Elmer or Barry - I have 3 point problems

My db 990 diesel 3 point won't lower either. I read Barry's message and will check it out. My push rod guide (behind the control levers) is broken inside the casing and the push rod spring and clip keep falling off. Where could I get a good pushrod guide and pushrod with spring and clip?

I looked in at the RH 2 screw cover plate and the oil only oozs from the end of the valve spool when I try to lower it. It won't move.

The flexible control cable has a twisted strand, but still works somewhat freely. Could that be a problem too? My draft control lever is broken off, but I didn't think that would prevent it from working.

Finally, the control levers don't hold in place and it appears the amount of movement is very, very small compared to a ford 8N.

Thanks,
mark