John Deere 4300 hydrostatic won't move tractor

[Dennisfly]

The neighbor has a John Deere 4300 and was using a 3 point PTO driven stump grinder. No big event or noise, but at some point the the tractor would not move forward or back and the rear PTO stopped. The 3 point still works as does the front end loader. The PTO shaft does not turn by hand. Any Ideas?

 

[RNeumann]

Sounds like a safety or interlock is the place to start.

 

[Sheldon Hamblin]

Any chance the transfer case is in neutral?

 

[Dennisfly]

The drive shaft was broken. The stump grinder was new and he set the slip clutch too tight. He said there was a clutch installed spring height specification and a bolt torque specification that didn't agree. He set it to the tighter of the two which was too tight!

 

[RNeumann]

Thx for the update. “No big event or noise” is all relative I guess. Haha U can give him a hard time for that one!!!