The reasons and methods of plastic self-priming pump with loud noise and no water
First, the use of plastic self-priming pump noise
1, the motor reverse transfer noise
Maintenance method: Check to see if the motor is reversed open the motor box to see the motor wiring sequence, if there is dislocation, the motor wiring is adjusted to positive rotation.
2, rotating shaft seal contact surface left and right friction swing caused by loud noise
Maintenance method: Check whether the axis deviates from the middle, disassemble and re-correct the axis.
3. The friction and vibration of the middle cover are loud
Maintenance method: Open the main body to check whether the impeller is twisted when the friction, to see whether the impeller is damaged; Clean up the foreign matter in the impeller.
4, bearing damage, harsh sound
Maintenance method: Replace the motor bearing.
5, into the air, the sound of water is very big
Maintenance method: Check the inlet and outlet pipes and joints of the plastic self-priming pump, the sealing position of the pump inlet is wrong, and repair it in time.
Second, the plastic self-priming pump does not water
1. The impeller is damaged and blocked
Maintenance method: Replace the impeller or clean and clean the impeller.
2, the pump body itself has no water, that is, it is not filled with water
Repair method: Check before use, fill the pump body with water.
3. Air leakage and blockage at the water inlet
Maintenance method: Check the seal ring, impeller, re-seal.
4. Motor reversal
Maintenance method: Adjust the motor, wiring sequence, adjust to positive rotation.
