Question about Hoover H-F7425-900 SteamVac/SpinScrub Hand Tool Steam Vac Spin scrub
I need to inspect the spin brush vacuum motor
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Posted on Jan 02, 2017
the brushes are activated by suction, my berings and gears froze up, i took it apart, kinda hard to figure out, but not as bad as it looks. i lubed the berings and the gears, then i took an air compressor to the activation fins and let it spin, lubed again then hit it with air again, now works better then new.....GL
Posted on Jul 29, 2008
SOURCE: Spin brushes on Steam Vac
The cover is only secured by 3 screws. One on the top, and two other on the underside. The two on the underside are located on the black plastic and are deeply recessed. After removing these 3 screws, on the top there are 2 snap in post. Simply squeeze these posts inward, towards the center and the cover should lift off.
Posted on Aug 28, 2008
The problem I found with one a neighbor was tossing out is the bearings in the part that drives the brushes were stuck. Lubing them up solved the problem, but took a bit of work to get into. This also provides a good chance to clean the crud out of bits that usually don't get much attention. I found mine clogged with a fair amount of pet hair.
You'll need a Phillips & Flat Screwdriver, some light machine (3-in-1) oil or Lithium (white) grease, and a lot of patience. Having a pan or something handy to keep all the little bits organized would help.
First remove both the soap & recovery tanks, they'll just get in the way & are designed to be easily removed & replaced for filing/dumping. Be sure to fold the "wings" for the recovery tank in or they'll foul removing the cover later (as will the brush speed button).
The tricky part is getting the Brush Speed knob off. It's held on only by friction, but can be tough to pull for without breaking the plastic stick it's pushed onto.
Remove the brushes. There are 4 blocks between the outer & next in rollers. Put the flat screwdriver between the gray & clear plastic, pushing gently toward the brushes. This pushes a wedge away far enough from a hole in the gray plastic to "unhook" the brush housing from the main body. Once all 4 are clear, the brush assembly should pull out easily.
Remove the 2 big screws in front of the brushes and the one at the back of the clear plastic front of the vacuum bit. The small ones at the extreme front corners hold on the clear plastic front, and can be removed if you want to clean out the vacuum channel, but are not necessary to remove to remove the top.
Toward the back sides of the top are 2 slots that hold this part on. Once the front screws are removed & the front is loose, push the side in gently & you should be able to lift the back of the cover. Push in lift both side, the top should pop right off.
Now I have the top off, holding 2 black & 1 silver long screw. In the center-front of the new-exposed guts is a box with a round top & a cone at the front with 2 screws.
This is the Brush Motor Assembly, and it's actually vacuum-powered. Remove the 2 screws holding down the from, then look for 2 large holes on the bottom of the unit behind the black "squirter bar".
There's very long screws at the bottom of these holes that also hold down the brush motor.Once the 2 bottoms screws have been fully loosened & the top-front screws removed, the brush motor should pull up easily.
On the right is a square port, in front the the brush speed stick (where the gray button pops onto). on the left is a gray & black hose, these should pull off easily, but may have some liquid in them.
Pull out the brush motor & set it on a convenient spill-resistant work surface upside-down. You should see the square-hole drice for the brushes, a gray piece of plastic, & a cresent-shaped hole.
The port at the front & hole on bottom provide an air path for the vacuum to poll air through this assembly & spin the brushes. You should see 2 screws at the back of the motor & 2 more at the bottom of holes surrounded by the gray plastic. Remove all 4 screws.
You can now pull off the bottom cover with the gray plastic. Front to back you should see the brush drive gear, an intermidiate gear, ant one of the bearings for the fan that drives the whole thing. pulling out the bearing & gears to clean out this area & lube up the gears with some Lithium Grease helps, as well as making sure the bearing is well lubed with 3-in-1 oil and/or lithium grease.
The top is held on at this point with 4 platic clips. The top doesn't need to be removed unless you *really* have to see the fan. The clips can be broken off if one is not careful, and there's nothing in there to be lubed. Best to leave it as-is.
At the top of the driveshaft is a second sealed bearing. I couldn't figure out how to get it out without braking it, lube this one in place. The bearings are supposed to be sealed, so removing the black "washer" from the bearing is done completely at your own risk. I just put some oil on there, spun it to work it in, then repeated with the white grease.
Replace the intermediate gear, the brush drive gear, then the lower sealed bearing in that order. You can spin the gears to ensure they're spinning well. Mine was OK, but after a bit of use worked the grease in & the brushes really started spinning.
Keep in mind everything here except the screws is plastic, be creful to get a snug fit with the screws without overtightening. "Gorilla-ing" the screws will just break the plastic & make the whole adventure an exercise in frustration.
Reattach the bottom plate with all 4 screws, 2 in the holes in the gray plastic, 2 in the back.
Reattach the gray & balck hoses to the left side of the brush drive. They're 2 different sizes, so there's only 1 place the smaller hose will fit easily. Place the assembly back in the machine & replace the 2 screws in the front.
Flip the machine up so you can put the 2 really long screws back into the underside of the brush drive. There's 2 guide slots on either side, make sure the brush with the indicator wheel on top goes into the big hole on the right. You may need to spin the brushes a bit to get the center squure stick to line up with the hole in the drive gear. The brushes should pop back in easily if everything's lined up right.
Put the top cover on, making sure the Brush Speed stick & center screwhole line up, as well as the back sides snap into place.
Screw down the top, then flip the unit up so you can snap the bottom-front of the top over the gray wedges on the front, then screw into place.
Replace the Recovery Tank, fill & replace the solution tank, and test-drive.
Posted on May 27, 2009
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
Turbine Brush Gear Part # 43191008
F5914 Parts Link
Posted on Feb 28, 2010
Either the pin on the brushes that attaches to the motor shaft is broken, or the motor is dead. Did you check the switch on the front of the unit to make sure it wasn't turned off?
Posted on May 16, 2012
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