Prentice loader

[Stumpjumper]

I have a 2003 prentice loader and the caps along the side of my seat thats is connected with the foot pedal to work the prentice have small half cut squares in them and hydraulic oil is comn out, I put new gaskets on but still comes out..are they like an air gap or can they be guked shut w something?? They just started leaking, wondering why now? Oil leaks all over my hood and back window etc.

[mike_belben]

A picture would help if you cant name the part accurately.  Are you talking about the back side of a spool valve? The detent spring caps?