Starrett No. 120A Dial Calipers: Disassembly, Cleaning and Reassembly

This is a pretty simple do-it-yourself project to help tune up these calipers - cleaning the gunk out of them when they get dirty. I also discuss how to reset the dial so that it is pointing straight up - when these get dirty, sometimes the gear will jump a tooth on the rack and the dial will not zero out with it pointing up.