First, select the stitch pattern you want to use. There are 24 discs available for the Slant-o-Matic and early Touch & Sew machines. They are numbered 0-23, with 0 being standard zigzag and 23 being basting stitch.
Next, open the lid on the top of your machine:
Check to see if there is already a disc in the machine:
500 disc compartment WITH disc
500 disc compartment WITHOUT disc
Singer 401 stitch selector knob.
If there is already a disc in the machine, you will need to remove it before inserting the disc of your choice.
To remove or insert a disc you may need to adjust the knob or lever settings on your machine.
If you have a 401, 411, 500, or 600 model, make sure the stitch selector is NOT on "Special."
Singer 600 stitch selector levers
Singer 500 stitch selector knob
403 stitch width lever
If your machine is a 403, 503, or 603 model, set the stitch width lever to "S" or "STR".
Grasp the raised center portion of the disc firmly and pull straight up. There's no special trick to this. As my dad always says, "Pull hard and it'll come easy."
Now you're ready to insert your chosen disc. Line up the holes in the disc with the two posts in the disc compartment.
Press disc firmly into place. There should be a slight click when it's fully seated.
Let's look at it in motion:
Next, readjust knobs & levers for Special Disc sewing.
For 401, 411, and 500 machines, set large center knob at "B" on the left and "Special" on the right. For 600 machines, set the upper stitch selector lever at "Special" and the lower stitch selector lever at "B". Then set stitch width lever to desired width.
For 403, 403, and 503 machines, set stitch width lever to desired width.
Finally, adjust the stitch length lever to desired density. Special Disc patterns typically look best when sewn at the shortest stitch length possible.
That's it! You're ready to sew. It's really that easy.
Happy Sewing! Barbara OldSewinGear...dedicated to helping you get the most out of your old sewing gear.
OldSewinGear is the collaborative effort of retired repairman Gary and daughter Barbara. We love old sewing gear and enjoy sharing what we've learned in our vintage sewing machine adventures. We are located in Roseburg, Oregon.