I have been having trouble with my1680's field tracker last year and still going on this year. I had dealer work on it three times last year and twice this year and still not fixed. The right side will start raising off the ground while cutting for no reason, If I turn the tracker on off switch off and on it sometime fixes it for a few rounds and it usually works ok about a hour when I first start working for the day. This is getting expensive and frustrating, so far new wires from cab to plug, new plug, and new harnesses on 1020 and a new sensor on right side of head. The problem is hard to fix because it works some of the time, mechanic is stumped, do I need knew control in cab or what else could it be? Any help would be GREATLY appreciated!!!!!