Wiring Diagram

Above is a typical wiring diagram for many older Singer sewing machines utilizing: Terminal Box #192797 and Double Lead #714179 (new design molded female plug).
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This diagram should be used as a point of reference, your particular set-up may be different. If your wiring is not similar or if you have any doubt in your ability to perform electrical maintenance, please, take your machine and all it's electrical components to your nearest certified sewing machine technician. You could put yourself in danger and/or further damage your motor and other electrical components.
ALWAYS when performing electrical maintenance UNPLUG the machine from wall outlet. When testing use an outlet with a GFIC (Ground-Fault Circuit-Interrupter) and/or surge protector.
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