Inspection & Preparation
Taking your sewing machine apart to access the bobbin threading process can often be a daunting task. Before you start, it is important to inspect your machine setup to make sure it is in proper working order. Make sure the presser foot is attached correctly, the upper thread is correctly tensioned and the thread is correctly nested in the bobbin case. Also make sure the thread is taut and is unwound correctly. Once all of this has been checked and your machine is ready to continue, you can start the rethreading process.
If you can get access to the underside of your sewing machine, there is usually a removable panel or cover to allow for bobbin access. This can be removed and set aside. Now locate the bobbin case and take it out, being careful not to lose any of the associated parts. Clean the bobbin case thoroughly and check for any bent, broken or worn out pieces.
Tensioning & Re-Tensioning
Once the bobbin case is inspected, it is time to re-tension the thread. This can be done by loosing the tiny screws on the bobbin case and slowly loosening or tightening the tension spring until the desired tension is achieved. This can take some practise, so take your time and be careful not to overtighten
Once the tension is set, you can start the rethreading process by placing the thread around the post or peg located on the bobbin case. Once this is done, wind the bobbin several times in a clockwise direction, making sure the thread is taught and not crossing over itself. Once this is done, re-insert the bobbin case into the machine.
Threading & Tensioning Upper Thread
Once the lower thread is wound, now it is time to thread the upper thread correctly. This can be done by threading the thread correctly trough the cutter, the presser bar and then into the spindle. Once all of this is in place, it is now time to adjust the upper thread tension. This can be done by turning the tension knob in a clockwise or anti-clockwise direction depending on the required tension.
Once the upper and lower thread tension has been correctly adjusted, check to make sure the thread is correctly nested in the bobbin case, this should result in the thread feeding correctly around the bobbin case.
Testing & Troubleshooting
Now that everything has been threaded correctly, it is time to check and test out your machine. Press the start button and make sure the machine is running smoothly and that there is no jerking or skipping of stitches. Also check the thread tension to make sure it is at the required level and that the thread is not bunching or skipping stitches.
If you do experience unusual behaviour or skipped stitches, it is likely that the tension is not correct or there may be an obstruction in the system. In this case, try re-adjusting the upper and lower thread tension, as well as cleaning and inspecting the presser foot, needle, bobbin and bobbin case, and the cutter bar.
Techniques & Using Multiple Threads
In addition to rethreading a single bobbin, there are a variety of techniques and methods that you can use to get the most out of your machine. For example, for a decorative effect, you can use two different colors of thread, or multiple colors of thread, in the same stitch. You can also try using two different types of thread, such as bobbin thread and upper thread. Another method is to use an embroidery bobbin and an embroidery needle to create intricate designs.
However, it is important to note that these techniques should only be used after correctly threading the machine and adjusting the appropriate tension settings. If the tension settings are too low, the machine will not be able to hold the fabric in place and can result in skipped stitches.
Tips & Tricks
One of the best tips when rethreading a sewing machine is to label each and every one of the threads once rethreaded. This helps to identify which threads are in use and where they go should you need to rethread or inspect the machine again. Additionally, when rethreading it is important to hold the threads correctly and make sure they are not twisted or overlapping themselves.
It is also important to rethread the machine correctly and make sure the tension settings are correct. Too much thread tension can damage the fabric, while too little thread tension can result in uneven stitches. Additionally, it is important to use the correct kind of needle for the job, as different fabrics might require different types of needles.
Maintenance & Cleaning
Finally, it is important to keep your machine clean and in good condition. It is advised to service your machine regularly, to keep it running smoothly and increase its life span. Additionally, it is important to keep the presser feet and needle clean, as build up of fabric debris and lint can cause the machine to malfunction.
It is also recommended to dust or blow off the machine after each use, as this helps to keep it free of dust, fabric debris, lint, and other build up that can reduce the machine’s efficiency. It is also important to remember to use the correct kind of oil, and only oil the machine where instructed.
Education & Troubleshooting Resources
If you are experiencing any problems or difficulties in rethreading your machine, there are a variety of resources available online that can provide valuable information on troubleshooting and repairing sewing machines. Additionally, there are many online video tutorials that demonstrate the rethreading process, as well as other useful tips and tricks.
It is also important to note that many manufacturers offer helpful customer service and technical resources that can help provide valuable information on repairing the machine, rethreading, and maintenance. Finally, many local fabric stores and sewing machine specialists provide in-person help and can provide advice and guidance on rethreading and troubleshooting.
