The main pump is a water pump, water pump in operation, it is inevitable that failure and damage, resulting in normal pumping. Therefore, when the pump is found to be bad pumping must be promptly repaired and adjusted. First, the pump does not absorb water or not drainage The reason for the end of the valve stuck, partial blockage of water filtration, water absorption is too high or water leakage. May also be due to incorrect steering, impeller runner blockage and so on. After one by one inspection, respectively, to take the end of repair valve, remove the blockage, correct steering, cleaning impeller and other measures to deal with. Second, the pipeline leaks or leaks may be installed screw nut is not tight. If the leakage is not serious, in the place of leakage or leakage coated with cement or asphalt mixing oil slurry. Temporary repair can be painted wet mud or soft soap. If the joint leakage, wrench can be used to tighten the nut, serious water leakage must be re-disassembly. Third, the overheating of packing due to too much packing pressure is too tight, cooling water into less than filler, or shaft surface damage. Can take appropriate relaxation packing, sealing tube blockage. Filler wear must be replaced by new ones. Soak it in the oil before installation, insert it in turn, and cut it off, which will reduce water leakage. After the last lap packing is installed, the gland should be installed tightly and the tightness should be adjusted during operation. Fourth, the pump vibration may be uneven electric rotors, or bad coupling, bearing wear and tear; may also rotate some of the parts loose, broken; also because of tube stent is not strong and so on. Can be taken to adjust, repair, reinforcement, straightening, replacement and other methods. Fifth, the impeller disassembly and repair Impeller blade was broken, or affected by cavitation, showing a lot of pitting, should be replaced or plated carbide. Wear is not, can also be poured. First remove the impeller and the pump shaft is fixed, loosen the nut or the head of the rotating device screws, and then rotate the thimble screw, and gradually pulled out the drive. Then remove the shaft pump shell, remove the impeller to repair shop repair. Sixth, the repair of pump shaft defects Multi-axis bending due to impact load, too tight belt pulled or installed incorrectly caused. If the bend is not powerful, manual screw correction can be used, but not too hard. If the pump shaft crack or break, you can take welding repair, welding or calcined, and then by tempering, turning grinding can be.
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