I have a 611B case with an eagle hitch. We have had it for a about 25 years. getting on and off the tractor 3 or 4 times and man handling the implement didn't used to bother me so much but they seem to get heavier as I get older. I know the theory is that you are supposed to be able to hook and un hook from the seat but that is so far from reality in my case. Part of the issue is that with gravity the arms don't go all the way down. So I have to get off the tractor, stand on the arm and then lower it. I know, real safe. What would keep the arm from going all the way down? I have even thought about tying cement blocks to the arms.