If fan blade assembly is replaced because of mechanical damage, water pump 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
Foot mounting brackets are available also, when the pump must be run slower than direct-drive speeds allow, with belt or gear-reduction assembly.