Just replaced my uppper looper on my white 1634....
I am not sure where it is supposed to rest, the thread coming throught the upper looper is not being picked up when i try to serge. The only thing happening is the needles sew straight lines. HELP! is the upper looper supposed to come up in front of the needles or behind them? perhaps something else is going wrong. I have re-threaded my machine to assure it is correct.
Re: just replaced my uppper looper on my white 1634....
The upper looper goes just in front of the needles. I had issues with my machine when I got some fabric jammed and the looper moved so it wasn't catching the left needle and it was sewing a straight stitch on the left. The looper needs to be placed in front of the needles and very close to the needles without hitting them.
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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.
Then it's one of two things. First try setting your lower looper tension on 3 and see if that works. If not set it back on 4 and cut ALL your threads and re-thread the machine STARTING with the UPPER looper, then the lower looper, then the right needle, last the left needle if you're sewing a 4 thread overlock stitch. Make sure the threads aren't twisted in the thread guide. Make sure the lower looper thread is OVER the elbow on the upper looper and over the upper looper thread. Let me know if this works. We'll work until we get it fixed!
No. You would want to disengage your upper KNIFE not upper looper to do this but you need a serger with the COVER STITCH feature to do this. You can get the same effect using a twin needle on your sewing machine. Hope this helps!
I believe it is color coded right?
start with the Upper looper follow from the upper looper throught the loops below the machine up through the tension disk and to the place where the thread cone sits. now retrace your steps from the thread to the looper place thread under foot.
by starting from the finishing point to the starting point you know where you are going with the thread when you thread the machine so upper looper lower looper right needle left needle. you must get it exactly correct or it wont work
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.
It is important to leave about 3 inches out of the end of the loopers when threading. leave them lie where they come out of the jets. Put fabric under the foot and sew, do not wory about putting the thread under the foot. If it still does not work try changing the needles.