How to install power steering pulley?

[rechinca]

I have the correct pump, pulley and the woodruff key. The shaft on these pumps do not have threads on the inside, so how exactly do you press the pulley onto the shaft and how far? As far as the nut, still have to order that, how do you hold the shaft still to install it? I am trying to find the info in the shop manuals but must be looking in the wrong section. I am used to the style that is threaded and the tool helps press it on.