Checking the Machine
One of the most common causes of bobbin problems in a Brother Sewing Machine is incorrect setup. Before troubleshooting the bobbin, it’s important to make sure that everything else is working properly. The bobbin should be properly threaded onto the spool, the spool should be properly attached to the machine and the spool should be wound properly. If any of these steps are incorrect, it’s likely that the bobbin will not be functioning properly.
Following the Manufacturer’s Instructions
Once you’ve checked that the machine is setup properly, the next step is to follow the manufacturer’s instructions. Different Brother Sewing Machines have different instructions, so it’s important to refer to the manual that came with your particular machine. Generally speaking, however, there are a few steps you should take.
First, make sure that the bobbin case is properly threaded. You should also check that the thread tension is at its proper setting. Finally, you should make sure the bobbin is properly inserted into the bobbin case.
Cleaning the Bobbin Case
If the bobbin case is dirty, it can cause problems with the bobbin’s threading. Frequent use of a sewing machine can cause lint and dust to accumulate inside the bobbin case, which can interfere with the bobbin’s operation. A simple solution is to use a brush to clean away any lint or debris. In addition, some Brother Sewing Machines have a cleaning function which can help keep the bobbin case clean.
Replacing Parts
If cleaning the bobbin case doesn’t resolve the issue, it’s possible that some components need to be replaced. Many Brother Sewing Machines use a carbon and fiberglass composite for the bobbin case, and this material can wear out over time. If you’re finding that the bobbin is not winding properly, it may be time to replace the bobbin case or the bobbin itself.
Troubleshooting Wound Bobbins
Sometimes the bobbin can become wound too tightly or too loosely. This can cause problems with the threading and tension and cause the machine to jam. The best way to fix a wound bobbin is to remove and replace it in the machine. If that doesn’t resolve the issue, then it’s possible that the machine may need to be taken apart and the bobbin tension adjusted.
Long Term Maintenance
To prevent problems with the bobbin in the future, it’s important to keep the machine clean and in proper working order. Regularly check the thread tension and make sure the machine is lubricated as indicated in the user manual. In addition, it’s a good idea to clean out the bobbin case every few months.
Working with Metallic Thread
Working with metallic thread can be tricky, as it tends to be thicker and heavier than regular thread. This can cause issues such as the bobbin thread being too loose, or the metallic thread shredding too easily. To fix this, it’s important to use the right needle and the right tension setting. Additionally, some machines are better suited to working with metallic thread, so it may be worthwhile to invest in a model specifically designed for this purpose.
Adjusting the Feed Dog Height
The feed dog height is an important setting when it comes to working with fabric thickness and different types of thread. If the feed dog height is too low, the machine will be more difficult to sew with as the fabric will not move freely. On the other hand, if the feed dog height is too high, the fabric will bunch up as it moves through the machine. To fix this, it’s important to adjust the feed dog height to the thickness of the fabric or thread you’re using.
Solving Tension Discrepancies
Sometimes the bobbin may be winding at a different tension than the top thread. This can cause the thread to bunch up or the stitches to be loose. If this happens, it’s important to adjust the thread tension knob until the tension of the two threads is the same. Additionally, make sure that the bobbin tension spring is properly adjusted as per the instructions in the user manual.
Troubleshooting Bobbin Alignment
If the bobbin is aligned incorrectly, the machine won’t sew properly. To check the alignment, remove the bobbin case and then look at the holes on the side. The feed dog should be aligned with the drive wheel and the two should match in size. If they do not match, then it’s important to adjust the bobbin alignment and tension until the two are aligned properly.
Using a Magnetic Bobbin Case
The magnetic bobbin case is designed to help keep the bobbin in the correct position and prevent the bobbin from jamming. To use this feature, simply hold the bobbin case close to the machine’s spinning wheel and then press the bobbin case against it. The magnetic force will pull the bobbin case into the correct position and help to reduce the chance of the bobbin jamming.
Checking the Hook
The hook is an important component in the machine and needs to be in proper working order for it to sew properly. If the hook is not working properly, it’s likely that the bobbin thread won’t be drawn up evenly and the stitches will be uneven. To check the hook, manually turn the wheel of the machine and watch the hook as it rotates. If it is wobbling or not moving in a uniform circle, then it’s time to replace it.
Using Quality Thread
Using quality thread helps reduce the chance of many sewing machine problems, including problems with the bobbin. Many Brother Sewing Machines come with specific thread recommendations and it’s important to use this thread in order to ensure the best results. Quality thread will ensure that the bobbin winds properly and that the stitches are tight and strong.
