PR670E / PR670EC FAQs & Troubleshooting PR670E / PR670EC Not your product? Sort by Updated Date Popularity 3 Results 1. 04/12/2018 How do I wind the bobbin? 2. 31/07/2017 How do I install a bobbin into the machine? 3. 22/08/2016 How do I attach Iron-On Stabilizer (Backing) to Fabric ? Getting Ready FAQs & Troubleshooting