I just joined the forum I have 3 tractors a JD 3600,an old 4600Ford and an old Russian air cooled Belarus. What I need help with is my JD 3600 it seems that the rear PTO is not turning fast enough. I have owned this tractor for several years and never had this problem. I don't know if my brother hit something or what but it seems not to turn fast enough to turn my finish mower and cut grass. I haven't disconnected the mower yet to see that was the problem. If anybody knows this little tractor please help.