春天到来 ,已开始春灌。对水泵应进行如下检修 ,以利发挥机泵效能及潜力。１ 如水泵和管路内有剩水 ,应全部放空。２ 如水泵和管路拆卸方便可拆下 ,用钢丝刷把铁锈刷干净 ,如油漆剥落 ,可将管子在太阳下晒热后再涂上热柏油（指铁管）。３ 如有轴承滚珠磨损或表面有斑点与松动等 Spring has begun, spring irrigation. The following should be carried out on the pump overhaul to facilitate the development of pump efficiency and potential. 1 If there is water left in the pump and piping, it should be emptied completely. 2, such as pumps and pipelines can be easily disassembled demolition, rust brush with a wire brush clean, such as paint spalling, the tube can be in the sun and then coated with hot asphalt (pipe). 3 If the bearing ball wear or surface spots and loose and so on