Why Does My Sewing Machine Keep Unthreading

We’ve all been there – a sewing machine improperly threaded, burrs and bobbin tangled, fabric bunched and jammed – while attempting to make fashionable clothes, homemade gifts and quilts. But why does it keep unthreading? It is possible that the machine may be malfunctioning, however there are a few check-points worth considering that can drastically reduce the chance of unthreading and other hassles.

Firstly, ensuring the instrument is always well oiled is key, because it is primarily a mechanical device. Lubrication of the machine’s various parts prevents excess friction, which is the main cause of unthreading, snarled bobbins, and other malfunctions.

Additionally, the type of thread used is essential. If the wrong thread is selected for the fabric – like using a coarse thread for lightweight material – then it may cause jamming and eventually, unthreading. It’s important to ensure the thread spool is in the correct position as well by reference to the machine’s guidebook.

Moreover, the needles must be firmly secured, as any imperfection or technical malfunction may result in disrupted threading. Ensuring the needles are fresh and of the correct size and type for the fabric being used will reduce the risk of needle breakage, thread bunching up and unthreading.

More importantly, when threading the machine, it’s vital to follow the manual’s instructions to the letter – including the step-by-step drawings – to thread the bobbin correctly, keep track of the various thread paths and make sure the thread is not kinked or twisted. Even misplacing the thread in the wrong layer in the upper threading path may lead to unthreading and damage the needle.

Not only does it help to have a checklist and take time to thread properly, but it is also very important to use quality thread. Low-grade thread will certainly fray and break quickly, causing snarled bobbins, thread nests and unthreading. Quality filaments are likely to thread faster and last longer.

Replacing the Twist and Buckles

When a sewing machine frequently experiences unthreading, it could be a sign of something a little more serious. One of the most common causes of unthreading is an excessively loose or worn out twist and buckle. If the twist and buckle is in bad condition, it will be unable to grip the thread securely and it may become unthreaded after only a few stitches. In this case, it is necessary to replace the twist and buckle in order to keep the machine running properly.

Additionally, frequent unthreading can reveal an underlying issue with the machine’s design or machinery. Some machines may be designed with plastic parts that are especially prone to wearing down due to the constant contact with thread. In other cases, there may be a mechanical issue with the way the twist and buckle is mounted on the machine, or the bobbin thread tension may be improperly adjusted. If these problems occur frequently and all other potential causes have been ruled out, it is likely the machine is malfunctioning in some way and needs to be serviced or replaced.

Proper Maintenance Techniques

Essential to keeping a sewing machine running smoothly is regular threading, proper maintenance and cleaning. It’s important to keep the needle plate and thread path clear of lint and dust, as this could lead to snagging or unthreading. Furthermore, it’s important to periodically inspect the needles, the thread path and other components to ensure they are in proper working condition. Careful consideration should be given towards the type of needles being used; investing in quality needles is a necessary choice.

It is equally important to keep the machine well-oiled to reduce friction, as mentioned above. Additionally, regularly lubricating the bobbin area will help prevent lint and fabric particles from clogging the mechanism and making it difficult to thread. Taking preventative measures and ensuring the machine is always adequately serviced will drastically reduce the risk of unthreading.

Skilled Repair Services

Finally, if a sewing machine is experiencing unthreading issues regularly, the best choice is to call a professional. Whether it’s a damaged machine, a dysfunctional design, incorrect threading or a combination of many issues, a skilled sewing machine repair service can quickly diagnose and repair the issue. Professionals generally have the experience, expertise and resources to provide complete and accurate repairs, plus they can also provide useful advice on how to identify and prevent common problems.

Troubleshooting Techniques

If unthreading continues to be a persistent problem, it is highly advisable to take a closer look at the machine. Learning how to troubleshoot a sewing machine will help identify and diagnose small issues before they become big ones. This involves taking the time to inspect each component of the machine and familiarising oneself with the sewing machine’s specific guidebook. Additionally, research and speaking to expert sewers can provide useful insights, tips and advice.

Using the Right Tools

Using the proper kit is crucial in avoiding – or eliminating – the cause of unthreading. Investing in a screwdriver suitable for the machine will make taking it apart easier and less risky. Additionally, an appropriate thread chart, tools to clean the machine, spare needle plates and other accessories should suffice. Generally speaking, an experienced sewer will most likely already have some of the necessary tools in their collection, so it’s worthwhile doing some research beforehand.

Following the Instructional Manual

Lastly, it is essential to pay close attention to the manufacturer’s guidebook. Reading, following and understanding the instructional manual – including diagrams, instruction videos and troubleshooting sections – should be the first step taken when encountering any problems. With a comprehensive understanding all the components and a careful attitude towards threading, it is ultimately possible to eliminate costly, time-consuming repairs.

Geoffrey Kirby is an experienced author and sewist who has been creating sewn projects for over 20 years. He has a passion for teaching beginners and inspiring more advanced sewists both online and through his writings. Outside of writing about sewing, Geoffrey loves to explore new techniques and styles of sewing that incorporate upcycling fabric remnants into sweet items with personality.

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