2009 Campagnolo Khamsin:bearing access?

squeeler

My front wheel has developed a bit of play so i took the wheel off, removed the QR skewer and have absolutely no idea how to get to the bearings to swap them? I've looked at the exploded diagram in the pdf on the Campagnolo website, got the part number, searched for on-line videos etc but am no clearer how it's done. My best guess is some sort of circlip is holding it in but I'm not really sure?

Help from those in the know please!