2000 Ford Hydraulics

I inhereited my dad's 35 Ferguson and was using it for the last 6 month or so. When I went back to use the Ford with loader the lift wouldn't work at all. I tried the lift spool valve in both positions and pulled the plugon the side of the piston pump and it was moving fluid.

The fluid level is ok. I am leaning towards the relief valve. Do you guys have any idea's. I am about to tear it down, but if there is a quick fix it would be greatly appreciated.

Before this, the lift and loader were very strong, lifting the tractor of the ground when I pulled out some trees from the fence row.

Thanks for any help. By the way, the 35 Ferguson now has a wacky hydraulics as well, but that is anothe story! It involves the draft lever.
Thanks again.

I had tried this once before per the IT manual and then the lift worked. But this time I ran the tractor for a good 30 minutes at idle playing with the levers, draft control, loader control valve and checking flow on the pump and the lift still didn't work. I wanted to drive it around some, but it is hard to do with the front hay fork on the ground!
thanks, scott

I had tried this once before per the IT manual and then the lift worked. But this time I ran the tractor for a good 30 minutes at idle playing with the levers, draft control, loader control valve and checking flow on the pump and the lift still didn't work. I wanted to drive it around some, but it is hard to do with the front hay fork on the ground!
thanks, scott