I would bet he has a air compressor, all he has to do is blow it off before use and periodically when loading. Remove the primer punch and make sure the punch will seat flush in it's holder and there is no debris under the shell plate. In between loading he can dip it in sawdust, well that is a bit extreme but you get the picture.
Once again though I cannot recommend Hornady's toll free line enough, people there will walk him through any and all problems. I have never been on hold more than a minute or two and their people are fantastic
Government is like a baby. An alimentary canal with a big appetite at one end and no sense of responsibility at the other. - Ronald Reagan