Question about Singer 1120 Mechanical Sewing Machine
Normally there are a bunch of metal parts that rub together to make the up/down motions from the spinning motor. These are located on the top (near the red thread in your photo). The whole top of the case has to be removed with a few screws. Use very little oil so it doesn't splash/spray onto your fabric. Just touch the oiling bottle to the metal and squeeze slightly until you see some gloss appear on the metal. Move the parts by hand to work the oil in.
The bobbin area also has to be oiled. Remove the metal frame that holds the bobbin. Oil the outside curve (away from the thread). Wipe off excess so you don't get your thread oily. Keep your hands clean so you don't smear oil on any thread or fabric. I like to wash before putting it back together.
It should should very smooth. Oiling the bobbin frame (I don't know the real name) makes the biggest difference in sound - it should be much quieter.
Posted on Nov 19, 2009
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Posted on Jan 02, 2017
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