Newbie NH7308 loader on TC33D operation questions

[LD1]

Test the cylinders if you are in doubt. Lots of videos online.

A pressure gauged may also be of some use.

 

[LDR812]

I took the cover off the loader control stick. The valve block is weeping fluid from what I think is the over pressure relief valve. I think I saw a few posts about replacing a o-ring under it. I don’t think that replacing it would make much difference. Any thoughts?