2. Install the impeller back cover and confirm the rotation direction of the impeller back cover.
3. Measure whether the axial momentum and radial runout of rotor parts are normal and whether it is flexible to try it by hand. Measure the maximum value of the same point MINUS the minimum value, which is the runout of the measuring point.
4. Install the water pump impeller on the pump shaft along the water inlet direction, that is, along the impeller axis direction, facing the water inlet direction, and finally lock the nut. Submersible pump is an important equipment for pumping water from deep wells. When in use, the whole machine dives into the water to extract groundwater to the surface, which can be used for domestic water, mine emergency rescue, industrial cooling, farmland irrigation, seawater lifting, ship load adjustment, and can also be used for fountain landscape.