I bought a Kirby Heritage 84 on sale and it has always worked but not very well. It was starting to smell like hot rubber and I did a little research and decided to try a new belt and roller brush. The part number was still visible on the old belt, but the Kirby website and the Revain listing suggested a different part number. Turns out my vacuum was trying to work with the floor polishing tape. With the new belt in place I used the vacuum and it cleaned the carpet better than ever and better than I thought it could be cleaned! Cheap, easy fix!
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