First off you can find the proper manual here....it is determined by serial number....
I'm second owner of a family owned from new since in the 60s, have had it myself for more years than I like to admit lol. Are they the greatest, not by today's standards no, do they work, for most crops yes. Canola with original screens is a prob, but there are ways to get it done with out too big of mess. Reason there is a prob is holes are too big for canola. They were built for corn actually and cereals was a good secondary use. Their beginning production predates large scale rapeseed production, thus the large holes in the earlier machines.
PTO drive is either 540 or 1000. Using a tractor to run them did allow for running the auxiliary augers for loading and unloading with hydraulics. The machine itself requires two separate 120 volt power supplies if it has the electric top leveling auger(some did run on 220 for the auger), one runs the controls, the other that auger. They suck liquid propane unless yours is natural gas. They are a continuous machine, once things are going and filled, wet grain goes in the top, dry out the back, however at initial fill, the grain in the lower section must be put back thru as only the top section dries with heat, the bottom section is cooling only.
Those temp sensors on the sides control the feed impeller ratchets. The ratchets are adjustable for how fast and how much they stroke, thus affecting volume that goes thru in a given time. Once set, it still requires hourly at min checks on how actual moisture is, fluctuations are common as it is not a high tech system, so often you end up over drying some so it all balances out in the end.
When you are done all of whatever you been drying, you shut down the auto feed until it has run long enough to dry the grain in the top section, then turn off the heat and let it cool as you begin unloading.
They need to blocked well in at least four places front to back under the skids, wheels off the ground, they are only for transport, and must also be level side to side and front to back. Doesn't need to be anchored, least I never have mine. Tractor is parked in line with pto and the hitch is again only used for transport.
Not sure what else to say for now, down load your book and read thru it, any questions, ask, couple others on here like me with several years and a shitload of bushels experience. Just keep asking nicely and respectfully like you already have, that goes a long way to guys willing to help out.
Not sure you say where you are from, maybe let us know, might be someone not too far from you with one, like what I mean, is to spend an hour having things explained while actually looking at the machine is a lot better than just on here.