Locate the two screws on top of the vacuum brush housing. remove these two screws and remove the housing cover. Note that the belt is EXTREMELY difficult to remove, so BE PATIENT! First, make sure the vacuum clean is NOT plugged in! Remove the roller brush BEFORE attempting to remove the belt. Next, Remove the belt by wiggle the belt between the narrow gap near the metal pin that the belt is wrapped around. Replace new belt on pin first, then wrap belt around roller brush in belt groove and replace roller. re-attach roller carefully.
Replace and secure housing cover.
Paul E Young of Collingdale, March 2010