Bleeding the power steering

Can someone give me advice on how to get air out of my power steering?

The other day when driving home, somehow it dumped all of its fluid. When I got home, there was no fluid left. I refilled it, jacked up the car, and have turned the wheel lock to lock more than 60 times. The fluid level has not dropped as I would have expected after I turned the car on while the box and pump filled.

I have read on a previous thread that there was a bleeder screw somewhere, but I have not been able to locate it.

Thanks!

Joel

Here is a photograph. It is a jaguar mark nine power steering.