PX-100/200/300 FAQs & Troubleshooting PX-100/200/300 Not your product? Sort by Updated Date Popularity 3 Results 1. 01/17/2011 How do I pick up the lower bobbin thread? 2. 03/04/2009 How do I wind the bobbin? 3. 02/25/2009 Lower bobbin threading Getting Ready FAQs & Troubleshooting