[maddog784]

I highly doubt that your relief valves have anything to do with this. The leak is most likely between (and including) the lift valve and cylinder. Check to make sure all of the hoses are tight. I believe that the lift cylinder on your model tractor has ORB fittings on the cylinder - an O-Ring may have gone bad. You also may have lost an o-ring in the valve body. The O-ring on the cylinder piston also may have become cut or torn, causing an "internal" leak, if you will. A good start would be to make sure all of your hoses are tight. Take it outside and wash it, then store it for the night. Come back the next day and look for fluid drips.

Best of luck,

Nate