1999 Komori Lithrone 528 5/c w aq coater

Hello friends , I'm new to the group. but old to the business. I am hoping someone can help me with a technique to set inside forms (B&C) to the steels but I can't locate the locking nut or eccetric adustments, visually of them.. the sideframes are a disaster with dried up ink etc. ( I'm just getting on this machine so theres alot of work to do). I have a roller diagram as well as the steps to change out the rollers. but for now I just need to know how to change out rollers b and c . any pics or illustrations or ideas are appreciated.
thanks -10