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Propels good forward but not backward - Hoover Vacuums

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Try replacing the belt and lifting the height up a little

Posted on Sep 18, 2008

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Wont move forward or backwards


Generally the belt is probably stretched and needs replacing but I have had several that required modifying the height adjustment assembly. Belt should be a bit of a fight to stretch and get the brush block back in properly to maintain resistance. The higher carpet causes the belt to slip and can even cause burn/wear from the motor shaft spinning in one spot. Sometimes people run them and burn through and break the belt. Generally you smell rubber burning if belt is slipping and burning. The height adjustment modification was a last resort and not easy! Not for the average person! Another post tells how to modify but better be handy!

Dec 07, 2013 | Hoover Vacuums

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U6485-900 WindTunnel Self-Propelled I changed the belts but there is not enough tension on the brush drive belt to get it to rotate


I had the exact same problem with my Hoover U6485-900 Anniversary upright, self propelled, vacuum. It would move backwards and forwards, had good vacuum, but wouldn't pick up much because the brush/roller was not turning very well. I replaced the main drive belt (38528035) and it now works great. The old belt had stretched and was slipping under load. Thanks for the great suggestions.

Aug 02, 2013 | Hoover U6485900 Bagged Upright Vacuum

1 Answer

The vacuum is not rolling easily. It "drags" on the rug.


Hi There,

When a Hoover Windtunnel becomes hard to push, this usually indicates that self-propelled has stopped working.

When this stops working, it can be caused by several things. The first, most common problem is that the belts have either broken, or stretched to a point where they no longer engage the self-propelled mechanism. In order to verify this, simply make sure that the machine is set to the Carpet setting, turn the machine on, and turn it over on it's side with the handle release pedal reclined (make sure it's not in the upright position). Is the brush at the bottom of the vacuum spinning? If no, this definitely indicates that your belts have gone bad and need to be replaced. There are two belts on your machine, one controls the brush, the other controls the self-propelled mechanism. We've shot a helpful video that walks you through step by step on how to replace the belts.

This is by far the most common problem that we see on your particular model:


The other problem if the belts are installed properly that would cause the self-propelled wouldn't work would be the self-propelled actuator arm. There is a cable that starts at the handle of the vacuum, and runs all the way down to the floor head of the vacuum that controls the transmission. As you pull backwards on the handle of the vacuum, the cable pulls this actuator arm backwards, which then turns the wheels backwards, and when you push forward it turns the wheels forward.

The problem with the way it's designed however, is that if you pick up the vacuum cleaner by the handle of the machine rather then using the carrying handle on the back of the vacuum, it causes too much tension on the actuator arm, and will cause the cable to rip right out of the arm.

This is a VERY common problem on this model. To check and see if this part is broken on your vacuum, step on the handle release pedal so that the handle is in the vacuuming position, push the pedal a second time so the machine lays flat on the floor.

Now if you look right behind the height adjustment switch, and the rug / floor switch where the floor part meets the upright part, you should see a cable that connects into the actuator arm. Pull up and down on the handle and look for movement. Is the cable loose with only a nut attached to it, or is it resting in the actuator arm?

Here's a very helpful link that shows you exactly how to replace the actuator arm:
How to Replace the Actuator Arm on Hoover Self-Propelled Windtunnel

If this didn't help you, and the problem is still happening, please just use the add a comment form here on Fixya and let me know that you're still having problems. I'd be honored to go through and do some more advanced diagnosing with you.


I hope this we helpful to you. If you did find this helpful, please be so kind and leave feedback for me. This is why repair professionals like myself continue to come back and give free repair advice, to get the recognition of a job well done.

Thanks so much,

Chris Jones
GoVacuum.com

May 06, 2010 | Hoover Self-Propelled WindTunnel Bagless...

2 Answers

Hoover wind tunnel won't self propel


There are really two reasons why the self-propelled wouldn't work. It could either be the belts on the vacuum cleaner are stretched or broken. The belts on this model control both the self-propelled transmission, as well as the brush roller. Here's a video that shows you how to inspect the roller brush and belts to make sure that they are installed properly and working. Try this repair first, as this is the easier one to fix.


The other problem if the belts are installed properly that would cause the self-propelled wouldn't work would be the self-propelled actuator arm. There is a cable that starts at the handle of the vacuum, and runs all the way down to the floor head of the vacuum that controls the transmission. As you pull backwards on the handle of the vacuum, the cable pulls this actuator arm backwards, which then turns the wheels backwards, and when you push forward it turns the wheels forward.

The problem with the way it's designed however, is that if you pick up the vacuum cleaner by the handle of the machine rather then using the carrying handle on the back of the vacuum, it causes too much tension on the actuator arm, and will cause the cable to rip right out of the arm.

This is a VERY common problem on this model. To check and see if this part is broken on your vacuum, step on the handle release pedal so that the handle is in the vacuuming position, push the pedal a second time so the machine lays flat on the floor.

Now if you look right behind the height adjustment switch, and the rug / floor switch where the floor part meets the upright part, you should see a cable that connects into the actuator arm. Pull up and down on the handle and look for movement. Is the cable loose with only a nut attached to it, or is it resting in the actuator arm?

Here's a very helpful link that shows you exactly how to replace the actuator arm:
How to Replace the Actuator Arm on Hoover Self-Propelled Windtunnel

If this didn't help you, and the problem is still happening, please just use the add a comment form here on Fixya and let me know that you're still having problems. I'd be honored to go through and do some more advanced diagnosing with you.


I hope this we helpful to you. If you did find this helpful, please be so kind and leave feedback for me. This is why repair professionals like myself continue to come back and give free repair advice, to get the recognition of a job well done.

Thanks so much,

Chris Jones
GoVacuum.com

Apr 17, 2010 | Hoover U6437-900 / U6439-900 Windtunnel...

1 Answer

I have a dirt devil vacuum made by Royal. It is a


You need to change the belt. If it is self propelled it will have two belts. You can find the type of belt you need in the manual and then you can get the belts here:

Dirt Devil Replacement Belts

Nov 06, 2009 | Vacuums

1 Answer

I have a self propelled Royal Dirt Devil vacuum model number 087900 and it goes backward fine but forward has to be pushed so hard it's impossible. Is this a switch? Do you know about how much the part...


You might try a new belt and/or brush roll. The brush roll is what helps pull a vacuum forward, the power drive helps, but if the brush isn't turning like it should, then it will hinder forward motion. The belt may look ok, but they stretch to the point that under load they won't drive the brush roll.

Feb 28, 2008 | Vacuums

2 Answers

Self propel will go foward, but will not reverse. Seems like handle is all the way extended.


There is a cable that connects to the handle and goes down to the powerdrive transmission. It is visible at the actuator arm on the drive if you look at the bottom of the handle where it pivots on the main housing. It will be on the right hand side, front corner of the handle bottom. You should be able to see the cable connected to the arm of the drive and will move back and forth with the top handle. Sometimes, they break at this connection. The cable may be frayed and broken, or the acuator arm may be broken where the cable connects.
This could also be a simple worn belt problem. The roller is always rotating in a direction that pulls the machine forward and if the belt is worn, the roller will turn sluggishly but still enough to pull forward, but the belt also drives the transmission and a worn belt will not have the capacity to overcome the forces involved to propel the machine backwards. Always change the belt(s) yearly.(on average)

Dec 22, 2007 | Hoover U6630-900 WindTunnel Bagless...

1 Answer

Hoover self-propelled u6630-900 reverse not working


THe forward/reverse lever (made of plastic) possibly is broken. New part is about $10.00

Dec 12, 2007 | Hoover U6630-900 WindTunnel Bagless...

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