Hoover U6445-900 bagged self propelled Mach 6.9 brush will not turn, replaced belts, not the problem....housing cover seems loose & when manifulated the belt brush will turn. Any ideas on what the problem could be? Thanks!

SOURCE: installing belt on hoover self propelled upright vacuum

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Installing belt on Hoover self propelled upright...
Posted by Fryeburger on Jun 02, 2008
Need help installing belt on Hoover self propelled upright vacuum

Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. Hoover Ultra U6430-900 Wind Tunnel Bagged Upright. The best way to install the belt on a Hoover to replace one or both of the belts @ the same time for the best cleaning. The average belt change is every 4 to 6 months for best results. There is a tool that looks like a screwdriver that has a right or left angle on the end that serves as a belt puller and to hook the belt(s) onto the brushroll 1st and then take your puller and then pull or stretch the belt onto the motor pulley. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
http://www.hoover.com Telephone
Contact our Customer Service Department at 1.330.499.9499
Monday through Friday
8 a.m. - 7 p.m. EST
http://www.a-1vacuum.com/ 1-800-657-1874 Customer Service
Thanks, Don the Vac Man
Go Ahead. Use Us.

SOURCE: Brush won't turn and self propel doesn't work

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Brush won't turn and self propel doesn't work (by 2 users)
Posted by brucelk on May 24, 2008
I have replaced both the v-belt and the larger belt with Hoover brand belts and the brushes still don't turn properly and the self-propel function doesn't work. It seems that when I lower the handle all the way down toward the floor it works fine, but no one can vacuum this way. Is there an adjustment to belts to tighten them up? Otherwise I have to get it in to the only repair shop in town which is an hour's drive.X
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1 Other User Has the Same Problem Comment by chartsell, posted on May 29, 2008 I have replaced both the belts as well. I have tightened the screws as someone else as suggested. The brush still will not turn unless you lower the handle almost to the ground. Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. Hoover U6437-900 / U6439-900 Windtunnel Vacuum. It is not so much the belts, the 2 belts are only part of the solution. The average belt change is every 4 to 6 months as a rule and to change them @ the same time. The Hoover Self-Propelled works on when the handle is lower to a comfortable position then the self-propelled drive may just need and adjustment. There is a self-propelled rod that controls the self-propelled feature and it either needs adjustment or replacement or the part that hold it may be broken but either one can be fixed. So feel free to contact your local vacuum cleaner dealer with questions. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
http://www.hoover.com Telephone
Contact our Customer Service Department at 1.330.499.9499
Monday through Friday
8 a.m. - 7 p.m. EST
Thanks, Don the Vac Man
Go Ahead. Use Us.

SOURCE: Hoover WindTunnel Self-Propelled V Belt

Hi, That is what was happening to my Windtunnel. Until I looked at the little round disk "plastic". there was a crack in it and this puts pressure onto that V belt to make the brush spin. I have a replacement idler arm assy unit which has to be replaced. I hope this helps Cindy G.

SOURCE: Self propell doesn't work.

may be a stripped sprocket/cog or snapped shaft. check and replace as needed.

SOURCE: why wont the

no don't do that,have a little patience.check where the self propelled assembly is and see if anything got in there,something might be loose and the teeth are meeting each other.thats a good vavuum.i have 2 but their not self propelled.try taking the belt off the self propelled machanisn and try it again.if it works then something is keeping the propelled machanism from working.dig a little deeper,what do you have to lose?