{"product_id":"juki-40079022-thread-trimmer-hook-assembly-for-lu-1510na-7","title":"JUKI 40079022 Thread Trimmer Hook Assembly for LU-1510NA-7","description":"\u003ch2\u003eJUKI 40079022 Thread Trimmer Hook Assembly for LU-1510NA-7\u003c\/h2\u003e\n\u003cp\u003eJUKI spare part 40079022: a standard hook for the JUKI LU-1510NA-7 (with inner hook presser). This is the rotary hook (hook assembly) under the bed that catches the needle thread loop and passes it around the bobbin case.\u003c\/p\u003e\n\u003cp\u003eThe hook works together with the needle, the bobbin case and the bobbin to form the lockstitch. Its point must be sharp and correctly timed to the needle, and its race must be smooth so that the thread runs freely.\u003c\/p\u003e\n\u003ch3\u003eDetails\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJUKI part number: \u003cstrong\u003e40079022\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eVersion: standard\u003c\/li\u003e\n\u003cli\u003eDLC-coated version: \u003ca href=\"\/products\/juki-40166745-dlc-thread-trimmer-hook-assembly-for-lu-1510na-7\"\u003eJUKI 40166745 DLC Thread Trimmer Hook Assembly for LU-1510NA-7\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFits these JUKI machines\u003c\/h3\u003e\n\u003cp\u003eJUKI's parts catalog lists part 40079022 for: LU-1510NA-7 (with inner hook presser).\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\u003eSkipped stitches or loose loops on the underside\u003c\/li\u003e\n\u003cli\u003eThe needle thread frays or breaks near the hook\u003c\/li\u003e\n\u003cli\u003eA rough or chipped hook point or race\u003c\/li\u003e\n\u003cli\u003eNoise or heat from the hook area\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 a hook, check the timing of hook and needle, the needle-to-hook clearance and the bobbin case position as described in the JUKI Engineer's Manual for your model, and oil the hook as your machine's manual instructs. Switch the machine off and unplug it before you start, and turn the handwheel by hand through a full stitch before the first run.\u003c\/p\u003e\n\u003ch3\u003eChoosing the right part\u003c\/h3\u003e\n\u003cp\u003eHooks differ by machine model, hook size and trimmer type, so hooks that look alike are not interchangeable.\u003c\/p\u003e\n\u003ch3\u003eQuestions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a new bobbin case with a new hook?\u003c\/strong\u003e\u003cbr\u003eNot necessarily, but a worn bobbin case can still cause tension problems with a new hook. Replace both if the bobbin case shows wear.\u003c\/p\u003e","brand":"PRIZZI SEWING MACHINE CO.","offers":[{"title":"Default Title","offer_id":50684970270885,"sku":"JUK-40079022","price":408.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/7593\/5397\/files\/hook_v2.png?v=1792259085","url":"https:\/\/prizzisewing.com\/products\/juki-40079022-thread-trimmer-hook-assembly-for-lu-1510na-7","provider":"PRIZZI SEWING MACHINE CO.","version":"1.0","type":"link"}