Reinstalling the Internal Locking System

You will notice that the frame is countersunk on the inside where the ILS is located. Place the frame on its side and place the ILS Bearing item #55 in the countersunk hole. Next place the ILS Spring and Stop items #56 & #57 in the counterbored hole just above the bearing. Now, push in on the ILS Stop, insert the ILS such that it clears the stop.