Go top Lukes site, and I have posted pics on swing arm beraings ( also list kit to buy ) 
Removing old needle roller is a piece of piss-  bend a piece of 12mm rod 15 degrees so the heel is resting on one side and toe on opposite (inside  neddle cage )
Grind it flat ( like a flat srew driver ) so it fits inside of needle cage and rests on lip ...  tap away @ 3-6-9- 12 oclock      and she will slowly come out   
This is all done from opposite side ......pushing it out