How to bleed slave cylinder?

[69hugger]

Guys,
I have a clutch slave cylinder that I need to bleed. It has no bleed screw, and the line is attached via a roll pin that retains the fitting, so I can't crack it to bleed. The fitting swivels in the end of the cylinder.





It seems to be an OEM setup for an early 90's camaro, at least that's what it is listed as on E-Bay. It appears to be a "sealed" system...i.e. it comes assembled, ready to use, master/ hose/ slave. But it has a reservoir, so it seems like I should be able to refresh the fluid/ bleed it.

Are you familiar with this setup? How the heck do you bleed it?

Thanks for your help!!

Bill