tomatofarmer - 3/24/2012 09:13 We got our 4940 going. I will try to explain it If you are at full rpms and have the Hydro handle full ahead the engine goes into cruse control an cause the hyd oil to overheat. We have ran it the last two days at full rpm and the hydro handle 3/4 ahead 2-3 gears faster than we want to run and have had no trouble with it overheating. the Deere tech is coming to do some re-pluming on Monday so we'll see