Appreciate the water wetter suggestion. I am familiar with it. I am not sure that is the solution. I will consider using it.
In background, the engine doesn't seem that hot when it shuts down. I'll take some temp measures across it. The oil cooler and radiator both accumulate very fine debris across their cooling fins, but nowhere blocked or impeded. If I pull the removable screen while running, the debris scatters immediately and is almost completely pulled through the radiator ending up being clean.
I installed the updates but no real discernible difference. I think the PTO and engine thermal thresholds are too low.... AND the debris management is poor and disappointing. Since John Deere runs huge combines across our country's farms I am guessing they can solve this.
The dealer rep I spoke with seemed very interested in trying to solve the overheating problem, when we spoke on the phone several weeks ago. I am placing a follow-up call this coming week.
Haasman