Rear drive wheel-Toro model 20374- keeps coming loose?

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trooper1954

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• Tuesday at 3:18 PM / Rear drive wheel-Toro model 20374- keeps coming loose?

• #1

Hi all,
Just replaced the belt on the above captioned mower, and made sure all bolts were tight, however the rear left wheel keeps loosening and falling off.
I suspect that the threads on the pivot arm may be stripped,but it shows no sign of this visually.....anyone else had this problem or have an idea why?
Thanks.

 

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trooper1954

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• Yesterday at 1:54 PM / Rear drive wheel-Toro model 20374- keeps coming loose?

• #2

I guess no one has had this issue.....almost 200 reads and no comments. I'm going to try threadlocker on the issue, as vibration was something I hadn't considered and the threads on the nut, and on the pivot arm look okay

 

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Oddjob

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• Yesterday at 7:35 PM / Rear drive wheel-Toro model 20374- keeps coming loose?

• #3

Does your machine have a wave washer on the wheel assembly? If so, maybe it has lost some of its liveliness. You could try bending it a little or buying a new one. Or, as you have done, use thread lock. The vibration from the engine does tend to loosen bolts on mowers. BTW, congrats on finding the nut in your lawn after the wheel came off.

 

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Auto Doc's

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• Today at 9:54 AM / Rear drive wheel-Toro model 20374- keeps coming loose?

• #4

I also recommend thread locker but expect it to be very difficult if you have to take it off in the future. Red works well for most light applications.