Update. The next time I went to use the tractor, all the hydraulics are gone. No filter to speak of, just a strainer. Looks like I need to pull and check the pump.
198? Case 245, 7qa loader. I notice last week that it started to have issues raising the loader, and the 3pt hitch. it is slow and jerky, until it has run for awhile and then it seem Okay. it is between 60 and 70 degs here. The fluid level is good, but is milky, but has been for a while...