UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

paulsherwin · 7th Aug 2020, 3:05 pm

Yes, the image is correct. There are 3 connections - neutral, which is common, live, which goes to the lamp, and rheostat, which goes to the motor.

Don't bother about the colour coding, which may have been changed anyway. Just use a meter or continuity checker to confirm which wire or plug pin is which.

There is no way to earth the system with this arrangement. You may want to use the machine through a plug in RCD and/or connect an improvised earth to the metalwork. If you don't earth it you may feel a very faint tingle.

Remember to change the suppression caps in the pedal if that hasn't been done already.

7th Aug 2020, 3:05 pm	#2
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 28,012	Re: Rewiring a singer sewing machine Yes, the image is correct. There are 3 connections - neutral, which is common, live, which goes to the lamp, and rheostat, which goes to the motor. Don't bother about the colour coding, which may have been changed anyway. Just use a meter or continuity checker to confirm which wire or plug pin is which. There is no way to earth the system with this arrangement. You may want to use the machine through a plug in RCD and/or connect an improvised earth to the metalwork. If you don't earth it you may feel a very faint tingle. Remember to change the suppression caps in the pedal if that hasn't been done already.