Question about Hoover Vacuums
This machine has no belts. There is an air driven turbine that propels the brushes. If you look under the little glass window at the left front corner of the machine, there is an intake screen just above the indicator dial. That screen is there to keep debris from entering the turbine and will have to be kept clean. If it is clogged, then the turbine will not function.It is also possible that moisture has entered the turbine and siezed the bearings. If that is the case, the turbine would have to be replaced. Also, because this turbine works off the suction of the motor, if the recovery tank lid is not on correctly, then the suction loss will effect the brushes. Check the lid and make sure it is on right.
Posted on Jan 13, 2008
SOURCE: hoover F7431-900
If the screen is not dirty, and the flapper valve to the turbine inlet is open, then the problem is mostly a stuck turbine impeller. The turbine impeller on my F7431-900 has seized TWICE!! The shaft for the turbine is not made of stainless steel, therefore is subject to corrosion. If you have a handy husband or boyfriend, give it to them, because some disassembly is required to access the turbine unit. After the turbine is removed and opened up, get some P'Blaster and squirt is on the shaft. P'Blaster is a rust removing solvent and is great for freeing up rusty nuts and bolts. Allow the P'Blaster 20-30 minutes to penetrate the corroded shaft. Then, grab the impeller and wiggle it back and forth, until free rotation is achieve. The last time my brushes stopped rotating, and I disassembled the turbine, it was really siezed up. I thought I was going to need to buy a new impeller assembly. But, that P'Blaster is really great stuff for breaking up corroded parts (it's like WD-40 on steroids!). I did need to give the turbine's impeller a good twist to free it up. If you can't get the turbine impeller to rotate, then buy a new one (about $27.00). Then, you can just install it and save a bundle on labor. I think I want to become a Hoover vacuum repairman. Their business must be booming because Hoover is putting out a poorly designed turbine unit. Boo, Hiss...... shame on Hoover for selling us **** like this.
PS You can get P'Blaster at any auto store, like Pep Boys, Autozone, etc.
Posted on Aug 28, 2008
The replacement parts can be ordered from hoover or through any hoover dealer. thier info can be found through the Hoover website. If you are unable to obtain a direct match, there may be available ones in different color.
Posted on Oct 25, 2009
This machine has an airdriven turbine that drives the brushes. The turbine needs to be replace because it is spinning on a steel bushing which gets rusty from all the water going through it.
Posted on Nov 28, 2009
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