JA1450NT FAQs & Troubleshooting JA1450NT Not your product? Sort by Updated Date Popularity 3 Results 1. 03/04/2023 How do I draw up the lower thread by hand? (For models equipped with a quick-set bobbin.) 2. 21/01/2016 How do I wind the bobbin? 3. 17/11/2015 How do I install the bobbin wound with thread? (For models equipped with a quick-set bobbin) Getting Ready FAQs & Troubleshooting