the pump and motor may
exceed 40°C (104°F). Do not touch the unit without adequate protections.
Do not place flammable material near the pump.
WARNING: The electric pump must NOT be started before filling. Its dry use may
irreparably damage the mechanical seal.
7.1 Priming
NOTE: It may be required to remove the coupling cover guards to perform this
operation.
Restore the guards immediately after the operation is completed.
Case with liquid level above the pump (B in fig. A5):
Close the delivery valve (8 in fig. A5).
• Loosen the pin on the filler cap (detail 1 in fig. A3).
• Open the suction shut-off valve (4 in fig. A5) to allow the liquid to enter, wait
until the water comes out of the side hole of the cap. Loosen the insert on the
drain plug (detail 3 or 4 in fig. A3) to facilitate filling.
• Tighten the filler cap pin and the drain plug insert.
Case with liquid level below the pump (A in fig. A5):
• Close the delivery valve (8 in fig. A5).
For versions 1/3/6/10:
• Remove the filler cap completely (2 in fig. A3. Loosen the insert on the drain
plug (detail 3 or 4 in fig. A3) to facilitate filling.
• Using a funnel, fill the pump until the water comes out, (it may be required to
repeat the operation several times).
• Tighten the filler and drain caps (tightening torques in fig. A3).
For versions 15/20/30/45/65/95:
• Remove both filler caps completely (2 and 5 fig. A3). Loosen the insert on the
drain plug (detail 3 or 4 in fig. A3) to facilitate filling.
• Using a funnel, fill the pump in one of the two holes until the water comes out
(it may be required to repeat the operation several times).
• Tighten the filler and drain caps (tightening torques in fig. A3)
7.2 Pump start-up
Before start-up check that:
• The electric pump is correctly connected to the power supply,
• The pump is correctly primed (see the previous paragraph),
• The delivery shut-off valve (8 in fig. A5) is closed and the suction valve (4 in
fig. A5) is open,
• Start the motor,
• Gradually open the valve on the delivery side of the pump,
• After a few seconds of noisy operation, the pump must operate silently and
regularly, without any pressure changes to eject any air under the conditions
required.
Otherwise, refer to the troubleshooting table (Chap. 10).
7.3 Emptying the pump
Before operating, make sure that the pump is stopped and check if the
liquid is pressurised.
Should it be required to empty the pump for maintenance or for long periods of
inactivity:
• Close the delivery and suction valves (4 and 8 in fig. A5);
• Discharge the residual pressure in a controlled manner;
• Loosen the pin of the filler cap (A1 or B1 in fig. A5);
• Remove the drain plug completely (A3 or B3 in fig. A5) and wait for emptying;
• Once emptying is complete, reposition and tighten the drain plug and the pin
of the filler cap again (tightening torques in fig. A5).
NOTE: liquid may remain in some internal parts of the pump. For complete
removal it is necessary to fully disassemble the pump.
If the drained liquid may be harmful to people, animals or the environment, it
must be collected and disposed of properly.
8 MAINTENANCE AND SUPPORT
Caution! In the event of an overload shutdown, appliances equipped with
automatic reset circuit breaker switches will automatically restart when
the temperature drops below the danger level.
Before any operation on the electric pump, make sure that the electrical
voltage has been interrupted and that it cannot be accidentally restored
during maintenance operations.
If the electric pump is used for hot liquids and/or liquids that are
dangerous for humans, animals or the environment, strictly notify the
personnel who will carry out the repair. If required, drain and rinse the pump,
clean the external surfaces and collect the liquid in order to guarantee operator
safety.
Have the electric pump repaired only by personnel authorised by the manufacturer
so as to keep your warranty valid and not to impair the safety of the appliance.
Use only original spare parts or parts approved by the manufacturer. For spare
parts and special maintenance manuals, contact the Manufacturer. To replace the
motor or mechanical seal, refer to the following paragraphs.
Always use the required PPE (refer to the relevant section).
Regularly check that no condensation is formed in the motor (if there are drainage
holes).
The components that are normally subject to wear are mechanical sealing devices
and thrust bearing unit bearings, if any. Wear is associated with work conditions
and loads. Regular checks on the state of wear and tear of these components will
improve the reliability and increase the service life of the product. Perform checks
on a monthly basis, more frequently if the working conditions so require, and
during the first 500 hours of work.
• After cutting off the power supply, remove one coupling cover guard, check
the shaft passage area for any liquid leaks, these being seal wear indicators.
• During normal operation, pay attention to abnormal noises and/or vibrations
from the bearings, if any.
Check guards for proper positioning and safety devices for proper operation on
a daily basis.
It is advisable to check the condition of cables (especially at the cable glands)
every month and clean the system filters and/or suction grille.
If the power cable is damaged, it must be replaced by qualified personnel.
For models with a motor with IEC 160 or higher interface (motors above 11 kW),
it is recommended to check the lubrication of the thrust bearing. Follow the
instructions for THRUST BEARING LUBRICATION.
8.1 Spare parts
Use original spare parts or parts approved by the manufacturer, in order to avoid
any risks to the service personnel's and users' health. Contact the supplier and/or
check the spare parts tables attached (fig. A23, A24, A25, A26) for information.
8.2 Removing the motor
8.2.1 Pumps without a thrust bearing unit up to 4 kW (fig. A14)
Remove the coupling cover guards.
ENGLISH
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