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Thread Number: 11062
Eureka Self-Propelled Upright Vacuums |
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| Post# 119409 12/27/2010 at 20:58 (4,862 days old) by eurekaprince (Montreal, Canada) | ||
I just saw a beautiful white Eureka SP upright on eBay - it looks so great in white.
The seller posted a pic of the underside, and it got me thinking: How did Eureka do the self-propelled feature? I see some black thingy on the rear wheels of the unit, but I can't figure out how the main motor would feed propulsion to these wheels. Is there a belt somewhere that I can't see? Or did Eureka put a completely separate motor under the hood just for the wheels? And how did the on-off slider switch for the propulsion feature work? Did the wheels shift into different gears for forward and reverse? Eurekaprince would love to know all about this magic trick.... :-) | ||
| Post# 119459 , Reply# 2 12/28/2010 at 07:33 (4,861 days old) by eurekaprince (Montreal, Canada) | ||
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Thanks for that Peter!
Wow - it sounds like you studied engineering!
Would love to see a pic of a Eureka SP vac with the hood removed.....so that I could see the whole mechanism. Interesting that these SP uprights were the only ones with a "down-facing" motor - the cogged belt must have been connected to a gear that shifted the propulsion sideways. Hmmmm.....verrrrry interesting...... :-) EPBrian | ||
| Post# 119464 , Reply# 3 12/28/2010 at 07:59 (4,861 days old) by electroluxkirby () | ||
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I rescued a Eureka self propelled upright from going to the junk yard. I cleaned her up, new bag and belt and she works perfectly. I gave her to a co-worker who is a single mom with two kids, I think she needed it more than I did. | ||
| Post# 119467 , Reply# 4 12/28/2010 at 08:36 (4,861 days old) by scvacuumguy (SC) | ||
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| Post# 119473 , Reply# 5 12/28/2010 at 10:04 (4,861 days old) by powertank () | ||
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Yeah, if I have time, I'll take pictures of mine. | ||
| Post# 119479 , Reply# 7 12/28/2010 at 10:58 (4,861 days old) by powertank () | ||
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The Hoover drive has clutch plates that rotate in the same direction. I think the foward direction is directly coupled to one of the clutches, and reverse is coupled through gears in order to change the direction. 
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| Post# 119480 , Reply# 8 12/28/2010 at 11:00 (4,861 days old) by powertank () | ||
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Under the hood of a self-propelled Eureka: 
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| Post# 119521 , Reply# 9 12/28/2010 at 20:08 (4,861 days old) by eurekaprince (Montreal, Canada) | ||
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WOW!!!!
Thank you! Thank you! Thank you Peter! Now I see why the motor hood is higher than the manual versions - they needed some height to add another horizontally-looped belt to drive one of the gears for the propulsion mechanism. Now one last question - the Hoover SP uprights seem to have motorized front wheels that have ridges that would grip the carpet well. The Eureka SP vacs propel smooth rear wheels. Wonder if these wheels would "slip" on the carpet more than the Hoover's. Any thoughts? Thanks again for taking the trouble to upload the pics - that was really great of you to do. :-) | ||
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