My mum’s got an old electric Singer sewing machine which is about 40 odd years old. Singer sewing machines are well supported generally and parts are readily available, but I find it’s sometimes fun to try and find the cheapest way to fix something myself.
The foot pedal on this machine went pop and smelled horrible after. The machine then stopped working, oh dear.
The pedal is of high quality construction and easily better than any generic replacement on the market, so it was definately worth saving.
Opening up the pedal was just a few screws, which then exposed the whole mechanism. The mains resistor was in tact and seemed to test with resistance. A good start. The contacts were in good condition as was the rest of all the components, except for the mains input capacitor, which has spectactularly failed and split open, a common problem on older mains capacitors.
Repair kits are readily available for about £5, but that seemed expensive to me! Using the existing capacitor as a guide, I found a suitable component on eBay for £2.09 delivered. That’s more like it.
The capacitor I used was: Film Capacitor, 0.1 µF, 250 V, PET (Polyester), ± 5%, R60 Series (from eBay).
Here’s a little slide show that I hope will help others fix their pedal, should it fail.
With the old capacitor cut out and the new one soldered in, the pedal was ready to run again. Sorted.
Cost of a replacement: £15-30 for a generic part. Cost of repair, £2.09, 1 cup of tea.