3034D FAQs & Troubleshooting 3034D Not your product? Sort by Updated Date Popularity 5 Results 1. 08/08/2017 Differential feed adjustment 2. 01/24/2014 Retracting knife 3. 01/24/2014 Free-arm sewing (removing bed extension) 4. 04/20/2011 Adjusting the presser foot pressure 5. 03/05/2009 To secure chain Sewing (Overlock machine) FAQs & Troubleshooting