{"product_id":"upper-looper-127260-001","title":"Upper Looper #127260-001 for Brother 524, 524NL and Husqvarna Viking 440","description":"\u003cp\u003e127260-001 is the upper looper for the Brother 524 serger and its 524N and 524NL versions. The same looper is listed for the Husqvarna Viking 440.\u003c\/p\u003e\u003cp\u003eThe upper looper swings over the top of the fabric, carrying its thread across to meet the lower looper thread at the cut edge. If its point is burred, or the looper has been knocked out of line by a needle strike, that thread shreds or the loop is missed and the edge stitch skips on top. Swapping in an undamaged looper, then checking its clearance to the needles, puts the top half of the overlock stitch back in order. The order contains one upper looper.\u003c\/p\u003e\u003ch2\u003eCompatible machines (4)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eBrother:\u003c\/strong\u003e 524, 524N, 524NL\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHusqvarna Viking:\u003c\/strong\u003e 440\u003c\/p\u003e\u003cp\u003eKeep the lower looper in place while you change this one, and note the upper looper's height and timing first so you can match them when fitting.\u003c\/p\u003e","brand":"Sewlume","offers":[{"title":"Default Title","offer_id":68195990470744,"sku":"127260-001","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/4092\/8600\/files\/upper-looper-127260-001-1.jpg?v=1794542940","url":"https:\/\/sewlume.com\/products\/upper-looper-127260-001","provider":"Sewlume","version":"1.0","type":"link"}