Lower loop broke- do I have to start from step one?
As I was changing colors, by tying the new to the old and running it through, my lower loop thread broke. I have never actually threaded my machine but it looked easy enough with the color coded diagram- so I tried, but it is not looping right. Do I have to undo everything and start from step one?
Re: lower loop broke- do I have to start from step one?
I see this has been answered, but hopefully this will help someone else. It is NOT necessary to rethread the whole machine. You can just pull out the two needle threads, rethread the lower looper from where is is broken, and rethread the needles in the proper order.
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Re: lower loop broke- do I have to start from step one?
The thing is that the needle thread is picked up by the lower looper, and if the looper thread breaks and the needle thread is still hooked up, you are trapping the needle threads under the looper thread, so it cannot sew !
You can use tweezers to pull the needle threads off the looper, then thread looper, or just start over commencing from right to left.....Lower, upper, needle, needle.
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It's an odd thing but on my serger, it actually matters the order in which I thread it. I *try* to tie the new thread to the old and pull it through rather than re-threading, but when I've had to re-thread, I've had trouble getting it to loop again when I thread left to right. It seems that the loopers only loop if the right looper is threaded before the left.
. re-thread your machine with a rainbow of colors. (important that you remove the existing threads if you are not sure it is threaded properly.) make sure you are lifting the presser foot while rethreading.
Sew a good 6 inches.
Look to see which threads are the offenders and tighten the co-responding tension knobs a little.
Sew another 6 inches. Examine the result. Adjust tension again if needed.
Work this way until you have the stitch balanced.
Finally when your stitches are perfect. clip the threads at the spools in back. And tie on the coordinating colored thread for your fabric.
Get used to this procedure since it is common to have to adjust tensions when you change fabric. Good luck!
I think you are saying that there is a loop showing on the bottom of the lower thread stitch. If the lower stitch looks correct and not bunching, you will need to change the tension on the upper stitch. Make sure that your threads are firmly inserted within the discs also before adjusting the tension. It doesn't take much to change the tension so take it slowly.
Upper looper, Lower Looper and then needles from left to right. Any time you break a thread you have to start from the beginning taking the thread out and starting over.
If you want to change colors. Clip the threads near the spools, change out the color and tie the thread to the previous color... gently pull through the thread path to the needles. Clip the knot and thread the needle.
A sewing machine operator can often help themselves when their machine does not operate properly. Here are some simple instructions, which if properly used can save time and mechanics service calls. TROUBLE;UPPER THREAD KEEPS BREAKING; This could be trouble;================Do this; 1.Top tension to tight================loosen tension 1 turn 2.Machine improperly threaded=========check threading 3.Thread twisted on guide post========" 4.Thread twisted out of tension=======" 5.Take up spring bent or broken=======Check action of spring 6.Thread jumped off pull off finger===Check threading 7.Needle bent or burred===============new needle 8.Bad cone of thread==================try another cone TROUBLE;LOWER THREAD KEEPS BREAKING; 1.Bobbin tensionspring to tight=======Loosen tension slightly 2.Bobbin threaded wrong===============check threading 3.Bobbin wound to tight or uneven=====try new bobbin 4.lint or thread on bobbin case=======clean inside case 5.Lint or thread inside hook==========clean inside hook 6.Bobbin case nicked bent or burred===check/change case TROUBLE;MACHINE STARTED SKIPPING STITCHES; 1.Needle bent or burred===============change 2.Needle set in crooked===============Check 3.Thread jumped off take up spring====check threading 4.Thread jumped off pull off finger===check threading TROUBLE STITCHES SHOWING LOOPS; 1.Forming loops on top of cloth=======Tighten bobbin tension ======================================or loosen top tension. 2.forming loops on bottom of cloth====Tighten top tension 3.Bobbin placed in case incorrectly===remove and replace 4.Bobbin thread slipped from under====check threading of tension===============================bobbin case 5.Lint or thread in top tension=======clean between tension discs
Buy to loose do you mean big loops on the botom? If so fallow these steps.
Usaly big loops on the botom of the fabric means that the top is not threaded coreccty. I would sugest threading the top thread again all the way to the needle. After you have done that pull on the thread and lift and lower the presser foot. There should be tension when it is down and no tensoin when it is up. I allway do this before I sew on a machine. If you do not have tension on it when the presser foot is down you did not get ithe thread in the tension unit. If you have tension when it is up then your machine needs a upper tension release adjustement.
Hope this helps friend.
Other problems could be a small peace of broke needle it the race area(inspect this close).
If you adjusted your bobbin tension this may need to be reset.
You do need an oiling and cleaning. Also, try adjusting on the bobbin cover by turning th little screw with a small screwdriver. Keep adjusting and testing until you get the loops just as you want them...
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