using my (new to me) 4440 quad with a discbine for the first time yesterday. My pto seemed to engage, but my lever was very soft, without much of a friction point when engaged. It began to turn ok with no load, but when under load seemed to slow way down. Handle seemed to want to move to disengage position on its own every time the foot clutch was used too. I was told when purchased that the pto clutch discs were replaced already about 300 hrs ago....with paperwork. I also noticed that my power steering was very stiff while running the discbine, as it was very hard to turn on the corners of the field. What is/are my problems????? Fluid seems fine. When I disengage the PTO, steering works fine again....