draining power steering fluid

[p00t]

The stuff thats in the PS system now is very old and needs to be drained. How can i drain all the fluid from the system? I have looked and saw a large drain looking nut on the bottom of the steering rack but upon further investigation, i have found that the service manual says its an adjustment nut (thank god i didnt try it).

I think im set on how to bleed the air out of the system when refilling but i have yet to find a plug of somesort to drain the fluid out of . :help

[silviaNE]

WHAT YEAR?

[p00t]

arg, sorry, 93 fastback.

[jrc90240sx]

Just discont the return line from the rack, gravity will drain the return line, and tank. and just turn the wheel back and forth a couple of times and it will drain all the high presure lines.