A great tutorial on cleaning sewing machines! This is especially for the old, grimy gear driven models, but info is useful for all non-computerized machines.
Restoring a vintage sewing machine
How to clean up a vintage sewing machine
Vintage Singer 99k Sewing Machine: Cleaning, Restoring, and Troubleshooting
The Vintage Singer Sewing Machine Blog: How to Restore Your Stitch Length Indicator Plate
Identify your old vintage singer sewing machine - our handmade home
In this course, learn how to select, refurbish, clean, and use a vintage Singer sewing machine. Get tips on where to buy a vintage machine, how to evaluate its quality, and the tools you need to complete a DIY restoration!
Resources for fixing and cleaning old sewing machines - like my 1956 Singer 99k, much loved and still kicking!
How to gently restore the cabinet of an antique Singer treadle sewing machine.