u/HiVis250Rider

The AI feeler on this DP12 finder does not seem to be able to extend all the way to the right, may also be stuck in a slightly "tucked away" position (also see the little red window on top being half closed), does anyone have experience with this? Or does anyone have a good guide to taking this part of the DP12 apart? I have found the repair manual but there is a lot of springs to deal with here