We should take the necessary maintenance for submersible pump to extend its service life.
1. Change lubricating oil: open oil-hole screw of sealed chamber and inner of the motor, release all lubricating oil and change new oil to ensure the normal operation of lubricating system.
2. Check quick-wear parts: impeller, jumping ring, shaft sleeve, bearing pedestal, etc are quick-wear parts. Firstly, dismount the pump to check if the quick-wear parts are in good condition and then change damaged spare parts.
3. Dry the motor. Dry methods are: external drying method, drying by internal heat and combined drying method.
4. Ensure the seal: seal requirement of agricultural submersible pump is very strict. If the oil is find turbid with high water content when change lubricating oil of sealed chamber, sealed case or sealed ring must be changed to ensure the good sealed performance.
5. Check bearing: check upper and lower bearings on the motor, and new bearing must be changed timely if it is damaged or clearance is too large.
6. Ensure the bearing lubrication: for water-filled submersible pump, check and change framework oil seal and lithium lubricating oil of upper and lower bearing chambers to ensure bearings operate under a good condition.
Manufacturers recommend: Shenlong stainless steel submersible pump
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