Re stuck lift lever

[Wingnut]

Hello from Norfolk as you know I had a jammed lift lever thank to the help from here I’ve got it free and it appears to be working but now it’s back on the tractor the lift still doesn’t work so what’s the next thing to check and fix to hopefully get this problem fixed maybe the hydraulic pump

[mathias1]

not familiar with the dexta, but it could be a stuck valve somewhere. Or maybe the filter is full of dirt?
To see if the pump is worn, you can get a pressure gauge on the tipping pipe and see what pressure you get.