Replacing the Wires on a Singer Button Foot (motor) Control
I have been asked many times to provide directions for re-wiring stuff, and I have been very hesitant to do so. This particular procedure doesn't require any soldering, crimping of connectors, etc..., so it's a little bit more difficult to screw up. However, if you do screw it up, that's on you. When it comes to any electrical repairs, if you don't know what you are doing, well then, don't do it.
Alright- so your Singer button controller news new cords? The slide shows below illustrate how to replace the wires and prep the new plug to fit correctly on your machine. Please be aware that the rubber plugs that attach to the machine on the new sets tend to be tight. To make using them easier and to prevent accidentally cracking the terminal on the back of your machine, it's best to prep the plug and NEVER twist or tilt the plug when removing it from the machine. Always pull it STRAIGHT back.
Tweaking the female terminal block on the end of the new cord set so that it fits more easily, simply involves "stretching" out the brass contact tubes inside the block. Not only tapping something into the holes (as shown below) but also applying some lateral pressure (whacking the tapped in item to the side) will help open these up a bit and insure a proper fit. Sometimes these new cord sets fit perfectly on a given machine without any adjustments, but due the variance in the OD of the prongs on different machines, it's also common for "tweaking" to be required.
(Move your cursor over the photo to reveal the controls for the slide show- you can stop, advance and reverse the photos.)
You can buy the cord sets and new rubber feet for your controller from the Sew-Classic Parts Store.