Hello...On my Singer 15-91 I slide my bobbin on the winder (fits and stays on there great) then I make sure the little pin is engaged in the side of the bobbin and push down my winder to lock it in, but when I start to wind, my little bobbin pin has a hard time staying in the side of my bobbin and it keeps slipping out. I have adjusted the bobbin wheel and tried a metal and plastic bobbin in the right size. Do these little pins get worn down? Can they be replaced, if so does an online store carry them?
Thanks so much!!!
