CV3440 FAQs & Troubleshooting CV3440 Not your product? Sort by Updated Date Popularity 7 Results 1. 15/05/2018 Stitches are skipped. 2. 22/02/2018 Fabrics cannot be pulled out after sewing 3. 22/02/2018 Needles break 4. 05/02/2018 Threads break 5. 05/02/2018 Fabric does not feed. 6. 01/02/2018 The fabric becomes wavy after sewing 7. 01/02/2018 Stitches on back side are not made. More FAQs (English only) Sewing (Cover stitch machine) FAQs & Troubleshooting