Is this the start/stop or the reversing switch?
I have a 9x30 LatheMaster and It looks like many of these ROC lathes have the same set up.
If it is the Start/stop/E-stop switch, mine uses a really chinzy way of implementing the stop, the retaining relay is built into the switch and the stop button actually pushes the relay armature off instead of unlatching it electrically!!
I converted to a standard relay start/stop set up.
I don't think the original would pass any kind of code inspection.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.