The John Deere 7230 transmission shifts into neutral on its own. This happens when the PTO is on or off. Hydraulic fluid is full and clean. Coolant and oil are fine. What could be the problem?
There are two possible problems. Either the transmission sensor has failed. In this case, the sensor must be replaced. Or the clutch isn’t getting enough pressure. In this case, you will need a new clutch assembly in the tractor.