JD 2020 I split the tractor to replace the clutch to do so I removed the 2 hydraulic lines to the main pump at the front of the transmission case. In my shop manual (page 220-10-3 Check Valve) it says don't lose the main hydraulic pump inlet line check valve but there is not one in the line all I find is what appears to be is part T23203 valve seat and nothing else. I looked at the parts break down 3B14 and 3B15 and it does not show a valve only valve seat. 3B16 and 3B17 part # 17 18 and 19 show a valve but only on a collar shift transmission. So do I need the valve or not?
Also I forgot to mark which line goes to which hole in the transmission any idea?
Also I forgot to mark which line goes to which hole in the transmission any idea?