Home suction pump, plug in the buzz, do not turn, and then open the impeller cover, and their own hand to turn a few times, you can, and feel too wrinkled, how to lubricate ah!
Hello, I do mechanical and electrical maintenance, you described the case, as long as the impeller behind the machine seal replaced motor bearings, and then change it, the movement will become very small
If it is self-priming pump, then you can check the bearing part, if the bearing problems, you may have to get inside the shop maintenance! I hope I can help you!
This is the change of pump head, there is no installation is positive, the impeller to the side of the partial point, grinding pump side or impeller down hit very much, and some grinding bottom, motor rotation, effort, and noise. Solution: the correct adjustment of the pump and impeller position, to hand freely, do not touch, not grinding prevail.
