How do I replace a hoover windtunnel belt – Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum

ANSWER : The belt heats up due to the friction, as well as being in contact with the shaft of a hot motor. It is normal.

ANSWER : I had this same problem with the V belt on my Hoover Vaccuum..
.There are three (3) basic things that will cause the brush roll not to spin..
.1. When handle is upright, brush roll is OFF..2. When switch is set for HARD surface, brush roll is OFF..3. Broken/worn FLAT belt or V Belt, brush roll will not spin.
.
.I noticed that the brush roll was not spinning when my vacuum was set for CARPET. After removing the cover I noticed that the V belt was loose, I thought the belt was worn so I purchased a correct replacement belt and installed it, but the new belt was also loose and when I turned the large flat belt pulley it did not turn the V belt pulley at the same time..
.I double checked the surface setting and I had the vacuum switch set for carpet, but still when I released the handle out of the upright position the brush roll would still not spin..
.My aggravation finally led me to this posting on FixYa’s website..
.The first thing I did was checked the screw to the left of the V belt as suggested by ejmjr5 and this did nothing to solve the problem or create more tension on the V belt, even when the upright handle was not in the upright position..
.After playing around with the surface setting control switch/nob I notice that when I moved the switch out of the HARD surface setting and over to CARPET, I had thought that the switch was set for CARPET as it visually appeared, but I was not pushing the switch over hard enough to click it into the CARPET setting mode..
.VOILA, the brush roll now spins correctly even though the V belt seams to be too loose for the pulley..
.You really have to force the switch into the CARPET setting. Be sure that you hear the switch/nob click into place..
.Now you can effectively clean up after that hangover of a party!.
.Burp!

ANSWER : The problem was a sticking switch that was not being reset. The vacuum on/off switch mechanism is comprised of two switches. One is the main switch that turns the vacuum on and off. The second is a shut off switch that gets tripped when the full bag sensor is engaged. This second switch is supposed to get reset when you push the on/off switch on the outside of the machine. The full bag shutoff switch was stiff and it, therefore, was taking a couple of presses of the on/off switch to move the shutoff switch back into the running position.

ANSWER : Sounds like you need to buy a new motor. All that grit and dust will ruin a motor and I’m surprised it lasted as long as it did.
.This is where a vacuum that won’t run without a bag would have been nice. (Aerus for one)

ANSWER : The Hoover WindTunnel self propelled is a machine that we see in our retail stores (Vacuums Unlimited) constantly. The benefit of having a supposed “self-propelled” machine wears of quickly after the numerous time you will need to take this machine in for repair.

It’s unfortunate you’ve had to spend so much money already on repairing this machine. I know you’ve said you’ve already replace the belts and filters, but if you want you can check out a video we made on repairing the Hoover Windtunnel.

http://www.youtube.com/watch?v=meX8lgZo7DY

If you are looking for a reliable upright, at GoVacuum we’d recommend the Sebo X4 upright (http://www.govacuum.com/seauxseupvac.html). The machine is incredibly reliable and easy to maintain. Thus far, we haven’t had one warranty repairs come through our doors. The machine itself has a lifelong warranty on the belt because the machine automatically shuts off the motor if an obstruction is detected, preventing any undue stress on the motor or belt.

ANSWER : I’ve successfully used a compatible belt – Royal 104425001 .It’s still new, but for the time being at least – it works.

ANSWER : The aforementioned solutions probably never even attempted this fix on this model. The handle does NOT need to come off. but the 5 screws on the front housing DO: 2 above the light and 3 below it. Then to get the colored housing off you need to access 2 screws on the underside that are beneath the agitator roller. To do that, obviously the 4 screws holding the bottom plate need to come off too. Here’s a link to a schematic that might help as you attempt to do this, (assuming that you still do!) http://www.elkypro.com/hoops2005/vacuum_parts/hoover/U5461-900.html

Once you have the main body housing cover off, then you can access the 2 screws atop of each trunnion cover that holds the motor assembly cover halves together. If you’ve made it this far, then gently pry apart the motor halves keeping even as yo do. Now you can see all the wiring necessary to cut and splice. Happy cord replacing! As for me, I am headed for the store, as I am not so sure I can remember how to get the darn thing put back together. But it was fun taking it apart!

ANSWER : Here is a link to the manual and to the belts you need.

..\011\011\011\011\011\011U6439-900 Manual
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U6439-900 Belts