TENSION DISC: It comprises of two concave discs put together that controls the tension of upper thread. By turning it to the right or left, the tension of upper thread is can be tightened or loosened. The spring in the tension disc regulates the pressure.
What should your tension be on a sewing machine?
The dial settings run from 0 to 9, so 4.5 is generally the ‘default’ position for normal straight-stitch sewing. This should be suitable for most fabrics. If you are doing a zig-zag stitch, or another stitch that has width, then you may find that the bobbin thread is pulled through to the top.
Why is my bottom thread loose?
– The bobbin thread could be wound incorrectly. – Check the bobbin was inserted properly. – Make sure that you are using a bobbin designed for this machine. – Make sure that the bobbin was threaded properly in the shuttle race.
Why is the tension wrong on my sewing machine?
Needles, threads, and fabrics: Different thread sizes and types on top and in the bobbin can throw off basic tension settings. A needle that’s too large or small for the thread can also unbalance your stitches, because the size of the hole adds to or reduces the total top tension.
How often should you clean and lubricate a sewing machine?
The rule of thumb is to lubricate the machine after every three to four bobbin changes. Or clean and lubricate the hook area after each day of sewing.
Why is my thread bunching underneath?
Your Thread Tension Is Too Tight
Sewing machine manufacturers suggest that you don’t mess with your bobbin thread tension too much, but you should adjust your upper thread tension if you keep getting bunched up thread underneath your fabric. If your tension is too tight, it can pull your thread and break it.
Why is my sewing machine making loops underneath?
Looped stitches are usually caused by improper tension. If the loop is on the upper side, it may be corrected by loosening the top tension or by tightening the lower tension. If the loop is on the under side, it is usually best corrected by adjusting the upper tension.
What tension should I use for cotton?
Cotton requires a moderate tension setting, usually between three and four. Always start adjusting your tension settings with your upper tension.
How do I know if my bobbin tension is correct?
The thread should unwind just slightly and the bobbin case should drop an inch or two. If the thread unwinds without resistance and the case slips to the floor, your bobbin tension is too loose. If the bobbin case doesn’t budge, your bobbin tension is too tight.
What tension should I use for thin fabric?
If you’re sewing light or thin fabric such as lawn, cotton voile, then turn the dial to a lower tension setting such as 2 or 3. The stitch length should be between 1.5 – 2.4mm.
