{"product_id":"kansai-special-05-3760-0-leaf-spring-upper","title":"Kansai Special 05-3760-0 Leaf Spring (Upper)","description":"\u003ch2\u003eKansai Special 05-3760-0 Leaf Spring (Upper)\u003c\/h2\u003e\n\u003cp\u003eKansai Special spare part 05-3760-0: Leaf Spring (Upper). This is an elastic metal part that stores force when it is bent, stretched or compressed and gives it back. This part appears in the Kansai Special parts books for FX.\u003c\/p\u003e\n\u003cp\u003eThe force of a spring depends on its wire or strip, its length and its shape. A spring that is weaker or stronger than the right one changes the pressure or tension wherever it acts, and adjusting cannot fully make up for it.\u003c\/p\u003e\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKansai Special part number: \u003cstrong\u003e05-3760-0\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart name: Leaf Spring (Upper)\u003c\/li\u003e\n\u003cli\u003eShort form of the number: 05-376\u003c\/li\u003e\n\u003cli\u003eType: Springs\u003c\/li\u003e\n\u003cli\u003eKansai Special parts books that list this part: FX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing the right part\u003c\/h3\u003e\n\u003cp\u003eOn a flat or leaf spring, the curve and the bend positions count as much as the length, so check the shape against the old spring. 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\u003eWhen to replace it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe relaxed spring is shorter or flatter than a new one\u003c\/li\u003e\n\u003cli\u003eA setting no longer holds or the movement feels weak\u003c\/li\u003e\n\u003cli\u003eEnds that are bent open, worn through or no longer seating properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTurn the handwheel by hand after fitting and check that the spring does not rub the frame, a cover or a neighboring part.\u003c\/p\u003e\n\u003ch3\u003eMore Kansai Special parts for the same machines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/kansai-special-87-1000-0-bolt\"\u003eKansai Special 87-1000-0 Bolt\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/kansai-special-19-4160-0-needle-guard\"\u003eKansai Special 19-4160-0 Needle Guard\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/kansai-special-05-4290-0-upper-knife\"\u003eKansai Special 05-4290-0 Upper Knife\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/es\/products\/kansai-special-02-4940-0-rear-puller\"\u003eKansai Special 02-4940-0 Rear Puller\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMore in this group: \u003ca href=\"\/es\/collections\/kansai-special-springs\"\u003eKansai Special springs\u003c\/a\u003e. Everything from this maker: \u003ca href=\"\/es\/collections\/kansai-special-spare-parts\"\u003eall Kansai Special spare parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"PRIZZI SEWING MACHINE CO.","offers":[{"title":"Default Title","offer_id":51105711292581,"sku":"KAN-05-3760-0","price":6.0,"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\/es\/products\/kansai-special-05-3760-0-leaf-spring-upper","provider":"PRIZZI SEWING MACHINE CO.","version":"1.0","type":"link"}