The main machine of the pump is the pump. When the pump is in operation, it will inevitably lead to malfunction and damage, resulting in normal pumping. Therefore, it must be repaired and adjusted in time when it is found that the pump pumping is poor. The reason why the pump does not absorb water or not drain is that the bottom valve is stuck, the filter water is partially blocked, the water absorption height is too high or the water absorption leaks. It may also be due to incorrect steering, blocked impeller passages, etc. After checking one by one, measures such as repairing the bottom valve, removing the plug, correcting the steering, and cleaning the impeller may be taken separately. Leaks or leaks in the piping may not be tightly tightened during installation. If the leakage is not serious, you can apply cement or cement slurry mixed with asphalt oil in places where there is leakage or water leakage. Temporary repairs may be coated with wet mud or soft soap. If water leaks at the joint, tighten the nut with a wrench. The leak must be reinstalled. The overheating of the packing is caused by too much pressure in the packing, the cooling water cannot enter the packing, or the shaft surface is damaged. Can take appropriate loose packing, clean up the blockage. Filler wear must be replaced with new ones. Soaked in the oil before installation, loaded by the circle, the incision should be staggered, so as to reduce leakage. After the last ring of packing is installed, the cover must be tightly fitted and the tightness adjusted after operation. Severe vibration of the water pump may cause unbalance of the electric rotor, poor coupling of the coupling, wear of the bearing, bending of the bearing, loosening and rupture of some parts of the rotating parts, and lack of firmness of the tube support. Can be adjusted, repaired, reinforced, straightened, replaced, etc. Demolition and repair of the impeller Impeller blades are damaged, or affected by cavitation, showing many pits, should be replaced or plated carbide. When it is not worn, it can also be poured. When disassembling, first fix the impeller and the pump shaft, loosen the nut or turn the device's head screw, and then rotate the ejector pin screw to gradually pull out the transmission. Then remove the shaft from the pump housing and remove the impeller for repair. Repair of pump shaft defects The shaft of the pump is often bent due to shock loads, over-tightening of the belt, or improper installation. If the bend is not too severe, you can use a manual screw regulator to correct, but the force should not be too fierce. If the pump shaft cracks or breaks, it can be welded, welded or forged, and then tempered and turned.
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