I have a, '03 x475 (AWS) and it has a peculiar issue of not wanting to move. I drove it off a trailer but a 1/2 hour later the forward and reverse petals are hard to push and I get a whine when I force it. It seems like the brake is still on but it has been released. Additionally, I tried to move the lever by the transmission into the 'freewheel' position so that it will roll, and it does not want to go all the way up and the tractor will not roll. The hydraulic fluid level is correct. Any ideas?