Hello- I have a Kubota M6800 2wd that has an issue with the 3pt Hydraulic Lift. When I move the lever all the way up, the arms come up and then it binds up as if the relief valve does not kick in. I then move it slightly downward until the noise quits. The problem with this is that having a box blade on the back of it and when I lower the lever down to the neutral position, the implement will drift downwards. Can anyone help me out on how to correct this issue?