① This regulation applies to the installation of long-axis deep well pumps and submersible pumps for wells.
②The cleaning and inspection of the pump should meet the following requirements: all mating surfaces (threads, spigots, end faces, etc.) of the parts and components should be cleaned; the parts that have been assembled at the factory should not be disassembled; Should be flexible.

③The following inspections should be carried out before the pump is in place: the inner diameter of the well pipe and the straightness of the well pipe should meet the requirements of the equipment technical documents, the well part of the pump complete set should be able to go up and down freely in the well, and the submersible pump should not damage the submersible cable; The height of the sweeping surface extending out of the foundation should not be less than 25mm; a soft isolation layer should be placed between the well pipe and the foundation; the size of the space at the top of the middle of the foundation should meet the requirements for the connection between the lift pipe and the pump base; there should be no sludge in the well pipe and dirt and debris; the lift pipe should be straight, the thread and flange end surface should be free of bruises, and should be cleaned. The long-shaft deep well pump should be inspected according to the following requirements: the rotation of the working parts should be flexible, the axial movement of the impeller shaft should meet the requirements of the equipment technical documents; the end face of the drive shaft of the pump should be flat, and the end face and threads should be free of damage, and It should be cleaned. When the transmission shaft is supported at both ends, the radial runout in the middle should not be greater than 0.2ram; the bearing bracket and the rubber bearing should be intact, and the rubber bearing should not be contaminated with grease.