попробуйте https://sewrem.ru/stati/shvejnaya-mashinka-ne-zahvatyivaet-nizhnyuyu-nit-pochemu/#:~:text=%D0%A1%D0%B0%D0%BC%D0%BE%D0%B9%20%D1%80%D0%B0%D1%81%D0%BF%D1%80%D0%BE%D1%81%D1%82%D1%80%D0%B0%D0%BD%D0%B5%D0%BD%D0%BD%D0%BE%D0%B9%20%D0%BF%D1%80%D0%B8%D1%87%D0%B8%D0%BD%D0%BE%D0%B9%20%D1%82%D0%BE%D0%B3%D0%BE%2C%20%D1%87%D1%82%D0%BE,%D0%9D%D0%B0%D1%80%D1%83%D1%88%D0%B8%D0%BB%D0%B8%D1%81%D1%8C%20%D0%BD%D0%B0%D1%81%D1%82%D1%80%D0%BE%D0%B9%D0%BA%D0%B8%20%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D1%8B%20%D1%87%D0%B5%D0%BB%D0%BD%D0%BE%D1%87%D0%BD%D0%BE%D0%B3%D0%BE%20%D0%B1%D0%BB%D0%BE%D0%BA%D0%B0.