Question about Hoover Ultra U6430-900 WindTunnel Bagged Upright Vacuum

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Motor shaft getting really hot

So that it melts the flat belt and starts to smoke. Any solution?

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Re: Motor shaft getting really hot

Open up the area where the beater is with the belt off. Turn the beater by hand...if it turns hard, the bearings are jammed up with old grease or debris. You'll have to deal with that.

Posted on Dec 07, 2007

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I have a Kenmore Whisper Belt 116-50612007. Up until now it has worked tremendously well. Suddenly, it is smoking from the power nozzle when I vacuum. I checked to see that it wasn't clogged up and that...

It's most likely the belt. A loose or worn belt will slip on the motor shaft and cause the burning odor. Take a look at it first, check for obvious wear and/or melting.
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The little belt inside the head of the vaccum with the beater bar is not always spinning therefor is melting. Is it normal for the metal pin that it is going around on to get really hot?

The Belt should be changed at this point. This will allow for the proper tension to be on the brush between the motor assembly (metal pin) and the brush so that it spins at the proper speed.

Is it "normal" for the metal pin (motor shaft) to get hot.... not normal, however in the problem you have described, yes it is normal for this situation.

Change the belt and your problem should go away.

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I would say that it is definitely running backwards. I have a guide to replacing the power switch that outlines the reassembly of the Kirby and tells you which carbon brush wire plugs into which hole on the power switch. Each carbon brush has a letter (B or O) and the same two letters are on the switch to help you get the wires back on right. (the "B" attaches to the "B" and the "O" attaches to the "O") Here is the link to the guide and I hope it helps,...


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Vacuum motor shaft too hot

Check the brush roll ends, will they turn easily or is one frozen. If so, you need to replace the brush roll. If the motor turns on, it and the belt are trying to turn the brush roll and can't. Also check the ends where the brush roll sits in and make sure it hasn't overheated and melted., If it did you will have to replave the base.

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