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Try and new needle or sounds like your tension may need adjusting. I keep my tension at number 4, seems to work fine. The bobbin tension may be too tight also.
Not quite sure what you are asking. The upper tension is governed by the tension disk. Higher number is tighter, lower number is looser. Usually, the mid-range is a good place to start. Tension is correct when upper and bobbin threads meet in the middle of the fabric.
NOTE--ALWAYS RAISE the presser foot when threading so the thread will seat in the tension disk!
Needle tension is governed by the tension dial on the front of the machine. The higher the number the tighter the tension. For basic stitching, it is generally a good policy to start out with the tension set at the midway point between high & low numbers and then tweak it for your particular machine.
Usually, the standard tension for upper thread is midway between high & low numbers. However, every machine differs and may need to be tweaked. Unfortunately, finding the correct tension is generally a test and adjust method. Be sure you are using a brand new needle and good quality thread.
It helps a lot to use 4 different colors so it is easier to tell which thread tension needs adjustment.
Sergers have tension dials for every thread. Start out with the dials set at the midway point between high & low numbers (this is the factory standard, however, the settings can change with machine use and wear). Be sure to RAISE the presser foot while thread every thread--this allows the tension disks to open. It also helps to grab the thread with one hand below the thread tree and, with the other hand, grab the thread below the tension disk and give it a little tug to insure the thread is seated all the way in the tension disk. Check to make sure every thread is threaded in the proper order (consult the owner's manual) and that every thread follows the correct path.
Test. Tweak the thread tensions. Higher number usually tightens a loose tension, lower number loosens. The correct tension is when the looper threads meet at the very edge of the fabric without causing fabric pucker; needle threads should be smooth with no loops or pulliing.
Factory standard tension for upper thread is the midway point between the high and low number. However, that tension dial is meant to be used for tweaking tension. Generally, tweaking is required whenever the type of fabric, needle, or thread are changed, ie thicker fabric like denim should have a different upper tension setting than fine chiffon. To be successful with tension settings, one must become comfortable adjusting the upper tension.
NOTE: Accurate tension is achieved when the upper thread and bobbin thread meet in the middle of the fabric.
. Understanding Bobbin Tension
Most manufacturer tension default settings is the midpoint between the high and low number on the tension dial. Usually the higher the number, the tighter the tension...
I'm sorry, but you will have to be more specific. There is a top and bottom tension. The top tension is adjusted using a dial of some kind, visible on your machine. It has numbers on it; generally the lower the number, the tighter the tension. The bobbin tension generally does not need adjusting, although it can be adjusted. Please write again to let me know what it is doing that leads you to believe the tension needs adjusting.
The higher number is more tension, lower number-less tension. There are two ways to apply elastis. One technique is to apply it to the wrong side, fold it over and top stitch. The other is to apply it within a wrapped binding. Zig zag will work fine but try to avoid excessive needle punches as this does weaken the elastic and tempts breakage.
Try these following steps:1. Look to see whether the thread loopsappear on the fabric back side. If this is the case, the tension on your sewingmachine is too loose.2. Check to see if your fabric ispuckering on the front side when you sew. If this happens, then your tension istoo tight.3. Adjust your needle thread tensionwith your machine threaded and your presser foot pedal down.4. Turn your thread tension dial asneeded. If you increase the number on your tension thread dial, you will beincreasing the tension on your sewing machine. If you are lowering the numberon your tension thread dial, you will be decreasing the tension on yourmachine.5. Clean your thread tension with asmall piece of paper or a toothpick. Slide the toothpick or paper between thediscs to remove any tangles of thread.Hope this will help you. Good Luck.
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