Question about Hoover U6437-900 / U6439-900 Windtunnel Bagged Upright Vacuum

1 Answer

Removing the cover from U6445-900

How do you remove the top cover from this model? Have to replace the actuator arm and cable (both broken) and don't want to damage anything else. I can see 1 tab on suction tube side and a couple of screws, but so far don't want to force anything including the slider knobs for the height adjustment and brush on/off. Thanks

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  • ZZeasy May 10, 2008

    Wow! Thanks for the quick response reddevil6- that was only about 10 minutes at most from when I posted my question! I'm waiting on the parts and still use the sweeper w/o the self propell. One more thing- how about the 2 slider knobs? do they just pull off? Thanks again for the info and quick response!

  • ZZeasy May 11, 2008

    Thank you, reddevil6!

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  • 1,673 Answers

Take off the bottom plate, then there 2 screws on each side(from the bottom)Take the cover for the hose, There is a catch on each side from the bottom edge, use a flat blade and push in, the top will release. The actuator arm just has that e-clip holding it on.

To replace the cable, take off the top handle piece, pull out the old cable. The new one will slip in real easy, then slip the medal piece in the slot before pushing the cable all of the way in. Then attach it to the new actuator arm. This is where you would adjust the cable for forward and backward for the transmission.

Posted on May 10, 2008

  • Lauren Junge
    Lauren Junge May 10, 2008

    They will stay on the cover, you don't have to remove them.

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1 Answer

Self propel not working


Make sure the replacement belt was the right one/size.
Make sure the self propelled is on at the handle. If you replaced the flat belt and it still pushes hard the most common problem is a broken power drive cable or actuator arm. Put the handle down and move the power drive handle forward and backward. If it moves freely watch by the headlight for the cable to move the actuator at the base. If the cable is in tact it should move the actuator. If it is broken the actuator will not move. If the actuator is broken the piece of plastic holding the cable will let the cable slide or it may be broken off completely. Replace whichever is broken.
If the cable system is ok and the belt is correct you may have a bad powerdrive assembly. I will include links to correct replacement parts.

Actuator
http://www.vacuummedic.com/product.php?id=363

Cable
http://www.vacuummedic.com/product.php?id=362

Belt
http://www.vacuummedic.com/product.php?id=6


Good Luck!

Aug 23, 2012 | Hoover U6446-900 WindTunnel Bagged Upright...

2 Answers

Upright self propelled Windtunnel model: The self propulsion does not work and I can see why. I need to know how to get the top cover off the machine to get to the broken part that engages and disengages...


First remove the bottom plate, brushroll, and belts. Three screws hold the top cover in place. One screw is in the center just behind the brush. The others are midway up on the sides - you may need a flashlight to see them. Once the screws are out, there are two latches on either side that secure the top cover, and these must be pushed outward with a flat screwdriver. Push one out to loosen the cover, and insert a screwdiver between the cover and the lower body to secure it while you push out the other side. You may want to remove the lower hose as well to make more room while replacing the drive actuating arm.

Jan 22, 2011 | Hoover Vacuums

1 Answer

I have a Hoover Model #U6430-900, Self-propelled Ultra Wind Tunnel Upright- I am sure the actuator arm- for the self propelled function- has broken. My question is how do I remove the plastic cover on top...


Hi There,

Here's a step by step guide that will explain in detail how to remove the top cover on your Hoover. The repair was written for a different problem then one you're experiencing, but you can follow along step by step to see how you can remove the top cover.

If you haven't already purchased the actuator arm, here's a link for you to the part on Amazon
Hoover Windtunnel Self-Propelled Windtunnel Actuator Arm

Here's the repair guide:
Step 1. Make sure that the vacuum is unplugged. Turn the machine upside down so that the brushes are facing upwards. I find the easiest way to do this is to put the brushes on top of a counter top or work bench with the handle of the vacuum resting on the floor. Remove the four screws that hold the bottom plate in place. Remove the bottom plate, both belts and then the roller brush from the machine:


391f9a0.jpg
Step 2. There are 3 screws that hold the top brush cover in place that need to be removed. On the right side the screw is down below the transmission to the right. There's also a screw in the agitator tray, in the middle that needs to be removed. NOTE: This small screw in the agitator tray is only present on some models, you's may or may not have this little screw, but all models will have all other screws circled. I have circled both screws that need to be removed:


a2c6df2.jpg
The screws on the left side that need to be removed are also circled. One screw holds the upper brush cover on, and the other two screws secure the hose in place. Remove all three screws as well as the transparent hose cover:


e00d104.jpg
Step 3. After all of these screws have been removed, there are two clips that are the last things holding the top brush cover onto the vacuum. Use a flat head screwdriver to push these clips off on both the left and right sides. The right side clip is near the pulley that the flat belt2_bing.gif rides on, and the left side clip is next to the internal hose.


b39ff0c.jpg
Step 4. Once both of these clips have been pushed so the unhook from the lower agitator housing, remove the top cover.

Once you have removed the top cover, here's a link to a guide that will show you how to replace the actuator arm itself:
http://vacfactsblog.com/2009/12/how-to-change-actuator-on-hoover-self-propel-vacuum-cleaner-step-by-step/

I hope that this information helped you fix your vacuum cleaner. If you have any follow up questions, or need clarification on something, please feel free to use the comment box here on the Fixya repair page, and I'll be happy to answer any of your questions.

If this was helpful, please be so kind and rate the repair, or leave feedback. This is greatly appreciated by the Fixya community if an answer was helpful.

Thanks again,

Chris Jones
GoVacuum.com

Jun 14, 2010 | Hoover Ultra U6430-900 WindTunnel Bagged...

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...

1 Answer

Where does the piece go to rise and lower the brush


HI There,

The part that raises and lowers the height adjustment goes underneath of the hood on the vacuum cleaner, and is held on by the carpet height adjustment know on the top of the hood.

I've done a repair below that explains how to get the hood off of the roller brush housing, and replace the knob next to it which is the rug/floor selector knob which is the one right next to the height adjustment part. The repair on your machine will be the exact same process however. Hope this helped you:

Hello,

If you've already changed the belts and the machine still won't run, it can really be only a few things.

The first thing you should check to make sure that the roller brush is good. You may do this by removing the bottom plate, and then taking the roller brush out of the vacuum2_bing.gif. Hold the bar using just your fingertips on the very ends of the brush on the bearing caps. With just holding the bearing caps with your fingers, use your thumbs to try and spin the bar. Does it spin freely without any resistance? If no, then you'll need to replace the roller brush. Here's a direct link to the exact roller brush for your Hoover Windtunnel Self-Propelled:
Hoover Windtunnel Agitator Brush Part # 48414069

If the roller brush spins freely several times on each spin, then your machine may possibly have a bad Rug / Floor actuator arm. This part controls the internal pulley that stops the roller brush when you turn it from carpet to floor mode.

I'm guessing that this is probably a more likely cause of your brushes not spinning. Here's how you can check this part:

Step 1. Make sure that the vacuum is unplugged. Turn the machine upside down so that the brushes are facing upwards. I find the easiest way to do this is to put the brushes on top of a counter top or work bench with the handle of the vacuum resting on the floor. Remove the four screws that hold the bottom plate in place. Remove the bottom plate, both belts and then the roller brush from the machine:


391f9a0.jpg
Step 2. There are 3 screws that hold the top brush cover in place that need to be removed. On the right side the screw is down below the transmission to the right. There's also a screw in the agitator tray, in the middle that needs to be removed. NOTE: This small screw in the agitator tray is only present on some models, you's may or may not have this little screw, but all models will have all other screws circled. I have circled both screws that need to be removed:


a2c6df2.jpg
The screws on the left side that need to be removed are also circled. One screw holds the upper brush cover on, and the other two screws secure the hose in place. Remove all three screws as well as the transparent hose cover:


e00d104.jpg
Step 3. After all of these screws have been removed, there are two clips that are the last things holding the top brush cover onto the vacuum. Use a flat head screwdriver to push these clips off on both the left and right sides. The right side clip is near the pulley that the flat belt2_bing.gif rides on, and the left side clip is next to the internal hose.


b39ff0c.jpg
Step 4. Once both of these clips have been pushed so the unhook from the lower agitator housing, remove the top cover. On the top you'll see two selector knows, one for the height adjustment, the other that controls the rug / floor setting. Turn the cover over and look at the opposite side of the knob that controls the rug / floor selector. There should be an arm that extends out that looks like this:



305a968.jpg
Sometimes this arm will break off, which will prevent the actuator arm from activating the rug carpet setting. The machine basically will always be set to bare surface floor mode. Is this arm broken off on yours? If yes, then here's how you can remove it from the machine.

Take your flathead screw driver, and place it underneath of the of selector knob on the top of the cover. Simply lightly pry upwards to separate the knob from the arm underneath:


a638606.jpg
Replace the actuator arm with a new one and see if this fixed your problem. If this was not the problem, there's really only one other possible thing it could be, but I rarely see this go bad. Please let me know if this fixed your problem, or if it is something else wrong. I'll be happy to then walk you through the last remaining possible problem.

I really hope that this repair was helpful to you. If you did find it to be helpful, help other Fixya users with the same problem find this repair by rating it helpful. You can do this by clicking on the thumbs up icons in the top of the repair.

Thank you very much,

Chris J.

May 02, 2010 | Hoover U6437-900 / U6439-900 Windtunnel...

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...

2 Answers

I have a Hoover Wind Tunnel U6437-900. The brush will not turn. I have replaced both of the belts with no success. Any suggestions?


Hello,

If you've already changed the belts and the machine still won't run, it can really be only a few things.

The first thing you should check to make sure that the roller brush is good. You may do this by removing the bottom plate, and then taking the roller brush out of the vacuum. Hold the bar using just your fingertips on the very ends of the brush on the bearing caps. With just holding the bearing caps with your fingers, use your thumbs to try and spin the bar. Does it spin freely without any resistance? If no, then you'll need to replace the roller brush. Here's a direct link to the exact roller brush for your Hoover Windtunnel Self-Propelled:
Hoover Windtunnel Agitator Brush Part # 48414069

If the roller brush spins freely several times on each spin, then your machine may possibly have a bad Rug / Floor actuator arm. This part controls the internal pulley that stops the roller brush when you turn it from carpet to floor mode.

I'm guessing that this is probably a more likely cause of your brushes not spinning. Here's how you can check this part:

Step 1. Make sure that the vacuum is unplugged. Turn the machine upside down so that the brushes are facing upwards. I find the easiest way to do this is to put the brushes on top of a counter top or work bench with the handle of the vacuum resting on the floor. Remove the four screws that hold the bottom plate in place. Remove the bottom plate, both belts and then the roller brush from the machine:


391f9a0.jpg
Step 2. There are 3 screws that hold the top brush cover in place that need to be removed. On the right side the screw is down below the transmission to the right. There's also a screw in the agitator tray, in the middle that needs to be removed. NOTE: This small screw in the agitator tray is only present on some models, you's may or may not have this little screw, but all models will have all other screws circled. I have circled both screws that need to be removed:


a2c6df2.jpg
The screws on the left side that need to be removed are also circled. One screw holds the upper brush cover on, and the other two screws secure the hose in place. Remove all three screws as well as the transparent hose cover:


e00d104.jpg
Step 3. After all of these screws have been removed, there are two clips that are the last things holding the top brush cover onto the vacuum. Use a flat head screwdriver to push these clips off on both the left and right sides. The right side clip is near the pulley that the flat belt rides on, and the left side clip is next to the internal hose.


b39ff0c.jpg
Step 4. Once both of these clips have been pushed so the unhook from the lower agitator housing, remove the top cover. On the top you'll see two selector knows, one for the height adjustment, the other that controls the rug / floor setting. Turn the cover over and look at the opposite side of the knob that controls the rug / floor selector. There should be an arm that extends out that looks like this:



305a968.jpg
Sometimes this arm will break off, which will prevent the actuator arm from activating the rug carpet setting. The machine basically will always be set to bare surface floor mode. Is this arm broken off on yours? If yes, then here's how you can remove it from the machine.

Take your flathead screw driver, and place it underneath of the of selector knob on the top of the cover. Simply lightly pry upwards to separate the knob from the arm underneath:


a638606.jpg
Replace the actuator arm with a new one and see if this fixed your problem. If this was not the problem, there's really only one other possible thing it could be, but I rarely see this go bad. Please let me know if this fixed your problem, or if it is something else wrong. I'll be happy to then walk you through the last remaining possible problem.

I really hope that this repair was helpful to you. If you did find it to be helpful, help other Fixya users with the same problem find this repair by rating it helpful. You can do this by clicking on the thumbs up icons in the top of the repair.

Thank you very much,

Chris J.
GoVacuum

Apr 04, 2010 | Hoover U6437-900 / U6439-900 Windtunnel...

1 Answer

Drive not working on my hover sweeper handle seems very loose


How to Change Actuator on Hoover Self-Propel vacuum Cleaner - Step by Step This is a notorious problem for the Hoover WindTunnel Self-Propelled Models. What happpens is that the handle of the vacuum that controls the transmission is controlled by an actuator arm that is attached to a cable that runs down through the machine. The poor design of this self propelled system is design in such a way that if you pick up the vacuum using the handle (this is natural way to do it, I'm guilty of this as well), it puts too much strain on the actuator arm that controls the self-propelled mechanism, and causes the nut, washer, and screw to strip right out of the actuator arm. This explains why your handle is so loose. You may verify this by looking at the gap between the upright body, and the lower agitator housing, right where the vacuum pivots when you step on the handle release pedal. You should see when you move the handle up and down that the cable and nut are the only parts moving, and you should be able to see where the nut did sit inside of the actuator arm before it was stripped. The good news is that this is a relatively inexpensive part, and the repair is really not that difficult.

I will explain step by step, and include pictures so that you may see how to replace the part that's broken.
Always be sure your vacuum is unplugged from the electrical outlet before performing any kind of service!
Tools and materials:
Torx bit or driver size T-25
Flat blade screwdriver
Phillips screwdriver
Actuator arm – Hoover part number 43143046

Here's the picture of the part that probably needs to be replaced.
hoover-self-propel-fix-7-300x132.jpg
Step 1. Place your vacuum cleaner upside down with handle resting on the floor and brush roll housing resting on a work bench.
Remove 4 screws from rug plate and set rug plate aside.
hoover-self-propel-actuator-fix-1-300x225.jpg
Step 2.
Remove power drive belt, brush roll belt and brush roll.

hoover-self-propel-actuator-fix-2-300x225.jpg
Step 4.
Remove 6 screws as shown. Also remove duct hose cover and small plastic section that was under brush roll in upper left corner.

hoover-self-propel-actuator-fix-3-300x225.jpg
Step 5.
Place vacuum right side up on top of work bench with handle all the way back. Using a flat blade screwdriver; gently pry the top cover away from the bottom housing in the area shown by(#1) arrows. Leave the 2 adjustment knobs(#2) in place.

hoover-self-propel-actuator-fix-4-300x225.jpg
Step 6. If the self-propel adjustment cable HAS NOT broken away from the actuator arm, proceed as follows; mark the position of the cable(#1) in relation to the cable retainer with a black magic marker to avoid having to readjust the cable position. Remove the screw(#2) (usually a Torx T-25 size screw) and cable retainer. Next, using a flat blade screwdriver; slide the ‘C’ ring (#3) off the metal post. Bend the metal bracket up off the post just enough so you can lift the damaged actuator up and off the post. Slide your new actuator arm back over the metal post. Slide the ‘C’ ring back over the post.Lock the self- propel cable back in place with screw and retainer. Test to ensure the power drive is adjusted correctly; CAUTION, YOU ARE ABOUT TO COME VERY CLOSE TO MOVING MACHINERY, NO NECKTIES, NECKLACES, LOOSE SHIRT TAILS,UNACCOUNTED FOR TOOLS OR CLUMSY FINGERS ARE ALLOWED FOR THIS NEXT STEP!!! Reinstall the power drive belt, plug your vacuum cleaner back in and turn it on. Check to make sure the handle is in the neutral position; observe that the power drive is NOT moving. Push the handle slightly forward. You should see the power drive wheels move in the forward position. Pull the handle back, you should see the power drive wheels move in the reverse position. Some finer adjustment may be necessary.
If the power drive cable has broken away from the old actuator; just try to get the new actuator arm as straight as possible. Using the handle and while observing the cable moving back and forth through the retainer area; move the cable all the way forward, then pull it all the back, try to gauge where the middle of the forward and reverse position would be and lock the cable down. Perform testing procedure as in previous paragraph. Again, some fine readjustment may be necessary.

hoover-self-propel-actuator-fix-5-300x225.jpg
I hope that this was helpful. I'm am 99% sure that this will fix your problem, but if for any reason it doesn't, please feel free to use the Clarification Request Form here on Fixya, and explain why this didn't work. Please feel free to logon to our website, http://www.govacuum.com/ if you need any parts for your Windtunnel.
If you can't find a particular part, more then likely we have it, just feel free to give us a call.

If this repair was hepful to you please be sure to rate the repair as helpful by clicking the Thumbs Up Icons in the top right hand corner.

Thanks again,

Chris J.
GoVacuum

Mar 27, 2010 | Hoover U6437-900 / U6439-900 Windtunnel...

1 Answer

Self propel unit broken


This is a farily common repair on this model. What ends up happening is that when someone picks up the vacuum cleaner2_bing.gif by the handle of the machine, which on this model also is the controller for the self-propelled transmission, it places too much strain on the actuator arm of the vacuum2_bing.gif cleaner.

You can do the best to try and not pick up the machine by the handle, but instead using the carrying handle on the back of the vacuum cleaner, this is distribute the weight much better, and even make the machine seem less heavy, and this will also prevent the actuator arm from breaking again in the future.

Now for fixing your vacuum, Please click the link below for an excellent tutorial on how to replace this part;

How To Replace The Actuator Arm On a Self-Propelled Hoover Windtunnel Upright Vacuum

Feb 23, 2010 | Hoover Self-Propelled WindTunnel Bagless...

3 Answers

Actuator arm for Hoover U6473-900 vacuum's drive broke


I just changed the actuator arm on my girlfriend's 6437-900 and it's pretty straight forward. Not certain how you got the transmission out, but here's what I did:
-unplug the vacuum
-remove the 4 screws and the plate over the roller brush as well as the roller brush
-remove the two screws and the plastic cover over the end of the hose on the right side.
-remove the 2 screws down in the bottom of the housing on either side of the drive wheels
-remove the single screw in the middle/bottom of the housing
-push the two tabs on the inside of the outer edge of the housing to remove the top cover
-flip the vacuum over, you'll see an "e" clip holding the actuator arm in place being careful not to lose it
-use a torx bit to remove the old cable hold down
-gently bend the metal piece over the arm back far enough to remove the old arm. Note the slot in the metal piece, you'll need to make sure you get the metal tab in the slot when you reassemble everything.
-put the new arm in, about $8 at a Hoover repair store
-put the metal piece over the rod that the e-clip fits into, making certain the tab and slot are aligned
-press down on the metal piece once it's on the rod with the tip of your screwdriver so it snaps in place, carefully put the e-clip back in it's slot on the rod.
-put the cover back on, lay the vacuum flat, put the cable end in it's channel on the arm, tighten the hold down.
-flip the vacuum over, plug it in and turn it on, being careful to keep hands, fingers, ties, hair, small children, pets, etc away from the spinning roller brush
-move the handle, still in the off position, up and down to make certain the drive wheels don't move. If they do then readjust the position of the cable on the end of the arm. The wheels should not move at all with the handle in the off position.
-enjoy

Dec 15, 2008 | Hoover U6437-900 / U6439-900 Windtunnel...

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