How do you replace the brushes on a hoover f7452-900

Yes, they are everywhere including Walmart and eBay.

Replacement for Hoover Windtunnel UH70400 Brush Roller ...

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Replacement for Hoover Windtunnel UH70400 Brush Roller Fits UH70400 Air Bagless Upright, Compatible with Part # 303792001, by Think Crucial: ...
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Hoover UH70400 Wind Tunnel Air Brushroll Assembly ...

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Replacement Brush Roller, Fits Hoover UH70400 Windtunnel ...

https://www.thinkcrucial.ca > products > hoover-uh704...

Replacement Brush Roller, Fits Hoover UH70400 Windtunnel Air Bagless ... A brush roller on your vacuum is really like a broom for your carpet, that gets all the ...

HUNDREDS here!

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You need to replace the brush block assembly

The brushes are turning by an air driven turbine. The turbine has a pivot bushing made of steel inside of it that gets rusty because of the water that is running through it. The turbine will have to be replaced. You can find a genuine hoover replacement part by following the link below.

Turbine Brush Gear Part # 43191008

F5914 Parts Link

http://www.usavacuum.com/Hoover-F5903-F5904-F5905-F5910-F5912-F5914-F5915-s/138.htm

The brushes are turning by an air driven turbine. The turbine has a pivot bushing made of steel inside of it that gets rusty because of the water that is running through it. The turbine will have to be replaced. You can find a genuine hoover replacement part by following the link below.

Hoover SteamVac Replacement Turbine Brush Gear Part # 91001097

F7425 Parts Link

http://www.usavacuum.com/Hoover-Steamvac-s/109.htm

The brushes are turning by an air driven turbine. The turbine has a pivot bushing made of steel inside of it that gets rusty because of the water that is running through it. The turbine will have to be replaced. You can find a genuine hoover replacement part by following the link below.

Hoover SteamVac Replacement Turbine Brush Gear Part # 91001097

F7425 Parts Link

http://www.usavacuum.com/Hoover-Steamvac-s/109.htm

The brush system on this model has a poor engineering design in that the brushes are running off an air turbine, which uses a steel bushing to spin the turbine which gets rusty from the moisture when the machine is being used. No long term solver. I would replace the machine with a Dirt Devil Platinum Force model

If you turn the vacuum so the bottom is facing up you will see the base plate that covers the roller brush. There will be four screws (usually phillips head), remove the screws and the base plate will lift off. You now have access to the roller brush and belt. Lift the roller brush up and remove the old belt. Place one end of the new belt over the motor shaft and the other end over the roller brush and put the roller brush back in place. Now simply replace the base plate and you're done! This models requires Hoover belt # 38528033 (single) or Hoover belt #40201160 (2 pack). You can get this belt at www.vacbelts.com.

Here's the pages:
http://www.vacbelts.com/hoover-40201160-belt.htm
http://www.vacbelts.com/hoover-38528033-belt.htm

http://www.hoover.com/pdfs/manuals/F5914900.pdf

Press all four latches (B) and pull brush
block out. The brushes can be cleaned
under running water

Godbless

Check to see if the shaft on the brush block hasn't broken off. Otherwise it is the turbine that drives the brushes and is either clogged up inside or needs to be replaced.

Hoover steamvacs don't use belts. If the brushes are not turning, pull the brush block out, turn the machine on and see if the square hole where the brush block was, is turning. If not then the turbine is bad. Sometimes you can take the turbine apart and clean it out. most times I have found , replace it.