I picked up tractor today. They could not look at it for more than a week. I can use it until then for everything but PTO. I drained the hydraulic system and changed filter. The fluid looked a bit darker then new, smelled ok and had no particles in it. I filtered it two times to see what was suspended in it. No fibers or metal. I cut the filter into to see if it was clogged. Nothing, no metal or fibers. Refilled system with new filter. Did not make any difference. Does anyone have any suggestions of what to check? Any help would be greatly appreciated. J4200, where is the clutch you were talking about? Do I have to split tractor to get to it? Thanks John t