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This model does not have a belt. The brushes are turned by airflow through a turbine assembly. Clean the lint screen first, then try to turn the brushes by hand. If they will not turn by hand remove the brush assembly, if the brush assembly turns freely the turbine may be seized.
Check the turbine/pulley on the motor to make sure the set screw is secure If there is no set screw, there will be probably be spring insert or keyed shaft to hold it in place. In that case, make sure the part is not cracked or missing the insert. If the pulley is not properly secured, the motor shaft will spin inside it without turning anything.
Also verify that the belt has proper tension and is not hardened and glazed. You should be able to turn the brush freely by rotating the turbine/pulley and vice-versa. If it is very stiff or rough-turning, check the brush roller bearings.
Hello, their is two reason why the brushes don't spin, one would be the brush brock is broken, take out the brush, and mnake sure their is a plastic two inch shaft sticking out, if not, then the brush block needs to be replaced, if fine, the the turbine is frozen and will need to be replaced, take the lid off and replace the black turbine, I can send you anything you need, or if you have any questions feel free to call 1561-848-3387 Thank you, Teresa.
Clean sweep Vacuums
First, please be sure to unplug your Steam Vac and remove both the clean water and the dirty water tank.
There should be a square stem that sticks up in the center of your brush assembly. If this stem is broken you will need to replace the complete brush assembly. If the stem is good; turn your cleaner on it's side and check in the area where the brush assembly goes (with the brush assembly removed). In the center of this area there is a square hole where the stem from the brush assembly goes. The square hole is in the bottom of the turbnie that spins your brushes. Using a large flat blade screw driver (not so large that you'll damage the hole), stick it in to the square hole and try to spin it. It should spin freely, if it is very hard to spin or won't spin at all, your turbine is bad and will need to be replaced.
Hoover part number for brush assembly:48437022
Hoover part number for turbine: 43191008
1) check the filter by the spin indicator (the plastic cover snaps off). Clean if necessary. See if this solves your problem.
2) take out the spin brush assembly (pull out, there may be tabs you need to push to get it all the way out. Clean out dirt and hair. This may be all you need to do, if not take step 3
3) turn on the machine with the brush assembly out. Do you see where the square shaft the drives the brushes goes in? If the socket does not spin, you probably have a seized up turbine assembly.
4) remove the top that covers the motor/turbine (you probably have to take out some screws) The turbine assembly is towards the front. Remove this (again, a couple of screws) and turn it over--there will be some gears. If you can get these gears turning smoothly together you should get the turbine working again. I used a pair of pliers to turn the metal shaft.
SAME PROBLEM Hoover F7452 900 brushes won't spin; cleaned and move freely, under filter slid out and cleaned, still froze up....had it a little more than a year so probably no warranty.....assuming turbine related and will take it to dealer......how common is this problem with this model???
brushes not turning are usually caused by the turbine bearings have seized. The turbine cost is about $35 average. on the bottom you can check a pull out filter to clean. there are also 2 screws that are recessd check by hand for tightness that hold the turbine. checkthe brushes for cleaning and free of debris. check the square shaft on the brushes as well. take it to a trusted vac shop who works on hoovers if you are not mechanically inclined for this type of repair.
There is no belt, the brush block is turned by a turbine. Check the brush block, make sure that the shaft that goes into the turbine isn't broke off, If ok, then replace the turbine, or take it apart and clean it out.
If the brushes quit spinning, either the brush block shaft that goes into the turbine broke off, or the turbine is bad. This unit is tricky to take apart and then put back together again. But pull the brush asm off, then start taking out screws. But if after you pull off the brush block, look up where you will see a small square hole, turn unit on and if not turning, usually the turbine is the cause and will have to be replaced.
Pull out the brush block, do the brushes turn freely and is the shaft that goes uo into the turbine there or did it break off. If the brush block is ok, then the turbine is probably bad and will need to be replaced.