Overview of Bobbin Timing
Bobbin timing is an important factor in having a fully functioning sewing machine. The timing involves the hook and the rotating hook race, which is a round fixed object that holds the hook in place as the needle makes its sewing movements. Generally, timing issues are caused by the hook being misaligned, the hook coming loose from its place, or the hook and hook race grinding against each other and sometimes producing unpleasant noises. Incorrect timing can also lead to poor stitch quality, longer thread take-up, or even thread breakage. This article will show how to fix bobbin timing on a Brother sewing machine to ensure continued use of the machine.
Checking Bobbin Timing
Before attempting to fix bobbin timing on a Brother sewing machine, it is essential to check the timing. This can be done by looking at the hook and hook race. If they are misaligned, then the hook race may be turning slightly out of sync with the hook. This could lead to thread becoming tangled up and not being caught correctly in the hook. Additionally, it is vital to ensure that the hook and hook race aren’t coming loose from their positions, as this can cause issues with stitch quality.
Adjusting Bobbin Timing
Once it has been established that the bobbin timing is incorrect, it is time to adjust it. The first step is to locate the adjustment screw that is used to align the hook and hook race. This will usually be located on the front of the machine. With the machine unplugged, turn the screw until the hook and hook race are correctly aligned. This should be done very carefully, as improper alignment can lead to further damage.
Once the hook and hook race are aligned, the next step is to set the tension. This is done by adjusting the tension screw, which is located on the side of the machine. It is important to ensure that the tension is set correctly, as too much tension can cause the hook and hook race to grind against each other. Finally, it is essential to check that the hook and hook race are properly lubricated. Many modern Brother machines have self-lubricating parts, but this should still be checked routinely.
Checking Stitch Quality
Once the bobbin timing has been adjusted, it is important to check that the stitches are of high quality. This can be done by placing a piece of fabric under the needle and making a few test stitches. If the stitch is correct, then the bobbin timing has been adjusted correctly. If the stitch appears to be loopy or irregular, then it is likely the timing has not been adjusted properly and needs to be adjusted further.
Troubleshooting Poor Stitch Quality
It is possible that despite adjusting the bobbin timing, stich quality remains poor. If this is the case, then it is likely that there is another issue causing the problem. The first thing to check is the tension. It may be necessary to increase or decrease the tension to get the desired stitch quality. Additionally, ensure that the needle is correctly inserted and the presser foot is correctly aligned. If these checks have been done, then it’s time to check the needle. If the needle has been damaged or is blunt, then it may be necessary to replace it.
Regular Maintenance
Regular maintenance is essential in order to ensure that the bobbin timing is set correctly. This should involve regular checks of the hook and hook race, as well as the tension and needle. Additionally, it is important to ensure that the machine is correctly lubricated on a regular basis, as this will reduce the amount of wear and tear on the machine and its parts. Furthermore, the machine should be kept clean and dust-free to help reduce the risk of damage.
Diagnosis and Repair
If all the above checks have been made and the bobbin timing has still not been fixed, then it is time for a professional to take a look at the machine. A qualified technician should be able to diagnose and repair any issues, as well as replace any necessary parts.
Ending a Sewing Job Properly
Once the bobbin timing has been fixed, it is essential to end the job properly. This includes ensuring that the needle is properly dropped, the presser foot is lowered, and the machine is unplugged. It is also crucial to wind the bobbin thread onto the bobbin and secure it with a band. This will prevent the thread from becoming tangled and also allow for smoother stitching.
Storing a Sewing Machine Correctly
A sewing machine should be stored in a cool, dry place when not in use. It is important to keep the machine free of dust, as this can damage the parts. Additionally, the machine should be kept away from water and other liquids in order to prevent any water damage. Finally, before storing the machine, the bobbin timing should be checked and adjusted if necessary.
Troubleshooting Noises
If the machine is producing unusual noises, then it is likely that there is an issue with the bobbin timing. This can be checked by listening for any grinding noises coming from the hook and hook race. If any are detected, then it is likely that the timing is out and needs to be adjusted. Additionally, ensure that the hook and hook race aren’t coming loose from their place.
How to Find Replacement Parts
In the event that any parts of the machine need to be replaced, then the best option is to contact the manufacturer. They should be able to provide the necessary parts, as well as advice and guidance on how to fit them correctly. Additionally, some sewing machine websites may provide spare parts, as well as how-to guides on fitting them.
