I have a John Deere 14SB that I've been using for quite some time, fantastic mower. A year or so ago, the right rear wheel stopped self propelling. The left rear wheel still worked, so it wasn't a major issue. Recently the right rear (working) wheel began locking up at random. Then self propelled stopped working on it, too.
Notes/symptoms:
1: The drive belt still engages when the lever is pushed and it spins.
2: With the mower off, if I push the mower forward, there is a continuous clicking sound (which I think means the transmission is still functional).
3: With the self propelled lever engaged, if I pull the mower backwards, the wheels don't lock.
4: The teeth on both the wheels and pinion gears appear to be perfectly fine and not stripped.
I haven't found a ton of information about troubleshooting, but my best guess is that the if I remove the wheels, then pinion gear, there is a spring and Keyway. I'm assuming with the symptoms I have listed I'll find that on both wheels either the spring or keyway will be broken/damaged. Does this sound right as to why my self propelled won't engage?
