Super A center steering arm removal??

I'm in the process of fixing up a Super A (s/n311906). The center steering arm is badly worn and I need to replace it. As I don't have a service manual yet, I was hoping someone here could tell me the easist way to get make the swap. Mine has the tapered shaft design. Looks as though the axle has to come off, is this correct? Will the it just slide out of the pivots or what? Is there a better way? Thanks, Skeeter

You may find the key way for the woodruff key on the tapered shaft is out of shape. I had to grind a larger key to fit as key way was V shaped. On one tractor we actually welded the key in shaft and ground it so steering control arm had to be pressed on. That one was also the most sucessful. It has been 10 years and the tractor steering is as tight as the day it was new. Everyone told me I would ruin shaft. I advised it was already ruined. Those shafts and cogs are quite expensive even at scrap yards.