I have a very old Hobart mixer model 20001 Type SA pat date Jan 24 1905 all I can make out on Ser. is EA It works. It as oil ports what oil is used?and would anyone know were I can get a service manual. I also have a model A200 mixer that works I'm looking for info on lube for it as well I like to clean and lubit be for selling it.I welcome any info I can getThanks Rob.
Is it similar to one of these? https://www.manualslib.com/brand/hobart/mixer.html My old sewing machine had one manual for 3 different models, maybe it's the same with your old mixer?
Food grade mineral oil is what you want to lube stand mixers.
Also, it'd be easier with pictures but is this the model you're looking for?