Sorry if this is a numpty question but we all have to start somewhere! I have just got a 2nd hand 4 jaw chuck for my MD65. At present the lathe has it's original 3 jaw fitted by what appears to be 3 bolts/spring washers on the rear. New item is bolted through the main body in 4 places to a backplate. Backplate then has 3 tapped holes at 120 degrees .
Question...do I just undo the 3 bolts and fit the 4 jaw with the same fixings ?or is it not just as simple as that? Many thanks