Inadequate flow, causes and treatment methods are as follows: The system static head increases. Approach is to check the liquid level and the system pressure. Increase the resistance losses. Approach is to check the piping and check valve and other obstacles. Casing and impeller wear ring wear too much. Approach is to replace or repair the wear ring and impeller. Other parts of the leakage. Approach is to check the seal and other parts. Pump impeller clogging, wear, corrosion. Treatment is cleaning, inspection, exchange. Shanghai water pump bearing fever, causes and treatment methods are as follows: (1) the bearing pads scraping undesirable. Approach is to re-repair or replacement of the bearing pads. (2) bearing clearance is too small. Approach is to re-adjust the bearing clearance or scraping. (3) insufficient amount of lubricating oil pump Wuhan Qing Hua, poor oil quality. Approach is to increase the amount of oil or oil change. (4) adverse bearing assembly. Approach is required to check the bearing assembly, the elimination of undesirable factors. (5) cooling water circuit. Approach is to check, repair. (6) bearing wear or looseness. Approach is bearing repair or scrapped. Wakamatsu Association Yancheng pump, re-tighten the bolts concerned. (7) the shaft is bent. Approach is to correct the pump shaft. (8) slinger deformation slinger can not rotate, with or without oil. Approach is to update the slinger. (9) the coupling of the axial gap is too small or bad. Approach is to check the situation and adjust the axial alignment clearance. Wuhan Qing Hua pumps, water pumps Xin Cheng (certified), water pump provided by the Hebei Xin-pump factory. Hebei Xin-pump factory (www.shuibeng999.com) (www.shuibeng999.com) Hebei Baoding, centrifugal pumps leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Xin-pump in leadership with the staff warmly welcome all inquiries negotiations to create Xin Cheng pump a better future. You can also access (www.shuibeng999.com/supply_details_38204875.html), for more information about the company.