AIRFLOW 3000 FAQs & Troubleshooting AIRFLOW 3000 Not your product? Sort by Updated Date Popularity 5 Results 1. 13/06/2024 Differential feed adjustment 2. 02/11/2022 Thread tension adjustment 3. 02/11/2022 Adjusting the presser foot pressure 4. 02/11/2022 Locking and unlocking the upper knife. 5. 28/10/2022 To secure chains Sewing (Overlock machine) FAQs & Troubleshooting