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

trooper1954

Well-Known Member
Joined
May 29, 2012
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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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