How much do you know about the tips for the maintenance of submersible pumps

The machine has been used for a long time, or improper operation is prone to some failures, so in the face of possible failures of pump valve products, users should master some maintenance tips as much as possible to restart the strike machine.

Now, for your friendly introduction of liquid pump repair tips, you must look carefully.

1. When repairing the submerged pump, first remove the pump from the storage tank, remove the motor and machine base, remove the lower pump casing, knock off the lower shaft sleeve and impeller (pay attention to the anti-corrosion layer on the pump shaft), loosen the upper bearing seat 6 hexagonal bolts, and then pull out the positive pump shaft and bearing parts together for maintenance.

2. When reassembling the submerged pump after overhaul and replacement of wearing parts, see: Install the bearing seat and bearing together on the upper part of the pump shaft, seal the upper and lower bearing covers, install the coupling and tighten the round nut, correct the bending degree of the pump shaft, insert the pump with bearing seat downward into the pump body, then install the bearing seat on the middle seat, and adjust the clearance between the impeller and the upper and lower pump shells, put the impeller, the lower shaft sleeve and the impeller and the cap together with phenolic cement on the pump shaft. After the phenolic cement is completely solidified, the lower pump cover will be installed. After the assembly is completed, rotate the pump shaft on the coupling by hand to see if it is normal. For example, when replacing the bearing and pump shaft, first remove the round nut and coupling at the upper end of the pump shaft, loosen the 12 screws of the upper and lower bearing caps, and hit the bearing upward.