First of all, many thanks to Dave Berghold and Johnbaz for helping with this watch so far. :thanks
I have reached the keyless-work. there are three screws holding the barrel bridge and a little one near the castle wheel.
The keyless work is in pretty good shape and functions well. I do, however want to clean everything.
I do not want to ruin it via incorrect dissambly. any precautions before I unscrew and lift the barrel bridge?? thanks very much in advance