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Eureka Smart Vac Brush not rotating when touching floor

Replace belt. But when the brush comes in contact with the floor it stops rotating. It is switched to carpet

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Re: Eureka Smart Vac Brush not rotating when touching...

Sounds like either the belt wasn't routed correctly or the idler clamp asm.(part # 704194CSV) has a problem. There should be a diagram showing the belt placement either by the belt or on the inside of the cover.

Posted on Jan 22, 2008

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Eureka 4870 brush won't stop turning in upright position

there will be a linkage that as come loose and not operating the limit switch to turn it off, try looking at 23. Idler Clamp Assembly on the link below.

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How can i change belt. model # 4235 az

I've posted the steps below, but I am also going to give you a link to the manual, as it includes pictures that might be helpful. Look for page 4.

1) Use handle release to lower handle flat
onto floor (Fig. 1).
2) Remove 4 screws from brush roll cover.
(Fig. 2).
3) Lift off brush roll cover. (Fig. 3).
4) Remove brush roll and belt. Thread new
belt around motor shaft and brush roll
(Fig. 4).
5) Insert left end of brush roll first. Make
sure end cap fits into base. Pull right
side of brush roll to stretch belt and
insert right end cap into base (Fig. 5).
Make sure it slides into position.
6) Rotate brush roll 2 turns to center belt.
7) Replace brush roll cover (Fig. 3).
8) Replace 4 screws (Fig. 6).

May 05, 2011 | Eureka 4235AZ Upright Vacuum

1 Answer

Brushes stopped rotating

Needs a new drive belt. Find the screws holding the bottom panel onto the floor section of the vac. take out those screws and you should see the motor and the brushes and a broken belt underneath the panel. Check that the brushes spin freely. If not you may have something like hair or string or something jamming the brush. If so cut out the obstruction and then rotate the brushes again and look to see if they rotate evenly, without wobbling because in some vacs if the brushes become jammed and run like that for a while sometimes it wears out the bearings or bushings holding the brush in place and if they are worn you need to replace those as well or when you replace the belt and run the vac it wont take long to break the belt again.

Dec 07, 2010 | Bissell Healthy Home HEPA Bagless Upright...

1 Answer

No matter how many new belts we put in the brush will not rotate when it touches the floor. If you hold it straight up the brush rotates like crazy. Why is the brush not cleaning the floor. Yes, I have the...

There is probably an accumulation of slippery stuff on the shaft that drives the belt. You can scrape it clean with a sharp knife or a razor blade. You might need to use some kind of solvent to get it clean, and if you do, be sure to follow up with something like Windex on a rag. You don't want to leave anything oily on the shaft.

Feb 24, 2010 | Eureka Vacuums

1 Answer

Brush stopped rotating and little suction on unit.

Even though the brush is spinning, you probably need to replace the belt2_bing.gif because it is stretched. It is probably slipping on the beater bar..


Nov 28, 2009 | Eureka High Filtration s Mighty Mite...

1 Answer

I have a Eureka Altima and not sure how to change the belt?

1) Use handle release to lower handle
flat onto floor
2) Remove 2 screws from the front side of
brush roll cover
3) Lift and remove brush roll cover .
4) Remove brush roll and belt. Thread
new belt around motor shaft and
brush roll
5) Insert left end of brush roll first. Make
sure square on brush roll cap is in
place. Pull right side of brush roll to
stretch belt. Secure right end cap into
6) Rotate brush roll 2 turns to center belt.
7) Replace brush roll cover
8) Replace 2 screws

And you can get the maual here.

Good luck

Sep 27, 2009 | Eureka Altima Upright Vacuum Model 2996AVS...

1 Answer

Eureka The Boss Smart Vac, beater bar stops turning when you use it on carpet

It is a simple fix that you need. Your belt needs to be replaced. After a period of time, the belt stretches to the point where it is still strong enough to spin the brush when you have the machine upside down to look at it, but when you put the machine down on the carpet the belt is too weak to turn the brush against the resistance of the carpet.

Most Eureka belt changes are simple to do and the belts are inexpensive.

Oct 24, 2008 | Eureka Vacuums

5 Answers

Looking for Eureka belt 70646A for a Eureka The Boss upright

I just replaced the belt on my Eureka The Boss Smart Vac (Model 4870D). I purchased a namebrand Eureka R belt from a local vendor. I did my best to follow the instructions printed on the bottom of the machine. I turned on the vacuum cleaner and the belt brush was spinning! I dropped it into vacuuming floor mode and the belt wouldn't spin no matter what level I put it on.

I called the manufacturer (1-800-282-2886) and spoke with a very nice woman on the phone. While I was speaking with her I noticed that a silver screw was lodged within the "brush roll control" yellow selector switch. With some shaking it became dislodged and I was able to put the "brush roll control" into the hard floors setting and turn the "carpet height adjustment" all the way to the right, so that it was facing the word "low." I then followed the instructions for replacing the belt again.. (1) remove base plate (2) remove brush roll (3) place new belt around motor shaft and then around brush roll (4) insert left side of brush roll before right side (5) rotate brush roll to be sure belt is centered (6) replace base plate, making sure to insert under 4 little tabs before securing with screws.

It appears that it is very important that the carpet height and brush control adjustment are set to their highest point possible (hardwood setting) in order to get the brush to roll in a carpet setting.

"R" is the correct belt for the 4870 and should be correct for all other 4800 models.

Thank you for posting your problem to this website. If I hadn't seen that others were having trouble, I would have just given up. I hope this long post helps someone that was in my situation.

Mar 08, 2008 | Vacuums

1 Answer

Eureka vacuum belt how do i replace on model #4688

How To Replace Brush Roll Belt
NOTE: Turn off the switch and unplug the electrical cord
before replacing belt. Belt pulleys can become
hot during normal use. To prevent injury, avoid
touching the motor shaft when checking the belt.

1. Lower handle to floor to change belt.
2. Loosen, but do not remove, two screws to release hood.
Lift hood to remove.
3. Lift left end of brush roll.
4. Remove and discard belt.
5. Place new belt around motor shaft.
6. Place belt around brush roll pulley.
7. Align left end cap with base. Push end cap
securely into place.
8. Pull right side of brush roll to stretch belt.
Secure right end cap into base.
9. Rotate brush roll to seat belt.
10. Replace the hood. Make sure hood front is
behind furniture guard. Hood should seat
onto self-locating screw tabs.
11. Tighten screws.

You can goto this website enter in the model number 4688 and you can see detailed pictures of how to change the belt as well as print off a new user manual.


Feb 14, 2008 | Vacuums

1 Answer

Brush does not turn when vac touches floor

You need to change the belt. The belt will not turn the brush roll and is slipping on the drive shaft. This is creating the burning smell you describe.
You say you just brought it home.From where? From repair or is this a new machine.

Feb 03, 2008 | Vacuums

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