brake line leak

[srp323]

I've got a Case IH 685, with a leaking brake line. After bleeding, 1 day later there is air in the line of the right side. I can't find any leaks in the visible parts of the lines. I've been told to pressure test the slave cylinder. Any ideas about how to set this up?

 

[Stimw]

Is the master or slave leaking fluid to the outside of their housing?
If no external leak them it's probably the master that is letting air in. Might be a bad cup or rust/pit in bore.

 

[srp323]

Can't see any leaks at the master, the slave is within the rear transaxle housing so the leak would just be contained within this housing. I was told if there is no fluid leakage visible, the slave would likely be the problem. That is why I'm supposed to pressure test the slave.