How repeatedly should I grease my sewing contraption?
Answers: Depends on the machine -- check the booklet and follow the recommendations. Some of the modern machines use sintered bearing -- self-oiling -- and at most you need a drop of grease on a bobbin case contained by those.
Be sure to use sewing machine grease, not 3-in-1 (it gums up over time and will freeze the machine) or WD-40 (it's a solvent, not a lubricant). A $3 bottle of real sewing apparatus oil will finishing you for years in most cases.
I furnish my machines a light cleaning at the wrap up of each project (vacuuming up lint, any needed oiling) and a full cleaning once a month (today's the day), but I do a just amount of sewing, often beside some pretty lint-making fabrics.
Suggested reading: Carol Ahles' Fine Machine Sewing, the chapter on needles, thread and machine precision, and Gale Grigg Hazen's Owners Guide to Sewing Machines, Sergers and Knitting Machines. The first you're likely to find at a library (it's Taunton's best selling sewing book, iirc), the second may enjoy to be interlibrary loaned.
You oil by the heat around you.If you live in humid nouns,often.I oil mine every 3 months.They use to recommend annually.Be sure to read you book to find the oil joint...
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