DS-140 FAQs & Troubleshooting DS-140 Not your product? Sort by Updated Date Popularity 4 Results 1. 12.12.2018 It is difficult to pass the thread through the needle bar thread guide(hook). 2. 12.12.2018 Upper threading (Point) 3. 07.05.2015 How do I thread my machine? (For models equipped with the needle threader) 4. 07.04.2009 Place a spool of thread on a spool pin. Getting Ready FAQs & Troubleshooting