1. When the unit is transported to the site, the person with the base has already calibrated the pump and motor. When leveling the base, it is not necessary to remove the pump and motor, so the installation is very convenient;
2. Put the base on the foundation, and put a wedge-shaped iron near the anchor bolts, and pad the base by 20~40 mm high for filling with grout after leveling;
3. Check the levelness of the base with a spirit level, fill the base with cement slurry after leveling, and check the level again after the cement dries;
4. When the power of the unit is large, the pump, motor, and base may be packaged separately for the convenience of transportation. At this time, the user needs to install and calibrate the pump unit by itself. The method is as follows:
a) Clean the dirt on the supporting plane of the base, the feet of the water pump, and the feet of the motor, and place the water pump and the motor on the base;
b) Adjust the level of the pump shaft, and fix the pump on the base with bolts after leveling to prevent it from moving;
c) Lift the motor, make the pump coupling and the motor coupling match, and lower the motor to the corresponding position on the base;
d) Adjust the gap between the two couplings to about 5mm, and correct whether the axis of the motor shaft and the pump shaft coincide. The method is to put a flat ruler on the coupling, and the outer circle of the two couplings should be in line with the flat ruler. If they are not coincident, the relative position of the motor or pump should be adjusted, or the pad should be adjusted with a thin iron sheet;
e) In order to check the installation accuracy, the gap between the two coupling planes should be measured with a feeler gauge at several different positions on the circumference of the coupling. The difference between the maximum and minimum gaps on a circle of the coupling plane should not exceed 0.3mm, The difference between the upper and lower or left and right center lines at both ends shall not exceed 0.1mm.
5. When the unit does not have a base, it needs to be installed directly on the foundation. The method is similar to that of 4., but more attention should be paid to calibration.