What precautions should be taken during the commissioning of a shielded pump after maintenance?

Standards for shielding pump maintenance: 1. Check whether the electric pump has abnormal vibration. 2. Check whether the indication on the TRG gauge of the shielded pump is within the allowable range. 3. Check whether the liquid pipelines and the cooling system pipelines are unobstructed and meet the design requirements. 4. Regularly check whether the pressure, flow rate, and temperatures of various components are within normal ranges, and keep proper records. 5. Regularly check whether the bolts in the fastened areas are loose, as well as any vibrations that may occur as a result of such looseness. 6. Check all sealed areas for any signs of leakage. 7. Ensure that the equipment labels are clear, the surrounding area is clean, and the equipment surface is free of dust, grease, and debris. Precautions for maintaining shielded pumps: 1. Before maintenance, drain the medium inside the pump, and close the valves on the inlet and outlet pipelines, or shut down the pipelines and the cooling system. 2. Carry out pipeline cleaning work carefully and thoroughly; once the equipment pipelines have been tested and found to be in good condition, proceed with the procedures for equipment maintenance. 3. The power supply must be turned off, and a sign stating “Do Not Operate” or “Under Maintenance” must be placed before maintenance can be carried out. 4. Maintenance tools, as well as the parts that have been removed, cleaned, or replaced, should be placed neatly in designated areas in an orderly manner to ensure proper maintenance practices.