Identifying and Fixing Bobbin Winding Issues

Bobbin winding issues can be frustrating, but they are usually easy to identify and fix. Problems with bobbin winding can lead to uneven stitching, thread jams, and other sewing issues. Here’s how to troubleshoot and fix common bobbin winding problems:

1. Bobbin Not Winding Evenly

• Problem: The thread on the bobbin is winding unevenly, resulting in bunches or loose loops on one side.
• Causes:
• Misalignment of the bobbin on the winder.
• Incorrect threading of the bobbin winding path.
• Fix:

1.            Rewind the Bobbin: Remove the bobbin and start the winding process again, making sure the thread is threaded correctly through the guides.

2.            Check Bobbin Position: Ensure the bobbin is placed correctly on the winder spindle. It should be seated flat and not wobbling.

3.            Adjust Tension: If your machine has a bobbin winding tension disc, ensure the thread is properly placed through it. This disc helps guide the thread evenly onto the bobbin.

2. Bobbin Not Winding at All

• Problem: The bobbin does not spin, and no thread is winding onto it.
• Causes:
• The bobbin winder is not engaged.
• The thread path is incorrect or there is a blockage.
• The winder stopper is not functioning properly.
• Fix:

1.            Engage the Bobbin Winder: Make sure the bobbin winder spindle is pushed to the correct position (usually to the right) to engage the winding mechanism.

2.            Check Thread Path: Re-thread the machine for bobbin winding, ensuring that the thread follows the correct path. Look for any tangles or blockages.

3.            Inspect the Winder Stopper: If the winder stopper is out of place or broken, it may not allow the winder to engage. Adjust or repair it as necessary.

3. Bobbin Overfilling

• Problem: The bobbin continues to wind after it is full, causing the thread to spill over.
• Causes:
• The bobbin winder stopper is malfunctioning.
• The machine’s bobbin winder settings are incorrect.
• Fix:

1.            Adjust the Winder Stopper: Check if the bobbin winder stopper is set correctly. It should move and stop the winding process automatically when the bobbin is full.

2.            Manual Stop: If the stopper is not working, you can manually stop the machine when the bobbin is full by disengaging the winder or lifting your foot off the pedal.

3.            Check Bobbin Size: Ensure you are using the correct size bobbin for your machine. An incorrect bobbin size can cause the winder to malfunction.

4. Bobbin Winding Too Loosely

• Problem: The thread on the bobbin is wound too loosely, which can lead to uneven stitches and thread bunching.
• Causes:
• Insufficient tension in the bobbin winding thread path.
• Fix:

1.            Increase Tension: Ensure the thread is correctly guided through the tension disc or spring designed for bobbin winding. If the tension is too loose, the thread won’t wind tightly.

2.            Rewind the Bobbin: If the bobbin is already wound loosely, remove the thread and start the winding process again with proper tension.

5. Bobbin Winding Too Tightly

• Problem: The thread is wound too tightly on the bobbin, which can cause the thread to stretch or break during sewing.
• Causes:
• Excessive tension in the bobbin winding thread path.
• Fix:

1.            Reduce Tension: Ensure the thread is not too tightly wound through the tension disc. You may need to re-thread the machine for winding with a slightly looser tension.

2.            Avoid Overfilling: Stop winding before the bobbin is completely full to prevent the thread from being wound too tightly.

6. Noisy or Jerky Bobbin Winding

• Problem: The bobbin winder is noisy, or the bobbin winds unevenly in a jerky motion.
• Causes:
• Dirt or debris in the bobbin winder mechanism.
• A worn or damaged bobbin winder belt (on some machines).
• Fix:

1.            Clean the Winder Mechanism: Use a small brush to remove any lint or debris from the bobbin winder mechanism.

2.            Check the Bobbin Winder Belt: If your machine has a belt that drives the bobbin winder, inspect it for wear or damage. Replace it if necessary.

3.            Lubricate if Necessary: Some machines may require lubrication in the bobbin winder area. Check your manual and use appropriate sewing machine oil.

7. Bobbin Winder Does Not Stop Automatically

• Problem: The bobbin winder continues to spin even when the bobbin is full.
• Causes:
• The bobbin winder stopper is not aligned or is faulty.
• Fix:

1.            Check Alignment: Ensure that the stopper is correctly positioned to stop the winding when the bobbin is full.

2.            Manual Stop: If the automatic stop isn’t working, you’ll need to stop the machine manually once the bobbin is full.

General Tips:

• Use the Correct Bobbin: Always use the bobbin recommended for your sewing machine model. Using the wrong size or type can lead to winding issues.
• Regular Maintenance: Keep the bobbin winder area clean and free of dust and lint. Regular maintenance can prevent many common problems.
• Check Your Machine Manual: Your sewing machine’s manual will have specific instructions for winding bobbins correctly. If you’re experiencing persistent issues, consult the manual for troubleshooting tips specific to your machine.

By identifying and addressing these common bobbin winding issues, you can keep your sewing machine running smoothly and avoid disruptions to your projects.