I’m looking at 4640 with Powershift transmission. The only problem is the tractor keeps driving until you try to move the tractor out of the park. Has anyone had this problem? The trans-side valve body has been reworked.
Is the engine idling at 800 RPM? If so, will the engine continue to run with the clutch pedal depressed while the transmission is in gear? If not, it sounds like the trance is switching to 2 speeds simultaneously or the differential is locked.
I forgot the parking lock as possible it’s a cable lock problem.