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Tension control check spring


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Railroading, flatlining, broken top threads, and other things as well. Replace it. Zeke.

You also might want to check and see if its too close to the machine housing. It may be just hung up on that. You'll need a small Allen wrench for that. I think it's a 5/32" wrench.

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Zeke

I replaced the top tension check spring. It was quick and easy to do. I was having a few unexplained top thread breaks or snaps even though the tension looked great. I buffed for burrs, cleaned, checked the needle and hopping foot height, the timing and replaced the pigtails. I then replaced the thread, bobbin, bobbin case, needle and applied Sewers Aid, but still had the occasional break.  Since replacing the worn tension check spring, all is good again. I just finished a quilt with no thread breakage.

Excellent signs to watch for if you think the tension check spring is spent.

Thank you.

Leslie

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