I am not sure what the problem is but the threads will not loop to form the ovrlocking stitch. I think the problem started after letting down the knife, only that it was not correctly in it's position. It may have move a part out of place, but this is only a guess.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
What kind of thread are you using. The most often problem today is that the thread is too thick for the size of needle. Try using a Metallica size 90 or a top stitching needle size 90
if the thread is a cotton type or a quilting thread it is often to thick to travel easily through the eye of a needle quickly to form a good stitch.
If the thread is bunching up, it sounds to me like the stitch isn't being formed properly. Nothing to do with the bobbin, more a case of timing.
The spike, or whatever it is on your machine, which is under the needle, must pass through the loop in the thread from the needle at exactly the right time.
When the needle reaches it's lowest point, as it starts to go upwards again,a loop is formed in the thread,next to the needle eye. This loop is what the spike must pass through in order to make the stitch.
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.
It loops, it's just that your shuttle isn't catching the loop. The loop is formed on the upstroke of the needle on the back or "scarfed" side of the needle. If the shuttle point doesn't catch that loop, no stitch.
First make sure you have a fresh needle. If still no stitch... take it in for service. (clean, lube and time)
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
If the loops are forming on the bottom it is the TOP thread tension you need to check. Make sure it isn't too loose. Also is the needle the right type and size for the fabric? Check the stitch out on plain cotton fabric if a tension adjustment doesn't fix it.
The TOP thread effects the UNDERSIDE of the stitch and the BOBBIN thread effects the TOPSIDE of the stitch :)
Raise the presser foot before threading the machine.
What looks like a problem with the bobbin thread is usually due to the machine being threaded with the foot down.
Foot up - tension control opens; foot down - tension control closes.
When the tension control is closed, the thread cannot enter as it should and then cannot be controlled to form a proper stitch with the bobbin thread.
The Singer Sewing Co website has many graphics that are the same for all sewing machines - you can check there with regards to winding, inserting the bobbin into the case/shuttle and bringing up the bobbin thread.
First, make sure that the wire rack is DIRECTLY above the cones of thread (it may be backward). The thread must come straight up from the cone as it pulls off. Not coming straight up will cause a wavy stitch because of the thread dragging on one side of the cone.
Make sure that the threads are fully pulled into the tensioners, not riding on top of the discs.
Inspect the needle plate and ensure that the stitch forming pins and or fingers are intact.
I believe stitch 11 is a zig zag so you are probably decreasing the length to get a satin stitch. You will get a better satin stitch if you select it directly. I think that it is about 29. The machine forms the satin stitch differently than the zig zag and it should look better. If you still get loops on top, you may need to have a qualified technician check the needle to hook clearance. If this distance is too great, the machine skips stitches and you will form loops. Several other adjustments may be needed to get a perfect stitch and a qualified Husqvarna technician should be able to take care of this problem for you.
Make sure you have threaded the machine from right to left, it sounds like the needle thread is trapped under the lower looper thread and cannot form a stitch.........start the threading over from scratch like this:
Is there a diagram for how to thread on the inside of the door ?
Follow that slowly and carefully to make sure you have not missed any thread guides on the way, as each one needs to be followed through to ensure correct tension and thread progression.
If you are certain that all threaded correctly, did you have a fabric jam and pulled it loose ? If so, the timing may well be affected.