I pulled the connector off at the solenoid and I get 12.5 volts with the switch out and tractor running. 0 volts switch off.
I am going to assume that he PTO engagement solenoid is bad.
Now do I spend the extra and buy JD or has anyone used the after market ones?
Thanks

 

The technical manual says to replace the PTO solenoid if the coil resistance is not in the range of 10.5 - 11.5 ohms or if either side of the coil is shorted to case ground.

 

thank you for the manual information! I wish I would have remembered to check the Ohms on the coil before I messed it up trying to take it apart. It would not slide off the stem of the solenoid. It was also rusty as all get out. I do know that when I hooked 12 volts to it nothing worked the push rod didn't move and there was no magnetism to the coil. I am stuck buying a new one now. I am about positive that the solenoid coil was bad. Next time I will check the Ohms on the coil and I will check it on the new one when I get it so I have a base line if it happens again.

 

I called the dealership and they had the correct solenoid assembly in stock and I went and picked it up.
$129.99 once installed it fixed my PTO.
P/N AM878297
just for personal reference I checked the resistance and it was 8.8 ohms.