This new to me Deere 6620 sidehill with a 220 platform is cutting beans just fine. Shaving them right off at the ground. It is working so well I question whether I should work on anything. But, I really don't think the dail-a-matic is working. With the head down on the ground you can move the dail-a-matic knob from "0" to 1, 2, and 3, and the head does not raise any. Then with the head down I went over to the right hand side and pulled up on the rod from the sensing linkage to the electric switch and nothing happens. I think when you pull up on the rod the head should raise. Can't find the fuse. Manual (Deere 200 series manual) talks about an inline fuse in engine compartment along dash. Deere 200 series manual also talks about manual push buttons on the up/down solenoid. I don't see any push buttons on mine. Can I rule out the head switch by "jumping" two of the three wires coming from the head? What about hot wiring the up/down solenoid? If it would work then it would be wiring. Don't know if it is related but after 2 or 3 hours of operation the hydraulic oil temperature comes on. Any ideas appreciated.