Ford 7740 SLE,16x16 transmission?

When driving tractor for about an hour it kicks in to neutral, error code E22 comes up, i shut off ignition and wait for few minutes, restart and it drives for a few moments then stops again. i have checked PWM solenoid for resistance which it has 2.4. any ideas what else i can check?
Jim, December 2016


done
It is a pre quad mod

Jim, May 2017
Is it quad transmission (with dump button on forward reverse lever or pre quad mod

regeboy, February 2017
link Click here to see other fixes for Ford.