gibsons guitar

How can you have a selection of Gibson Guitar?
I took the chains off and I'm looking to take the bridge pick up, but when I connect by his son, who disappears into the body of the guitar. How I can remove this selection? And once you remove and put back?
If you do not know how I can recommend you keep it and take a guitar shop. The last time I tried to take parts of my guitar broke.
Gibson Robot Guitar