Thanks Judy, Nancy,
I thought I remembered that it wasn't critical, but I didn't remember the recommendations for care. I'll be better prepared to service it next time I open it. A campground with nothing but a box of pins, a screw driver and a scrap of toilet paper may not have been the optimum cleaning opportunity. However, I was between projects, had the time, the lube and the oil.
An old t-shirt, tooth brush and machine lint brush are the tools I use for the vintage ladies. I wondered if my life would be easier if I used a gun cleaning kit. The circular brush on a longer handle sounds like a friend to my knuckles. Pros & cons?