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How to make water pump work better?

How to prolong the pump life and reduce the loss of economic.
1, for submersible pumps
Before starting, some necessary inspection should be done: whether the rotation of the pump shaft is normal or not, whether the cable and cable plug are break or not.The voltage changes shall be observed uring operation , Control the changes within + 5% of the rated voltage.
In addition, the location of the water pump in the water is very important, and the water should be chosen as much as possible.
 the location should has no mud, water quality should be good, the pump should be suspended vertically in the water, not across, so as not to fall into the mud or be blocked  by trash , resulting in a sharp drop in water output, or even stop pumping water.
2, for self-priming pumps
Should be as much as possible in a better ventilation place, in order to facilitate rapid cooling, reduce motor temperature. Otherwise, long time operation is easy to burn the motor. For example, some farmers are using Self-priming pumps when they are not removed the plastic membrane causes the motor to overheat and burns out the motor. Besides, check the water storage capacity of the pump body before starting.
otherwise, will affect not only the self-priming performance, but also the shaft seal components,
the water should be pumped out within 3-5 minutes after the start of the pump , or we should immediately stop to inspect the pump.
3, pump maintenance
When the water pump had a problem , do remember not to mend it yourself, the best way is to let experienced, qualified maintenance workers to help you,the pumps should be fixed by built-for purpose tools. and timely replace the "overage" parts. Under normal circumstances, the pump should be examed and repaired every six months.
4, non use period maintenance
In the non use period, the pump should be promptly removed from the water source, and emptying the pump water, especially in the cold winter days.
After placing it in a dry place, you can also use grease to the bearing to protection,some key parts can use grease to antirust.
Add lubricating oil to prevent corrosion of parts. In addition, the period of non use of the pump is not as long as possible, if long
time does not use, not only easy to rust parts, but also reduce the service life of pumps.

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