I just put the folding tables on my new supermax 19-38 this evening. They just bolt into the two holes on the front and back of the lower frame. There weren't any instructions on how to assemble and level to the table, just a picture of the parts and a parts list. I am very slow working and I probably spent an hour and a half from start to finish. I like them so far. I have very limited space in my shop so every little bit helps when reducing the foot print of a machine. Small shop also means wheels on everything and I bought the casters that Supermax sells and they are nice and makes moving the sander around so easy. I can tell I am going to get a lot of use out of this machine.