If fan blade assembly is replaced because of mechanical damage, waterpump and viscous fan drive should also be inspecteThese components could have been damaged due to excessive vibration.
如果因为机械损坏而更换风扇叶片组合，应该检查水泵及粘性风扇驱动，这些组件可能由于过度抖动而损坏。
2
The special inverter and pump for photovoltaic waterpump is expensive and making using of general inverter to drive general waterpump can not tracks point of maximal power.