[donut]

Bleeding the lines is far easier than on your brake system. With everything connected and running, turn the wheel lock to lock, shut down, top off ps fluid, repeat as necessary.

Your 2 lines are a supply and return, supply is pressurized, return, not so much. that's why the supply is all "made" while the return is just a piece of hose with clamps.

I believe "bleeding" instructions were included in with the steering box, I'm going off memory as I did change my steering box last spring.