Singer 401A Slant-o-matic pedal service and adjustment

Servicing the contacts in a Singer 401A Slant-o-matic foot pedal from the 1950's. The machine had almost no variable speed control before service. Should be similar procedure for other Singer pedals from near the same generation.

Видео Singer 401A Slant-o-matic pedal service and adjustment канала Technical Mercenary