PR680W / PR680WC FAQs & Troubleshooting PR680W / PR680WC Not your product? Sort by Updated Date Popularity 3 Results 1. 04/08/2022 How do I thread the machine? (Threading the upper thread) 2. 03/10/2022 How do I delete short stitches ? 3. 10/15/2021 How do I adjust the tension of the upper thread ? Getting Ready FAQs & Troubleshooting