Operating Rules - DRENO CQMPATTA 1 M-T Notice D'installation Et Notice D'utilisation Succincte

Transport
Do not lift the pump by the electric cable, use only the handle provided for the purpose. In case you have to
move it from one place to another, for safety reasons we suggest to stop the power supply.
Below zero temperatures
While working or submerged in the liquid, the pump does not freeze. Removing the pump from the water and
exposing it to below zero temperatures, the impeller may be blocked by the freeze.In case the impeller is blo-
cked by the ice, you have to submerge the pump in the water and let the ice melt before starting. Avoid quick
ways to defrost (for example to warm it) to avoid damages to the pump.
Cleaning
If the pump worked with liquid containing solid bodies, when it stops working, let it run a few minutes in clean
water. Remove the impurities (mud, stones, etc..) to avoid them drying, bloking impeller and mechanical seal,
stopping the pump from working.
Storage
In the case of pump storage:
• Store the pump in places protected from humidity and warm temperature.
• Place it in vertical position, paying attention to its stability just to avoid rollings and falls.
During the storage we suggest to roll the impeller by hand (every two months) to avoid the mechanical seals
sticking. If the pump stays stopped in stock for more than 6 months, this rolling became compulsory. Before
using the pump again, check the rotor rolls freely, the electric insulation is regular and for the AM-T 40/2/110
C.218-219, AM-T 50/2/110 C.225-226, GM-T 32/2/110 C.149-150, Grix M-T 100-150-200, APX M-T 100-150-
200, the condition and quantity of oil in the chamber are satisfactory.
For your personal safety during a simple inspection
Before work on the pump, check the power supply is disconnected and the pump can not restart, not even
accidentally. For personal cleanliness, be sure the pump has been carefully cleaned with water or specified
products. If the pump is disassembled it is necessary to use working gloves.
Recommended advices
Periodical controls and maintenances are suggested to guarantee a safer future operating. If the pump is new
or if the mechanical seals have been replaced, an inspection is recommended after the first week of working.
The pump must be inspected after 2000 hours of working or at least once a year. Hard working conditions or
occasional use require necessary frequent controls. Ageneral check must be done on the following points:
• Check there are no infiltrations coming from the cable (in this case replace the cable gland, making sure that
screws and bush are perfectly closed).
• Replace the damaged or worn parts.
• Replace the cable in the case it is inflated or its insulation sheating is damaged.
• For the series AM-T 40/2/110 C.218-219, AM-T 50/2/110 C.225-226, GM-T 32/2/110 C.149-150, Grix M-T
100-150-200 and APX M-T 100-150-200, check the level and quantity of oil in the chamber (the charge of oil
is complete when its level, with the pump laid on one side is of 1 -1,5 cm under the hole for the oil cap).
Motor insulation control
Once a year at least or after 4000 hours of working, check the insulation of the motor.
The measurement must be executed at the cable extremities (switch off from the panel) using a megohmmeter.
The test tension is 1000V maximum in continuous tension.
The resistence of the winding towards the earth must be higher than 5 MΩ, otherwise it is neccessary to execute
two measurements, one for the cable and the other for the motor.
Take off the cable from the motor and execute the measurements of the winding towards the earth, connecting
all the extremities of the winding.
• If the value of insulation of the cable is lower than 5 MΩ, it means the cable is damaged.
• If the motor has low insulation values, this means the winding is brokedown.

7. Operating rules

8. Inspection and maintenance
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