[TheForge] Buzz Box Blues

[Peter Hirst]

I have a Lincoln buzz box that has served me well and faithfully for over 30 years, but has developed one mechanical problem. The  amperage selector dial is suddenly really sticky.  I have to crank it so hard to move it that it is almost impossible to stop it on the correct stop. I assume its rust in the stops, but am not sure how to get at it or what to lube it with, if anything. Is there a way to free the thing up without opening it up? Anything else I need to know before venturing into the buzz box? Besides unplugging it???!!!! 
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