{"product_id":"juki-40010509-thread-tension-shaft","title":"JUKI 40010509 Thread Tension Shaft","description":"\u003ch2\u003eJUKI 40010509 Thread Tension Shaft\u003c\/h2\u003e\n\u003cp\u003eJUKI spare part 40010509: Thread Tension Shaft. This is a part of a thread tension unit. JUKI includes it in its parts kit for the JUKI AMS-210, AMS-221 and AMS-224.\u003c\/p\u003e\n\u003cp\u003eThe tension unit presses the thread between discs with an adjustable force. The force decides how tightly the thread is drawn into the seam, and with it the stitch quality. Parts of the unit wear with the constant passing of thread.\u003c\/p\u003e\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJUKI part number: \u003cstrong\u003e40010509\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart name: Thread Tension Shaft\u003c\/li\u003e\n\u003cli\u003eType: Thread Tension\u003c\/li\u003e\n\u003cli\u003eQuantity in the JUKI kit \u003ca href=\"\/products\/spare-parts-kit?variant=45911281434789\"\u003e40181177\u003c\/a\u003e (AMS-210, AMS-221 and AMS-224): 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFits these JUKI machines\u003c\/h3\u003e\n\u003cp\u003eJUKI's parts kit sheets list part 40010509 for: JUKI AMS-210, AMS-221 and AMS-224.\u003c\/p\u003e\n\u003cp\u003eThe machine names are written the way JUKI writes them.\u003c\/p\u003e\n\u003ch3\u003eWhen to replace it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe thread tension cannot be set or does not stay set\u003c\/li\u003e\n\u003cli\u003eThread breaks, or the stitch is uneven although the settings are correct\u003c\/li\u003e\n\u003cli\u003eGrooves in the discs or a weak, bent or rusted part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSkipped stitches and thread breaks have many causes. Before you replace a part, check that the needle is new, the right size and system and fully inserted, and check the threading and the tension.\u003c\/p\u003e\n\u003cp\u003eAfter installing, thread the machine and test the tension on a scrap of the fabric you sew.\u003c\/p\u003e\n\u003ch3\u003eChoosing the right part\u003c\/h3\u003e\n\u003cp\u003eTension units and their parts differ by machine and thread type.\u003c\/p\u003e\n\u003ch3\u003eIncluded in these JUKI kits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/spare-parts-kit?variant=45911281434789\"\u003eSpare Parts Kit - JUKI AMS-210\/221\/224 (ENH*)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRIZZI SEWING MACHINE CO.","offers":[{"title":"Default Title","offer_id":50685071098021,"sku":"JUK-40010509","price":32.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7593\/5397\/files\/tension_v2.png?v=1792259086","url":"https:\/\/prizzisewing.com\/products\/juki-40010509-thread-tension-shaft","provider":"PRIZZI SEWING MACHINE CO.","version":"1.0","type":"link"}