ArchaicArcane

Not all of them. There are some machines with sensors for low thread in the bobbin case, etc. My cousin swears that canned air is why her Janome had to be repaired. It threw off the thread cutter.

Oil is typically one drop wherever metal rubs on metal. Not 4 drops because they were small, and if there are -any- electronics around where you're oiling be extrememly careful. Oil and electronics do not get along, which is why I don't think I'd encourage anyone to do their electronic machines themselves, only the "manual" ones.

As the link that cmrenno posted mentions: a sewing machine repair person sees your machine "naked". If you fully diassemble, it's a lot different from blowing air into the bobbin area and around the needlebar. I use an air compressor (some of the same risks - moisture, etc) but that's because I've fully disassembled the machine to do it.

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That's exactly what a Kenmore / Janome machine I had on my bench last week looked like. There was stuff so packed in it looked like someone had knitted a scarf for the gears. No wonder it had "issues".

patwomey

I was told to never use compressed air because it can blow everything back into the deeper parts of your machine. I use vac and tweezers.

patwomey

I use my shark vac and tweezers to clean out ...no compressed air

eb in calif

Harbor freight has a set of vacuum crevice tools for the$8 that go on end of you vacuum hose also great for keyboard and other small spots