Question about Simplicity Performer S110 Mechanical Sewing Machine

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Tension problems I'm an experienced sewer but this is a new machine, and it seems that no matter what material, thread, needle I use the tension # needs to be set at 8-9. It's just frustrating to me because the book says that most projects are sewn between 3-5 and I remember it was set at that (about 4) when I first started using it. It is a Singer. I have tried adjusting the bobbin etc. It sews fine at 8 , it just bothers me, and was wondering if there is something else I should check.

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Re: Tension problems

Hi bobbin....Because this machine is still unfamiliar to you, be certain that your upper thread is indeed completely threaded into and between the upper tension discs. Typically, raising the Presser Foot disengages applied tension upon the tension discs. It's quite possible that the lever which disengages your upper tension discs has slipped, and is no longer allowing the thread to freely position itself properly between discs. You may also firmly grasp the thread just before the discs, and firmly pulling with your other hand, thereby ensuring that the thread is completely within the discs. If those initial steps have not remedied your situation, examine your bobbin case, and ensure that the flat metal spring has not "cracked", paying particular attention the end where the thread exits the bobbin case under the spring. If the spring appears whole to you, using a screwdriver, in a counter-clockwise direction, turn the set-screw which fastens the spring to your bobbin case 1/5 rotation, and rethread. Set your upper tension to 4, and test sew using a straight stitch with medium stitch length. The knot after each stitch should appear to be in the center of your fabric. If the knot is still well below the center, loosen the bobbin case spring set screw by another 1/5 turn and repeat your test. If you must, you can repeat the process ONE more time, but no more. Remember, the set screw that secures the spring is very short, with little room for error. ****I recommend that you place a towel directly under the bobbin case prior to turning the screw, which will catch the screw and or spring for easy retrieval should you unintentionally dislodge them.....good luck my friend

Posted on Aug 02, 2007

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you can try adjusting bobbin thread tension but as I stated bunching underneath is normally needle thread tension
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when you say 'bobbin thread bunches' i take it that when you look at the underside of what you have sewn it looks messy. if this is the case and the machine is threaded correctly and the the needle thread is tight enough to bend the needle a little when pulled (with presser foot down) it will most likely be that you need to increase needle tension (maybe to max) when sewing thick fabrics with thicker than normal thread.

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