how can i get my oreck xl to suck again?

I have an Oreck XL that I got at a garage sales some time ago.
Plugged it in and the motor and beater brush run.. but, it does not suck?

Any suggestions?
JEROD GAWRORSKI, February 2009
YOU may have a clog or a bad fan

Art Heydecker, June 2009
link Click here to see other fixes for Oreck XL.