Maintenance - SAER Elettropompe L Serie Manual De Empleo Y Mantenimiento

CHECKS WHILE RUNNING
After a sufficient period of time to reach normal operating conditions, verify that:
There are no liquid leaks.
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There are no vibrations or anomalous noises.
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There are no oscillations of the flow rate.
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Ambient temperature does not exceed 40 °C
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The temperature of the bearings, measured on the housing, does not exceed 90 °C.
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The motor's current absorption does not exceed that shown on the plate.
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In the presence of even only one of these conditions, stop the pump and find the cause.
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WARNING!
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CHECKING OF THE SEAL
MECHANICAL SEAL
The mechanical seal does not require regulations and/or maintenance. It's possible a loss of liquid during the first instants of operation
due to the arrangement of the seal. If the loss should not stop, stop the group and research the cause.
STOP THE PUMP/ELECTRIC PUMP
i. If the non-return valve is not present, close the gate valve on the delivery pipe.
ii. If there is no foot valve present, close the gate valve on the suction pipe.
iii. Stop the electrical feeling
If the pump / electric pump remains inactive at low temperatures or, at any rate, for a period exceeding three months,
WARNING!
it is a good idea to empty the pump through the specific cap.
STORAGE
Pump installed, not in operation but ready to be started up: operate the pump for at least 10 minutes once a month.
Pump removed from the system and put into storage: clean the pump and protect its surfaces from corrosion by applying appropriate
products.
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WARNING!

7. MAINTENANCE

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For product handling, follow all the instructions in the previous sections.
Keep the manual for future reference - For more informations visit www.saerelettropompe.com
In the event that the surface of the pump is hotter than 50 °C, we recommend protecting it against accidental
contact, such as using grates, shielding o insulating coatings, in such a way that however does not affect
correct ventilation.
The same precautions should be taken when pumping cold liquids.
The pump maximum working pressure can't be bigger than the PN pump nominal pressure.
The pump restart after idle periods must be carried out in accordance with the requirements of the
previous paragraphs.
Before executing any operation, turn off the power and prevent it from being reconnected.
Do not make changes to the product without authorization.
In the event it is necessary to perform any type of maintenance, the following precautions must be observed:
o disconnect the pump motor from the electrical system;
o wait until the temperature of the liquid is such not to create a danger of burns;
o if the liquid handled by the pump is harmful for one's health, it is indispensable to observe the
following warnings:
 the liquid must be carefully collected and disposed of with respect for current law;
 the pump must be washed inside and out, disposing of the residues as said above.
The surfaces of pump and motor can reach high temperatures. Wait to cool before handling and use
appropriate personal protection.
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