what can I do about this? The tractor runs great .I changed the unit with new oil and filters. Thanks
Are you really saying the oil in every reservoir is milky? Engine, PAS, Driveline? Share a little more background and circumstance (like the tractor fell through the ice) with us as none of us is blessed with a crystal ball.
I would just run it enough to circulate the oil through the system, cycle each system involved, and then change the oil again, and again, until the water (milky appearance) is gone. Water can be very destructive to machined surfaces as it has no lubricating characteristics.
Is this rig new to you? What can you find out about it's history? It is strange to have water contamination in every system. I do wish you well in resolving this.