Looking for info on a Delta "toolmaker" surface grinder

I just bought a older delta surface grinder. It all seems to be there, I am looking for any information you might have. Oiling and bearing adjustments would be nice, but any information would be great. It looked like a light bench model in the dark, but once in the back of my truck it became much heaver. This sucker must be 700 pounds, and a bit of mass above the belt buckle too, no joy getting it out and onto solid ground with all the wet weather here.