[Ducati] 748 Rocker pin extractor

[musical at interbaun.com]

First off thanks to all of the helpful postings in regards to cam 
extraction. But the main problem I'm having is using the rocker pin 
extractor tool, and how to use it . I purchased the tool from 
www.desmotimes.com, and I can't contact them without being on the 
message board which I can't seem to get on to. Any ways if you guy's 
could tell me how to use this tool, and once it is screwed in, how do 
I use the lock nut and what are the rest of the pieces on the tool 
for. I don't know if I just pull hard straight out, or do I screw it 
out, I am really in the dark with this tool and pulling the pin out. 
I am a pure rookie with this part of it.

Barry