Question: I do not know how to adjust the tension of the bobbin on a singer symphony 300 the thread loops underneath

This was helpful (7) | Asked for Singer 9137 Harmonie 300 Sewing Machine
odile 04-11-2022
I've had this symphony since 87 I think I do an interview from time to time with singer I just did it recently and it does him good it works better and it's not very expensive especially since I don't use it a lot may be that your machine needs them they do a check and adjustments good evening

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