User Manual
Page 59
...bobbin case is damaged. 4. Check and attach correctly. 1. Wrong needle size for the needle. 4. Thread tension wrong. 1. Readjust the stitch length. 3. Fabric has been pulled. 1. Poor quality oil has been used . 4. The needle is threaded wrong. 3. Replace the needle. GB Troubleshooting Guide Problem... is not correctly threaded. 3. Rethread the machine. 2. Loosen lower thread tension as described. 2. Insert a new needle. 2. The bobbin case is caught in the hook. The thread tension is not threaded correctly. 2. Do not pull on the hook or needle bar....
...bobbin case is damaged. 4. Check and attach correctly. 1. Wrong needle size for the needle. 4. Thread tension wrong. 1. Readjust the stitch length. 3. Fabric has been pulled. 1. Poor quality oil has been used . 4. The needle is threaded wrong. 3. Replace the needle. GB Troubleshooting Guide Problem... is not correctly threaded. 3. Rethread the machine. 2. Loosen lower thread tension as described. 2. Insert a new needle. 2. The bobbin case is caught in the hook. The thread tension is not threaded correctly. 2. Do not pull on the hook or needle bar....