Thread Content
To ensure the reliable operation of Yufu submersible pumps and extend their service life, it is necessary to carry out regular comprehensive maintenance on these pumps and their control systems. At least one thorough preventive inspection should be conducted each year. The tasks include checking for any abnormalities in vibration, sound, voltage, and current during startup; verifying that the starting device functions properly; ensuring that alarms are triggered in case of over-temperature or leakage; checking whether the multiple protection mechanisms built into the control system activate frequently; inspecting the main cables and control cables for signs of aging or cracking; examining the main contactors for sticking, oxidation, or burrs; confirming that the thermal relay settings are correct; checking for signs of aging in the insulation layer of the windings; ensuring that the insulation resistance against ground is sufficient; verifying that the resistance values of the three-phase windings are balanced; checking for any damage or scratches between the stator and rotor; ensuring that the level gauges in the control system are accurate; confirming that the upper and lower limit signals are correct and reliable; checking that the float switches function properly; verifying that the temperature sensing elements are not aging or malfunctioning; checking for any emulsification in the liquid; ensuring that the mechanical seals are in good condition; inspecting the bearings for wear; checking the impeller for wear or cavitation; verifying that the shaft is not rusted, deformed, or worn; ensuring that all screws inside and outside the motor are tight; checking for debris in the cooling jackets and circulation pipes; and ensuring that there is no sediment or blockage at the pump outlet and its surrounding area. Having read this, do you now have a better understanding of the daily maintenance and care of Eufu submersible pumps? Welcome to visit our company’s official website or call our hotline to learn more about our products.