[Jukebox-list] installing Wurly stepper

[etreble7]

Hello,
this question is regarding hooking up the wallbox for the Wurly 2410 to the stepper.  The terminal strip is numbered 1 2 and 3.  It does not say what each terminal is for.  I know one of the 3 must be a ground and a positive and a negative?  There is Schematic Wiring Diagram but none of the symbols look like the ground (earth) symbol.  I can see that #3 terminal goes to a 3amp  - #2 goes to a round solid circle and the #1 terminal goes to a round solid circle and continues on to .01 MFD

I know there are some of you that must be scratching your heads and grinning at the same time.  I know it's sad but believe me when I say, I have poured over this piece of paper and don't want to hook it up wrong.  I appreciate any and all help!
Jackie