Originally Posted by annthreecats
You may have to put the levers on specific letters (if you have letters). On my 401A, I would have to use the special stitch letters to use a cam other than the ones in the machine. Does you machine top lift up so you can see the cams, there may be instructions on the inside of the lid for this.
HTH
I do not have letters, I can only insert the cam and control the stitch width, length and needle position. I have a manual, but it is not very clear. I guess I will have to continue to play with it.