XL-6040 FAQs & Troubleshooting XL-6040 Not your product? Sort by Updated Date Popularity 2 Results 1. 26/10/2007 Incorrect thread tension 2. 02/10/2007 The tension does not set on my sewing machine. More FAQs (English only) Sewing (Utility Stitches) FAQs & Troubleshooting