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The cause of the malfunction Remedy Motor does not turn, there is abnormal sound (the main no-load operation) Motor coil three-phase connection with the wiring board is wrong, three-phase phase is not reversed. Check the coil phase, re-wiring, exchange two phase. Motor power increases impeller and the water guide shell friction, the pump inhaled a lot of sediment, or motor ball bearings damage. Adjust the pump impeller axial clearance, repair washing deep well, replace the worn bearings. Pump flow is reduced by 1, the pump impeller regulation rises too high, well water level drop deeper, impeller wear serious. malfunction cause Method of exclusion Motor does not turn, there is abnormal sound (mainly no-load operation) Motor coil three-phase connection with the wiring board is wrong, three-phase phase is not reversed. Check the coil phase, re-wiring, exchange two phase. Motor power increases Friction between the impeller and the water guide shell, the pump inhales a lot of sediment, or damage to the ball bearing on the motor. Adjust the pump impeller axial clearance, repair washing deep well, replace the worn bearings. Pump flow is reduced 1, adjust the pump impeller too high, well water level drop deeper, serious impeller wear.
2, the water filter is obstructed by foreign bodies, Yang pipe interface leakage.
3, pump speed less than the rated requirements. 1, Reduce the gap between the impeller and the aqueduct, increase the pump and drive shaft, replace the new impeller.
2, check whether there is any fiber or other suspended material in the well and remove it in time to check if there is water leakage mark on the water pipe and whether the bearing bracket end surface is flat or not.
3, check and adjust the speed. Pump running but no water Excessive impeller wear and axial clearance is too large, the water level is too low inside the suction pipe exposed surface, the drive shaft fracture. Replace the new impeller, accurately adjust the axial clearance, increase the water pipe to identify the reasons for broken shaft, replace the new shaft. Vibration pump running violently 1, Rubber bearings are not added to the diversion, the pump axial clearance adjustment is too small, the water shell generated friction.
2, drive shaft bending, rubber bearings wear over. 1, more diversion, lubrication of rubber bearings, re-adjust the pump axial clearance.
2, the shaft repair straightening, rubber bearing wear, should be replaced. Packing box ????? / td> Excessive wear or hard packing density densification Replace with new packing.
2, the water filter is obstructed by foreign bodies, Yang pipe interface leakage.
3, pump speed less than the rated requirements. 1, Reduce the gap between the impeller and the aqueduct, increase the pump and drive shaft, replace the new impeller.
2, check whether there is any fiber or other suspended material in the well and remove it in time to check if there is water leakage mark on the water pipe and whether the bearing bracket end surface is flat or not.
3, check and adjust the speed. Pump running but not excessive water impeller wear and axial clearance is too large, the water level is too low inside the suction pipe surface exposed, the drive shaft fracture. Replace the new impeller, accurately adjust the axial clearance, increase the water pipe to identify the reasons for broken shaft, replace the new shaft. Vibration pump running violent 1, the rubber bearing did not join the diversion, the pump axial clearance adjustment is too small, the water shell generated friction.
2, drive shaft bending, rubber bearings wear over. 1, more diversion, lubrication of rubber bearings, re-adjust the pump axial clearance.
2, the shaft repair straightening, rubber bearing wear, should be replaced. Packing box ????? / td> filler wear over or poor quality of the density of poor replacement of new packing.