Help Reassembling Bobbin Case

1. Start by turning off your sewing machine and unplugging it for safety.

2. Remove the needle from the needle clamp. This will prevent any accidental damage to the needle during the reassembly process.

3. Open the bobbin door or slide off the needle plate to gain access to the bobbin area.

4. Take out the bobbin case by releasing the latch or removing the retaining screw, depending on the type of bobbin case used in your machine.

5. Ensure that the bobbin case is clean and free from any lint or thread debris. You can use a small brush or a lint roller to clean it thoroughly.

6. Now, with the bobbin case in your hand, locate the small lever on the side. This lever helps control the thread tension. Check if it moves freely and is not stuck.

7. Place the bobbin case back into the bobbin area, ensuring that it is properly aligned. The hook or finger on the bobbin case should fit into the notch or groove in the machine.

8. Secure the bobbin case in place by latching it or tightening the retaining screw, depending on the type of bobbin case used.

9. Gently rotate the handwheel towards you, ensuring that the needle passes correctly above the bobbin case without hitting any metal parts. If you hear or feel any resistance or if the needle is hitting the metal, stop immediately.

10. If everything appears to be aligned correctly, you can reinsert the needle into the needle clamp and tighten it securely.

11. Finally, close the bobbin door or replace the needle plate, securing them in place. Once you've completed these steps, you can plug in your sewing machine and power it on to test the bobbin case.

If you're still experiencing issues with the needle hitting metal, I would recommend consulting the user manual or contacting and schedule a visit to a professional technician who specializes in sewing machine repairs. They will be able to examine your machine more thoroughly and offer guidance specific to your situation.

The needle is not inserted correctly. Make sure that the needle is fully inserted into the needle clamp and that the needle clamp screw is tight.

The needle is bent or damaged. If the needle is bent or damaged, it will need to be replaced.

The bobbin case is not inserted correctly. Make sure that the bobbin case is fully inserted into the bobbin case holder and that the bobbin case latch is locked.

The bobbin case is damaged. If the bobbin case is damaged, it will need to be replaced.

The timing of the sewing machine is off. If the timing of the sewing machine is off, it can cause the needle to hit metal.

To troubleshoot the problem, you can try the following:

Check the needle to make sure that it is inserted correctly and that it is not bent or damaged.

Check the bobbin case to make sure that it is inserted correctly and that it is not damaged.

If you are still having problems, you may need to have the sewing machine timed by a qualified technician.

Here are some additional troubleshooting tips:

Make sure that the presser foot is raised before inserting or removing the needle.

Make sure that the presser foot is lowered before starting to sew.

Use the correct needle size and type for the fabric you are sewing.

Sew slowly and carefully, especially when turning corners.

If you are not comfortable troubleshooting the sewing machine yourself, you should contact a qualified repair technician.