The proofmeter drive was repaired and works great pump works great. Lift is still not working. Removed lift cover and cleans hydraulic tank found a metal cap in tank that I have no idea where it came from (see picture) removed main control valve and it was full of black coffee ground looking stuff and water. Blew air in main control valve and cleaned it real good and it was working great. Also blew air in where the inlet into the lift cover and main lift piston was moving ok too. So I decided to put it back together and see if it would work? Filled with new TSC Trans / hydraulic fluid replaced o-rings on lift cover and accessory plate. Primed system and still nothing works at all.