Ok, finally got a chance to look at things in greater detail. Removed this plug highlighted in green:
@northIdahowolfman: Is this one of the plugs you were talking about? Or were you talking about the plug holding the hydraulic/trans mesh filter?
Initially nothing came out, either while cranking or while it was running. I then cleaned out what I think is a vent, looks like an upside down hook. Opened the plug and fluid came out and then pulsed with a pretty good flow once tractor was cranked and running. Oh also removed plug on the backside of that same block and fluid flowed out. After doing this the 3 point started to work. I thought it had magically been fixed, but then after about a minute it stopped working and the 3 point and lever would flop all the way down.
Not sure if there is something else I am missing? Can I assume that the trans/hydraulic screen filter is good since fluid is flowing? Maybe it's not high pressure enough and I should remove and clean (even though it is new....)?
@Russell King: The linkages appear to be connected, I'll get a photo posted here shortly.
There is what looks like another plug on the backside of the one that was highlighted in green, i'll post a pic of that too.
Can I assume that there is no need to remove the input and/or output lines to the pump to make sure fluid is flowing since it came out of that plug by the seat? If they should still be removed and checked, should this be done w/ tractor off or running?
Thanks so much for you help and patience while a mechanical moron tries to figure this out....