ã€Reason】 1, pump reverse. 2, the pump speed is too low. 3, pump impeller loose or equipped with anti. 4, pump impeller blades wound a lot of debris. 5, the pump shaft tripping or fracture. 6, Yang pipe serious water leaks. 7, pump impeller submerged depth is not enough. 8, the pump installation head exceeds the total head of the pump, or move the water level dropped beyond the allowable range. 9, winter use, the pipe in the frozen water. [Maintenance] 1, for the type of power used by the pump, respectively, to adjust the direction of rotation of the pump. 2, according to pump different forms of power machines, respectively, to increase the speed. 3, check the working state of the impeller after disassembly. If the impeller loosening occurs, the impeller should be reset and fastened; if the impeller is installed in the opposite direction, it should be re-installed in accordance with the impeller assembly process requirements, and pay attention to tightening to prevent loosening. 4, the first stop, take the first method of flushing back to clean winding debris. If you can not rule out trouble or winding debris removal is not complete, then the axial flow pump should be disassembled and overhauled to clean the entangled debris on the impeller blades. 5, after dismantling repair. If the pump shaft is tripped, the pump shaft should be reinstalled in accordance with the assembly process requirements of the axial flow pump; if the pump shaft is broken, repair or replacement of the pump shaft should be carried out. 6, identify the axial leakage pump concrete pump leaks, respectively, depending on the circumstances were repaired or replaced. 7, appropriate to reduce the installation of the pump height, and re-install the pump. 8, appropriate to increase the pump speed, increase the impeller series, or replace the larger power matching power machine. 9, first clear the pump pipe in the icing, and then boot.
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