: Verify that your power supply matches the ratings on the motor nameplate (e.g., single vs. 3-phase) before switching it on. Standard Threading Guide
If you have a vintage cast-iron Golden Wheel, download the Singer 15-91 manual. The threading paths and bobbin winding mechanisms are identical. The only difference is the cosmetic badge. golden wheel sewing machine manual
: Troubleshooting skipped stitches or uneven thread tension. Component Maintenance : Verify that your power supply matches the