My flymo 330 electric motor runs but the blade does not go around to cut th?

Open the grass box lid,remove the grass box,remove 3 screws holding front top cover on (the lump in front of the grass box),turn upside down ,remove blade,remove 5 screws holding motor in place.
now you can change the belt.
reassemble in reverse order.
a lot of the time the screw holes are hidden by dried grass , so give it a scrape and dig around if yo can't see them.
Good luck

Mike VW
July 2007