Thread Number: 24220
Hoover Windtunnel Self Propelled 		[Down to Last]

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Post# 271001   3/10/2014 at 08:48 (3,697 days old) by hoover78 (dallas tx)        

Hey guys, quick question. Do the Self Propelled windtunnels have the removeable nozzle piece over the brushroll like the regular NON self propelled models do? What in the Self Propelled models creates the "windtunnel" effect??

Post# 271004 , Reply# 1   3/10/2014 at 09:26 (3,697 days old) by HooverCelebrity (Germany)        

The nozzle is not quite the same, with regard to the removable piece. It's been a long time since I've had one apart - I seem to remember that the "Windtunnel" chambers are molded into the clear brushroll housing, instead of being removable as with the non SP Windtunnel. There is one piece that is removable on the SP WT, near the suction opening, which acts as a bridge in order to direct the suction to the front side of the brushroll. I'll try to take mine apart and snap a picture.

Here's a parts illustration in the meantime, you can see item 25 is the piece that sits inside the brushroll housing and comes out:

Post# 271009 , Reply# 2   3/10/2014 at 09:45 (3,697 days old) by hoover78 (dallas tx)        
thanks

 i was just curious as just to how different they were set up. Also i've noticed the inlet suction tube on the SP models is on the side as the NON SP models are semi-centered. Do you think that makes a big difference as far as air flow/suction is concerned? I've read nothing but good comments on the performance of both SP and NON SP models. Reason im asking is because i just purchased a SP NOS model from 2001. I've never tried the SP models.

Post# 271010 , Reply# 3   3/10/2014 at 09:50 (3,697 days old) by stricklybojack (Southern California)        
Here's a pic of mine,

 stricklybojack's profile picture
taken when i had it apart.

Post# 271011 , Reply# 4   3/10/2014 at 09:55 (3,697 days old) by HooverCelebrity (Germany)        

I would consider the suction tube to be "on the side" for both SP and Non SP models. It may be slightly more to one side on the SP WT, but I think any difference in performance is negligible. I actually pulled out my SP WT yesterday to vacuum our upstairs carpet. Those really are great cleaners; I saw one on eBay that was NIB, so if that's the model you got, contragulations! You should only need to replace the flat belt (belt number 38528-035), and I imagine you'll be good to go.

One big mistake that users always made with those machines is they would run it on a thick carpet with the height adjustment set too low. That causes extra drag on the brushroll, and the V-Belt then starts slipping. The groove in which the V-belt rides on the agitator can start to melt, and eventually they stop gripping one another. The only fix for that is a new V-Belt and a new brushroll. I can't even begin to tell you how many V-Belts and brushrolls we replaced at Hoover. They should have somehow modified that design to prevent that slippage from happening.

Also, don't move the height adjuster knob or the brushroll on/off knob unless the cleaner is in the upright position. You should lean the cleaner forward, or lift up on the front of the nozzle when you move those switches. Again, another odd design quirk that users would ignore, and then the knobs would break off.

Post# 271014 , Reply# 5   3/10/2014 at 10:06 (3,697 days old) by hoover78 (dallas tx)        
awesome

 thanks for the tips.. and its funny you say thick carpet because my whole house is thick high pile plush. yea i figured the flat belt would need to be changed due to the fact its been sitting in the box for so long... does the V-belt not need to be changed as often? Correct me if im wrong but when you install the V-belt, it isn't going to be tight, correct? I believe i saw a youtube vid on that the v belt will remain loose until you release the handle?

Post# 271021 , Reply# 6   3/10/2014 at 10:49 (3,697 days old) by stricklybojack (Southern California)        
Yes loose...

 stricklybojack's profile picture
.
the v belt wears narrower rather than thinner. So it can look fine but actually be worn and not do it's job properly.

Post# 271031 , Reply# 7   3/10/2014 at 11:23 (3,697 days old) by HooverCelebrity (Germany)        

Yes, the V-belt is loose until the handle is lowered (as long as the cleaner is set to "carpet"). To add to what was said above; the V-belt won't stretch; the shape of the V would narrow, if it becomes worn. If the cleaner hasn't been used, the V-Belt does not need to be replaced.

If you have thick carpet, be sure to run your cleaner on the highest setting. If you don't think it's cleaning then move it to the middle setting; but do not run it on the lowest setting!

Post# 271044 , Reply# 8   3/10/2014 at 12:36 (3,696 days old) by hoover78 (dallas tx)        
gotcha..

 thanks guys for all the useful info, looking foward to using this cleaner, especially since it is NOS "HOOVER MADE IN THE USA".. im just not crazy about the TTI models nowadays.. they have that different high pitched screaching "whistle" to them.. why is that?? is there anyway to correct that or what is it TTI did different, they strayed from the formula obviously, haha..

Post# 271046 , Reply# 9   3/10/2014 at 12:59 (3,696 days old) by HooverCelebrity (Germany)        

I noticed that as well. At some point, I think TTI standardized the motors that all of the cleaners use. That's why they sound different. I agree, they're screamers!

At least there are still a few North Canton designed models still being produced...

Post# 271047 , Reply# 10   3/10/2014 at 13:04 (3,696 days old) by hoover78 (dallas tx)        
which models

 are being still produced? I've seen the Gray Windtunnel Supreme U5472 on hoover website and a youtube vid.. it too also has that high pitched sound.

Post# 271058 , Reply# 11   3/10/2014 at 14:18 (3,696 days old) by HooverCelebrity (Germany)        

I still consider any of the original Windtunnel models to be the "North Canton design". The Tempo; the grey bagged non SP Windtunnel you mentioned; and the SP Windtunnel. Yes, the motors have changed, and they are screamers - but the cleaners are still the same overall design that originally came out of North Canton.

All of the newer "T-series" and the "Bagless Pet Rewind" vacuums... I don't consider any of those to be much more than a TTI design with the Hoover logo slapped on to it.

Post# 271072 , Reply# 12   3/10/2014 at 15:09 (3,696 days old) by hoover78 (dallas tx)        
true

 well you know alot of the "original" windtunnel designs are now being rebadged ROYAL.. like the tempo and non SP windtunnels. I just saw the Platinum Series and Task Vac. regbadged ROYAL.. and are all navy blue colored with gray bag and accents... nice looking. TTI as well obviously.


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