{"product_id":"kansai-special-41-1050-0-spring-post","title":"Kansai Special 41-1050-0 Spring Post","description":"\u003ch2\u003eKansai Special 41-1050-0 Spring Post\u003c\/h2\u003e\n\u003cp\u003eThe Kansai Special 41-1050-0 is listed as a spring post. It is a part of a thread tension unit. The same part number is used across many Kansai Special machine families, for example FX, DFB and NW\/NL.\u003c\/p\u003e\n\u003cp\u003eTension discs work together with the guides and the take-up. The guides lead the thread into the discs, the discs hold it back and the take-up manages the slack, so a worn unit upsets the pull on the thread at every stitch.\u003c\/p\u003e\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKansai Special part number: \u003cstrong\u003e41-1050-0\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart name: Spring Post\u003c\/li\u003e\n\u003cli\u003eShort form of the number: 41-105\u003c\/li\u003e\n\u003cli\u003eType: Springs\u003c\/li\u003e\n\u003cli\u003eKansai Special parts books that list this part: FX, DFB, NW\/NL and 21 more\u003c\/li\u003e\n\u003c\/ul\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\u003eThe adjusting nut or knob turns freely but the tension does not change\u003c\/li\u003e\n\u003cli\u003eThread breaks, or the stitch is uneven although the settings are correct\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWipe the discs clean before you thread the machine, since oil or lint on them gives an uneven hold. Start with a light setting and raise it in small steps until the seam looks balanced.\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. Compare the part with your old one or with your machine's parts list, because one number can serve several related models.\u003c\/p\u003e\n\u003ch3\u003eMore Kansai Special parts for the same machines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kansai-special-41-1170-0-thread-guide\"\u003eKansai Special 41-1170-0 Thread Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kansai-special-41-7020-0-spring-light\"\u003eKansai Special 41-7020-0 Spring (Light)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuestions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy will the tension not stay at the set value?\u003c\/strong\u003e\u003cbr\u003eA weak or rusted spring, grooved discs and a worn adjusting nut can each stop the unit from holding its setting. Clean the discs and check these parts before you change other settings.\u003c\/p\u003e\n\u003cp\u003eRelated: \u003ca href=\"\/collections\/kansai-special-springs\"\u003eSprings\u003c\/a\u003e | \u003ca href=\"\/collections\/kansai-special-spare-parts\"\u003eKansai Special spare parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"PRIZZI SEWING MACHINE CO.","offers":[{"title":"Default Title","offer_id":51105715814565,"sku":"KAN-41-105","price":0.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7593\/5397\/files\/kp_spring_v2.png?v=1793912248","url":"https:\/\/prizzisewing.com\/products\/kansai-special-41-1050-0-spring-post","provider":"PRIZZI SEWING MACHINE CO.","version":"1.0","type":"link"}