e motor shaft.
Eureka Smartvac 4870 Bagged Upright Vacuum

How to Identify and Fix Common Vacuum Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced Vacuum Technicians :

You should replace the belts on your vacuum at least every three to six months if the vacuum is regularly used. This is very important for proper cleaning.
Vacuum belts connect to the brush roller and assist in collecting debris. On the other side of the belt is usually the drive shaft or motor pulley. After regular usage, the belt will stretch out, lessening the tension on the brush roller. Lesser tension diminishes the brush roller`s turn rate and speed.
The roller brush is the combination of a belt, a roller, and sometimes a small vacuum head motor. The roller spins, and the bristles attached to it sweep up debris that then gets sucked into the dirt container of the vacuum. The brush head also helps to pull dirt and debris out of carpets of various pile heights.
After a year or so, you may need to replace your vacuum`s beater brush. If the bristles seem to be squished, broken or are varying heights, it`s time to replace the brush. These can be found online with the vacuum`s brand and model of your vacuum cleaner.
On average a brushroll should be replaced every year or two. If you`re not sure if the vacuum is working as good as it could or should be, replacing the brushroll can be an easy fix .
Before you spend your time trying to go back over the same areas, hoping you`ll get it all cleaned up the second time around, check out your brush roll and belt. If you`ve cleaned your brush of any sticky stuff and hair, and it all looks fine, you`re likely dealing with a stretched belt.
Founded in 1909 in Detroit, Michigan Eureka vacuums have been in American`s homes for more than a century. Now we`re building on that experience with innovative cleaning technology to help you clean for years to come.
If an accidental jam or improper height adjustment momentarily causes the revolving brush to stop, a burn spot or a heat blister in the belt may result, causing a burnt rubber odor. In these instances, the belt is most often rendered irreversibly damaged and should be replaced immediately.
Often, a belt breaks because the machine is running over the edge of a rug or other thick items, perhaps even the vacuum cord. This causes “snagging.” When this happens, the belt becomes stuck and usually overheats. Unfortunately, this results in immediate breakage.
Rough Roads and High Speeds

Every hit and bump a tire experiences contributes to its degradation. Continued abuse will weaken the belts to the point that they begin to fail. Avoid gravel roads and hitting potholes at high speeds as much as possible.

“Vacuuming is a removal process rather than a pushing-around process,” Rathey says. Removing all particles from a hard floor on the first pass makes cleaning more efficient. With less dust on the surface, there is less chance of it turning into caked-on grime that requires wet mopping or burnishing to remove.
If your vacuum is set too high above the carpet surface, the vacuum can`t attract the gritty soil below. If the setting is too low, the vacuum`s beater bar or brushes can “fuzz” the carpet`s surface, causing it to look worn or frayed.
Vacuuming every day, or even a few times a day, is not going to create any long term problems. `But,` you might be thinking, `doesn`t the brushes spinning over the carpet on a beater bar wear it out? ` Sure, but a very small amount.
One of the easiest ways to increase vacuum cleaner suction is to empty the dust bag or container. Dust containers need to have enough space for airflow, otherwise, they could get clogged and have less suction power. Regularly check your dust compartment and empty or change it when it`s already 70-80% full.
The average life expectancy of a mid-range vacuum cleaner is about six years. You can fix or replace things like blocked filters, jammed brush rolls, frayed hoses, worn-out stick vac batteries and broken accessories yourself.
While you should clean some individual parts more often, the Vacuum Experts say it`s a good rule of thumb to take apart the entire vacuum and scrub it down about once a year.
An over-tightened belt can burn out any bearing that the belt rotates on, including alternator, power steering pump, A/C compressor, idler pulleys, etc. An over-tightened timing belt can ruin any pulley bearing it is connected with.
Average Life. Stretch belts can last 100,000 miles or more, but this can vary dramatically depending on the vehicle`s environment and where it is mounted. This is why inspection is recommended — you cannot simply go by mileage recommendations.
For most vehicles, the belt should not be able to be pressed down more than ½ inch. If it can be pressed lower, then the belt is too loose.
Belt repair can be complex, as each job is custom and completed by hand. Often, our craftsmen must sew through thick layers of leather to make a delicate repair.
If a belt is not tensioned properly, it will ride too loose or too tight on the pulley. A belt that`s too loose on a pulley will cause slippage, which leads to heat build up from friction. This heat will damage your rubber belts and cause the belts to crack and break.
It`s simple, really. We are the network`s golden child in every way, except profit margins. Fact is, #Eureka is an expensive show to make. And we could not maintain the quality of our show with the cuts it would take to make us profitable for Syfy`s new parent company.
Culturally protected by the “redwood curtain,” the city is most famous for its unique Victorian architecture, creative culture, one-of-a-kind shops, restaurants, and artisanal businesses.
With a battery life of up to 65 min, the high-capacity and highly efficient battery easily meets the needs of larger homes.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Belts on my vacuum last only a short time, the keep getting chewed up. Seems that the belt does not align properly between the brush bar and the motor shaft.
ANSWER : The belt is either contacting the
.1. Check to see that the roller is installed properly (make sure it is not reversed and that it is all the way in).
.2. Check to see if there is any play in the motor shaft and that the motor has not come loose.
.3. Check for wear on the roller where the belt contacts the roller. If this is worn you may need a new roller.
.4. If the belt is still contacting anything besides the motor pulley and the roller at this point, you still have a problem.
.
.Hopefully this will help. Let us know how you make out and good luck!

I have a Eureka 4870GZ. It turns on, but the brush roller doesn’t move. The belt looks fine. I do have an extra belt and would try replacing the old belt, but I can’t get the old one off the motor shaft or the new one on. I called Eureka customer service. The lady said there’s supposed to be a small space between the motor shaft and the outside edge of the vacuum where I can slip the old belt off and the new one on. I don’t see it. It looks like the motor shaft goes into a recessed place in the
ANSWER : Remove the top cover so that you can access to belt, You’ll find 2 rows of 4 decorative holes on the top cover, In two of the holes you’ll find the screws, Please use a flash light to see in that., Once the screws are removed, you’ll be able to take out the top cover. Pull the belt so that it should rotate the shaft and look for small space in between from where you can take off the old belt and new belt on. remove the agitator from its drive shaft, put new belt in, put the agitator back into place.

The brushes will not rotate on my hoover vacuum. the belts are in good shape, the motor is turning the vacuum motor, but the belt on the brushes seems loose. I ordered a replacement belt but still nothing. Their is a small “idler” but their dosent seem to be enough tension on the belt. Any ideas?
ANSWER : Did you order the correct size of belt? These are the belts you should have:

Hoover Windtunnel Belts

The original belt on my upright Kenmore Progressive broke and I replaced it with the spare that was in the vacuum. The vacuum and spare belt are about 10 years old. Then the spare broke after one vacuuming session and there was a burning smell coming from the vacuum. I ordered new belts and replaced it with the new belt. It seems to be working fine with no smell. I checked the belt after I vacuumed the family room and although it was in tact, the belt was very hot. Is that normal? Should t
ANSWER : The belt heats up due to the friction, as well as being in contact with the shaft of a hot motor. It is normal.

Hoover Wind Tunnel 7500 Brush not Turning. I have replaced the Brush and the belt. The problem does not seem to be either to me. I believe might be a missing part. The place were the belt hooks on is a metal pole which never seems to grip the belt well. In fact it seems loose most of the time and slips on the brush, causing the belt to eventually burn up. Could there be a missing plastic or rubber piece meant to hold the belt taught  on the metal pole?
ANSWER : Check the Idler Pulley part Number 43241004 (Item 13 in the IPB)

http://64.49.205.183/v/u6451900.pdf

I purchased a Eureka C4910 last year and have a question that I am hoping you can answer.

There are two motor actions with this vacuum, 1) the vacuum suction, and 2) the beater bar. The action of the beater bar is that motor is supposed to automatically shut off when the handle is in the complete vertical position assuming the vacuum is stationary, but then turn on when the handle is tilted toward the floor, assuming the vacuum is moving back and forth.

The beater bar motor turn-on mechan

ANSWER : Good day!

Normally when the motor is easily moved back and forth means that it have a proper lubrication,proper alignment and no clogs.

When the motor and the belt is OK the problem could be on electrical wiring and switch.

If found electrical switch burned out you need to replaced it because when the switch is burn the contact of that switch is open even you turn it ON.that’s why the motor is not function because the voltage is not pass through the circuit because of open switch.You need to replaced it.
And check some fuses if any and other burned electrical wire.Replaced it also.

Thank you and don’t forget to rate my answer.

Hoover WindTunnel Self-Propelled V Belt
ANSWER : I had this same problem with the V belt on my Hoover Vaccuum..
.There are three (3) basic things that will cause the brush roll not to spin..
.1. When handle is upright, brush roll is OFF..2. When switch is set for HARD surface, brush roll is OFF..3. Broken/worn FLAT belt or V Belt, brush roll will not spin.
.
.I noticed that the brush roll was not spinning when my vacuum was set for CARPET. After removing the cover I noticed that the V belt was loose, I thought the belt was worn so I purchased a correct replacement belt and installed it, but the new belt was also loose and when I turned the large flat belt pulley it did not turn the V belt pulley at the same time..
.I double checked the surface setting and I had the vacuum switch set for carpet, but still when I released the handle out of the upright position the brush roll would still not spin..
.My aggravation finally led me to this posting on FixYa’s website..
.The first thing I did was checked the screw to the left of the V belt as suggested by ejmjr5 and this did nothing to solve the problem or create more tension on the V belt, even when the upright handle was not in the upright position..
.After playing around with the surface setting control switch/nob I notice that when I moved the switch out of the HARD surface setting and over to CARPET, I had thought that the switch was set for CARPET as it visually appeared, but I was not pushing the switch over hard enough to click it into the CARPET setting mode..
.VOILA, the brush roll now spins correctly even though the V belt seams to be too loose for the pulley..
.You really have to force the switch into the CARPET setting. Be sure that you hear the switch/nob click into place..
.Now you can effectively clean up after that hangover of a party!.
.Burp!

Dirt devil vacuum cleaner–trouble vacuuming dirt and pet hair on carpeting –is the problem with the spinning brush which contacts the floor,  not contacting the carpeting??  I thought (when I bought this vacuum) that the aforementioned brush was adjustable to various heights of carpeting.  Sometimes, it seems like nothing is being vacuumed up –unless I have just put a new bag on the vacuum… Do I need or can I replace the spinning brush on the bottom of the vacuum so it kicks up and vacuums
ANSWER : Try replacing the belt. Rubber belts stretch out after about a year.