I didn't realize how much the belt on my vacuum was worn and how much it was affecting performance. My wife was willing to throw it away and buy a new one. I suggested I disassemble it and see if I could figure it out first. After changing the belts (and cleaning the brushes and replacing the HEPA filter) the machine was like new. Still needs to be emptied about every 10 minutes but the strap was easy to put on and things have changed.
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