Generally speaking - I never use lube on pinballs - except stepper unit shafts on EMs.

I don't believe that there was any lube originally - from factory.

with the ball kick assy - Just clean the shaft with nifti and scotchbrite pad, and the hole with a rag draped over a small screwdriver.

There's nothing wrong with lube, I just don't use it..

I was hesitant, but metal on metal?  In the manual it states the ball shooter lane feeder (which I think it was) needs lubrication oil and has a Williams part no.  Its only a small amount so hopefully should be OK.  It also states to do the slingshot arms as well?  I will inspect once I get to cleaning them.

Bit more progress as to furniture cleaning....Some metal parts been soaked in Nifty, then some 600grit wet and dry with windex.  No buff as yet.