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The trouble and fix of deep well pump

Large current swing the ammeter pointer:

Trouble:
1.Large flow, low head that is over usage range, Motor overload
2.Graphite bearings, rubber bearings or bushings abrasion, thrust bearing, the impeller down
3.Thrust bearing, the impeller down
4.Pump shaft bending, bearing misalignment

Fix:

1.Reduce flow With the flow control valve to the rating
2.Change new bearing or bushings, check the sediment size is too big
3.Change thrust bearing and thrust disc
4.Fixe or change axis bending to new one

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