I bought a JD3020 last year and am using it for a small haying operation. Haven't needed the hydraulics until now.
I noticed one of my two quick connect valves is stuck depressed (outer ring pushed back). When I turn the pin below the valve, oil comes out. But I cannot figure out a way to get the ring to pop back forward... there's nothing I can "grip" to pull it. The other side appears to be functioning fine.