Your top thread travels all around the inside of that hole as you sew. Just as your hook assembly can suffer from broken needles or “near misses”, so can the needle plate hole. Then use fine, 400-grit emery cloth (found in the hardware or automotive store) to smooth out the rough spot. If you find one, rotate the assembly by turning the fly wheel by hand until the burr faces the floor.
#SWF EMBROIDERY MACHINE THREAD BREAKS MANUAL#
Use the appendix in your User Manual (located on the companion CD that accompanied your machine) titled “Hook Maintenance” to help locate the common areas for burrs, or click here to view the document.
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Since the top thread travels completely around the hook to form the stitch, it will find those burrs and break. Just hitting a bulky seam can deflect the needle enough to strike the hook as it rotates, putting a scratch or burr on the metal. You don’t have to break a needle to develop a burr on the hook. Burrs on the hook assemblyīurrs on the hook assembly are caused by needle strikes. Loosen the bobbin tension (don’t be afraid to loosen it considerably–even if it makes you uncomfortable) and test your stitches until you get a balanced stitch with no thread breakage. If you are trying to use cotton thread in the top with that pre-wound bobbin, the bobbin’s strength may cause the top thread to snap. For example, most pre-wound bobbins are made from polyester thread. However, the bobbin thread content as well as the tension setting can cause the top thread to break. If the top thread breaks, it doesn’t seem logical that you would consider the bobbin tension as a possible reason. NOTE: You may need to loosen the bobbin tension at the same time so that the bobbin thread doesn’t pull the top thread to the back of the quilt. Continue to adjust until the stitches appear normal again. If the machine sews with no tension on the thread, start turning the tension knob tighter (clockwise) while testing your stitches.
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Remove all the top thread pressure to eliminate tension as the problem and “start over”. Try loosening the top tension knob a LOT, even if it means that your tension disks don’t touch each other. If your top thread is already at its peak stress level as it passes through the tension assembly, it is bound to break. To increase your thread’s shelf life, store it in a closed container away from direct light, where sunlight and UV rays can not accelerate the damage. However, the best solution may be to start with a fresh spool. You may be able to sew with it by “re-hydrating” it with mists of water or by treating it with a thread lubricant called “Sewer’s Aid” (liquid silicone), available in the notionsdepartment at many sewing centers. It loses its moisture content over time and becomes weak and brittle. Yes, thread can have a shelf life (especially natural fiber thread). if the thread doesn’t break, then there was something wrong with your first cone. To eliminate the thread as the culprit, put a new cone of thread on the machine. The thread’s composition can cause the breakage cotton, rayon, some trilobal polyester and other weaker fiber threads tend to break or fray more frequently. Bad threadĮven if you have completed 1-2 quilts or more with this thread, you can have a bad spot in the cone of thread! Dark thread tends to break more easily than light.
#SWF EMBROIDERY MACHINE THREAD BREAKS FREE#
(We don’t recommend titanium-coated needles.) Call our toll free number at 800.426.7233 to order. APQS carries the correct type of needle for your machine in each of these sizes. Try a new needle if you have trouble with thread breakage and are using the correct size for your project. For very thin thread, you may switch to an MR 3.5 (size 16), and you can increase the size to an MR 4.5 (20) for heavy, thick thread. This needle has a large eye and can withstand the flexing that happens when you move the machine (over-flexing can cause directional tension changes.) If you use a needle that does not have a large enough eye for the thread thickness or type, the eye will fray or slice the thread. Incorrect or damaged needleĪPQS times each machine to an MR 4.0 industrial needle (equivalent to a size 18). Click here for information on threading your machine. Re-thread the machine by completely removing the thread from the machine, and then starting over with the cone and first thread guide. Don’t worry, we’ll help you figure it out! Here are different causes for thread breakage, along with solutions: Improper threadingĭouble check the thread path and ensure the thread isn’t catching on the spool, laser cord, or other obstruction. Successful thread use requires being willing to make adjustments to the tension, both on the top as well as to the bobbin. APQS machines can sew with nearly every type of thread, from 100-weight silk to 12-weight heavy cotton.
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Few things can be more frustrating than thread that constantly breaks.