What to do about vibration during pump operation and motor overload

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When vibration occurs during the operation of the water pump, handle it according to the following methods: 【Cause of the fault】 （1）The foundation bolts are loose or not properly installed； 　　(2) The water pump and motor are not installed concentrically ； 　　(3) Enter air or experience cavitation ； 　　(4) Damage or wear of the water pump bearings ； 　　(5) Air remaining in the outlet pipe ； 　　【Exclusion Measures】 (1) Tighten bolts and improve foundation installation ； 　　(2) Correct concentricity ； 　　(3) Identify the cause of air ingress and take appropriate measures to eliminate it; in the event of cavitation, reduce the water suction height to minimize head loss in the suction pipe ； 　　(4) Replace or repair the bearing ； 　　(5) Install exhaust facilities at the areas where air remains ； 　　When the motor is overloaded during pump operation, handle it as follows: 　　【Cause of the fault】 　　(1) Excessively high speed ； 　　(2) Excessive water pump flow rate ； 　　(3) Foreign objects entering the pump ； 　　(4) Excessive mechanical losses in the motor or water pump ； 　　【Exclusion Measures】 (1) Check whether the motor is properly matched ； 　　(2) Close the outlet gate slightly ； 　　(3) Disassemble the pump to remove foreign objects ； 　　(4) Check the gap between the water pump impeller and the pump casing, as well as whether the water pump stuffing box, pump shaft, and bearings are in good condition ；