[Jukebox-list] nomenclature for Seeburg ds100 mechanism switch

Hi all, My cousin has a Seeburg DS100. He asked for my help identifying a broken part on the mechanism. He said it's a contact switch with a roller on the bottom right hand side of the mech. Apparently the switch is activated when it rolls up the ramp on the right hand side. The roller on that switch has broken off. I'm assuming that switch is replaceable but I have no idea what it is called. I do not have that particular part manual to look it up. I would really appreciate it if anyone is able to provide me with the name or part number of that switch.

Thank you, Bruce