Mainly have the following ends: electric rotor unfair balance; coupling joint is not good; bearing wear buckling; rotating part of the loose parts, cracks; pipe support is not strong and so on. Do not take the debugging, repair, reinforcement, straightening, change and other methods of disposal. The above-mentioned things are the common cause of the failure of the pump, not all reasons, the practice of dealing with failure, due to actual analysis, should follow the principle of the first outside.
