Question about Singer White Speedylock 1634

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My white speedylock serger 1634 thread keeps getting in knots

Whenever I thread my serger, the stitches come out in knots and then the thread breaks. I have the correct tension, maybe could it be in the threading?

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  • Anonymous Apr 02, 2009

    I have this same problem, and I don't have a book either, nor can I find one. I have been looking for two years! My serger breaks the thread on the far right (the pink on my machine, a Speedylock 234DE). I have rethreaded over 50 times with the same results. I have tried putting one thread on the bottom, then the other, nothing works. It was fine the other day, I didn't use it for a few days, and then it was like this. I didn't even change the thread, I didn't touch it, I don't know why it's like this all of a sudden! I need my manual, I don't even know what the dials do (besides the individual tensions.)

  • Anonymous May 02, 2009

    I have rethreaded my machine following (painstakingly) the guide provided by vthe vmanufacturer and stillo have the #2 thread breaking and the overlock not completed. I have tried adjusting the tension to no avail. any suggestions? I have a White Speedylock 1634.

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I have the book and it says thread from inside out, inside looper (upper) then lower, then thread the needles, first right then left.  I have found that it does not matter if you thread the needles or loopers first but that you should try to thread from inside to out.  

Posted on Feb 25, 2009

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I've had this same problem. I finally fixed it by removing all the thread and slowly and painstakingly re-threaded the machine in the order shown in the instruction. The error occurred when the wrong thread was on top of the bottom looper.

Posted on Jun 23, 2008

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I have threaded and re-threaded until I am so done with this machine! I have followed the directions, but the directions are not in color, and all of the thread is shown in one diagram, and the thread is black. It is impossible to know which thread goes where, and the colored dots on the machine are good, but they are not on every little place the thread needs to go, nor does it give color order. Poor design!!!

Posted on Aug 20, 2010

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Start with the threading sequence. Upper looper, lower looper, left needle, right needle. Your upper & lower loopers must be threaded before your needles or it won't make the stitch. If it still doesn't work, it's out of time and will need to be taken in to a shop.

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Open the doors and watch what is happening when you turn the hand wheel.

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Once you get this great, but sometimes naughty little machine stitching as it should, do not let it run out of thread.

Cut the thread near the cones and tie off to the new thread.

Open the tensions and slowly run the machine until the new thread appears - you will have to stop as the knot gets to the needles and thread manually.

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