[jerryhawthorne]

Well, looks like there are 3 bearings involved in the mechanism. Two supporting the variable cap itself, one on each end and one holding the knob shaft. I do believe this is going to be a fun project and will require complete removal and teardown . Yes, it will take a considerable amount of time. It seems all three bearings will need to be cleaned. Here is a link to work being done on the same chassis and should prove helpful. All parts now rotate but require extreme effort.
Regards, Jerry

http://www3.telus.net/radiomuseum/projec...index.html