Trevlaw
Sketchy Machinist
Nope, no reference pictures, manuals or diagrams, none that I could ever find anyways. Rivett was a competitor to hardinge and didn't last as long before going under, but this is their 918 turret lathe, similar to a hardinge DV59. I did get it back together though, had to make a few new parts, but I finally got it back together and it actuates correctly. Think I only had one leftover piece lolGood luck with that jigsaw puzzle! Do you at least know the model of the lathe so that you can find some reference pictures on the internet? You're a brave soul there.
So I took your advice and browsed around and found a decent Crest US Cleaner for a reasonable price and will be picking it up over the holidays; guy said he used it a few times to clean some vintage radio parts. I asked if he had ever run it with out it being full, and he said never, it says in big letters not to operate unless full to the fill line. So, hopefully its in good working order.
So I saw where a guy was using glass jars with whatever solution in those and just weighting the tops to hold it in the basket and then was just using straight water in the US cleaner; that way he doesn't have to keep cleaning the cleaner and cycling through various solutions. I'm sure the glass absorbs some sound waves or changes the frequency though so not sure how much it may change the efficiency of the machine. Worth a try though.
I think you'll be happy with the purchase, my under is crest is one of the best. How big of a tank is it? Mine is long, skinny and deep, a more square tank would be nice. Should be some videos online of the foil test, basically fill it with water and run it with a piece of tinfoil in it. Should beat up the foil pretty good and maybe poke holes in it if functioning correctly.
The glass jar trick works great too, I do it all the time and it seems just as effective and it really helps not use so much cleaner.