GQ3700 FAQs & Troubleshooting GQ3700 Not your product? Sort by Updated Date Popularity 3 Results 1. 11/17/2015 How do I install the bobbin wound with thread? (For models equipped with a quick-set bobbin) 2. 07/27/2012 How do I draw up the lower thread by hand? (For models equipped with a quick-set bobbin.) 3. 07/27/2012 How do I wind the bobbin? Getting Ready FAQs & Troubleshooting