Problem With Right-Front Mower Wheel

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  #1  
Old 04-12-12, 03:32 PM
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Problem With Right-Front Mower Wheel

I've got a nine year old Sears (AYP) mower with powered front wheels.
It usually starts and runs like a new mower because I do all the necessary
servicing and repairs.

Last year I had a problem with the right-front wheel. After a few cuts it
would stop turning. Cleaning and lubing the wheel components was helpful,
but the problem didn't go away. At the end of the season I replaced several
components like the drive disc and torsion spring. The spline inside the wheel
looks good. The wheel pinion fits solidly on the axle.

I've already used the mower twice this season because the winter almost
didn't happen! The right-front wheel is turning, but it appears to be weak or
underpowered. I don't see how the belt, pulleys, or gearbox could be at fault.
The left-front wheel never loses power. I need an expert opinion.
 
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Old 04-13-12, 10:15 PM
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The only thing I can think of is intermittent slippage of the drive gears in the wheel or the actual gear that drives the wheel.
 
  #3  
Old 04-14-12, 04:51 PM
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There were no replies to this post when I checked the following day, so I didn't check
again until today. I appreciate the reply cheese.

As you know, the front wheels are really gears in disguise. They look like a wheel on the
outside, but the inner rim of the wheel has an integrated gear that is driven by a pinion.
The pinion locks tightly into these gear teeth. As soon as you pull the wheel it's easy to
see if the pinion or wheel rim is damaged. I would gladly replace a pinion or wheel if
I thought the problem would go away.

When you say, "actual gear that drives the wheel" are your referring to the gearbox?
The gearbox drives a solid axle, so if the gearbox is at fault shouldn't both wheels be
effected?

There are countless millions of these AYP mowers sold under many different brands.
I'm sure this problem has happened to many other AYP mowers. If I can't find a
solution I'll be forced to junk a mower that runs great. A very depressing predicament.
 
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Old 04-14-12, 09:07 PM
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I'm talking about the inner plastic ring gear made in the wheel, or the metal drive gear slipping on the shaft.
 
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