I am looking for help finding a manual for an older jet lathe, esp the speeds and feeds it has a quick change gear box . This is a late 70's lathe and my dad lost the manual for it. I want t keep him active on it, he is 83y/o and he wants to learn how to do more on it. His dad could do a lot on a lathe but would never show him how to do anything on it. I am a self taught hobby machinist. So wish me luck..