Combines Oil leak on top of Hydro

We had a 2366 in our shop that had this same problem, and like you, thought it was the oring or fitting. What we finally determined was that there was a small leak around one of the 4 bolts that clamp the hose to the hydro. These are not supposed to have any oil pressure to them, but one did. We cleaned out the threads, used a good loctite sealer and installed bolt, then left set overnight. Hasn't leaked since we did this.

Thank you for your advice Striker.I will try this and see what happens. I have noticed oil in these bolt holes but just thougth it was just from taken the hose off and though it could'nt be possible.Thank you once again.