how fast are you running the feederhouse backshaftIJ and is this high yielding corn or high %IJ i have had trouble with a 30ft flexhead w_ an air reel but don't have a 18 row head yet. just 12 row 20in.
Have you installed the direct drive system so that you are running the heavy duty kevlar beltIJIJ Thats what we put on when we sell a Geringhoff corn head for these combines. You can order them from your nearest Geringhoff dealer. If you have any questions give me a call.