Quote Originally Posted by DaveG
It can be done without splitting them thought the bulb and adjuster holes. It's fairly fiddly but can be done. I've done about 5 sets this way.

Edit. Just seen that your wanting to clean the inside of the lens. Sorry my post no help to you then only for someone wanting to change adjusters.
That's impressive Dave. I spent ages trying to get them out without splitting them. Dunno how you did it.