4200XL hydraulic issues

[Tk421reporting]

Originally Posted by gmmiller06

The verdict was an incorrectly assembled pressure relief valve....apparently I had messed with it and not put it back correctly. She's up and running again after about 5 years on the shelf.

Nice, picked up a 4200 second hand and have been slowly diagnosing issue after issue, it's almost there but I'm getting a lot of air in my line with similar results. I did have my pressure relieve valve fly across the room with some oil behind it, I'll double check how it's in there, probably going to tear it apart and redo all the seals, double check the servo adjustments and go from there, thanks all!