The process is similar for the front and back plates except that you will need a thin hardwood stick such as a sharpened cocktail stick, a toothpick or a sliver of spit bamboo, or better still, pegwood. (Pegwood sticks are available cheaply online.)

Examine the pivot holes carefully with a magnifying glass to ensure they are completely clean. It may take several attempts but is well worth the effort. Do not proceed with reassembly until you are certain they are 100% dry.