If yours is like mine, then you first need to pry off the cover over the light on the top of the powermate unit. Under that cover are the philips screws you need to remove. Once they are removed, turn the unit over and use a flat screwdriver to loosen the clips on either side (they should be marked). When the bottom cover is unclipped on both sides you can pull it off, exposing the the brush and belt. The new belt I bought yesterday cost $5, and they seem to be common at vacuum stores (most likely because they break often!)
Alice, July 2008