We're using a food grade lubricant on it. After we slice (Italian beef, ham, turkey, ribeyes...) we use a hot water & detergent, then sanitize, and follow up with a good application of the lube. When we finish, everything moves freely as is should, but next day it's a major PITA to get the adjustment to do it's thing.
We have a Hobart service center than covers our little burg. I think I burned my bridge with them when they came responding to my phone call (voice mail), and took a previous unit back with them to their service center for a "free estimate" then basically held it hostage for $432. After a few phone calls I got my slicer back, in pieces, in a box, and the pleasure of giving them a $216 check so I think we're going to say that door is closed.
I've downloaded service manuals for our particular model to verify we're doing what we're supposed to in cleaning, but obviously something is still not working for me.
D.G. Sullivan's, "we're a little bit Irish, and a whole lot of fun"!