Pulled the case drain hose on the slower side , lock the track and dead headed for 1 min. got exactly 16 OZ. of hyd oil, I think this is ok, case book say's 30sec's .40-.79 gallon is ok . I pressure tested the pilot solenoid valve, I think this is the high speed valve, any ways the valve had a test port to install a gauged , the book says you can use a gauged that go's up to 1000psi. The running pressure was a little over 505psi, book said any pressure at 505 psi or over is ok. I said early that the machine came with one newer track on it, the slower side is the side with the newer track , I going to swap tracks and see what happens, and will check under carriage, if I swap drive hoses, I have to get more hyd plugs,