Yes, airflow upward. But, is WD a lubricant, or a water
displacer? What happens if you put the fan in upside down?

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Tony Hwang" wrote in message
...

The air flow sgould be upward. I think if you really want to
remove the
blade just soak the seized part on the shaft with generous
WD40 , let it
work it's way a few hours, repeat in needed then bearing
puller....