Why is my Bernina 930 Record is squealing?
My Bernina 930 Record is squealing in the upper head of the machine. I have oiled everything that the manual indicates, but these areas are not where the squealing is coming from. It's appears to be around the gear area. I was wondering if it is some sort of plastic gear, or belt and how to fix it.
Sewing Machines - Bernina
Answers & Comments
The Bernina Record 930 has two belts (for upper and lower cogs). You can buy the belts at some sewing machine parts supply shops. One source is https://www.sewingpartsonline.com/bernina-930-sewing-machine-parts.aspx . Manuals Lib has the service manual for the Bernina 930 here: https://www.manualslib.com/manual/1353778/Bernina-930.html . Page 58 shows how to adjust the tension on these belts, https://www.manualslib.com/manual/1353778/Bernina-930.html?page=58#manual . See pages 2-4 to remove the covers to access the machine internal parts. Wait at least 30 seconds after unplugging the machine before removing the panels to allow the capacitors to discharge.
I hope this helps.
Cindy Wells