深井泵开动前应加水预润,其目的是减少摩擦阻力和振动,以利起动。在预润良好的条件下,从起动到出水不过二分钟左右。如不加预润水,橡胶轴承和传动轴间就会发生干李擦,轴承就会发热变质,造成起动困难和振动,严重时会出现抱轴现象,使连接部 Deep well pump should be added before the start of pre-run water, its purpose is to reduce friction and vibration, to facilitate the start. In the pre-run good conditions, from start to the water but about two minutes. Without the pre-wetting, dry rubbing occurs between the rubber bearing and the transmission shaft, the bearing will be heated and deteriorated, causing difficulty in starting and vibration. In severe cases, the shaft will appear to hold and the connecting part