Question about Singer 3116 Simple
When i began to sew with my singer the very first time i used it i noticed that the stitching on the top was perfect but the stitching on the bottom was loose in some spots, bunched and tangled in other spots, and perfect in other spots. i have followed the threading guide in the manual to the letter. and i do not know what is wrong.
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Posted on Jan 02, 2017
SOURCE: bunching thread underneath
When your thread is bunching at the bottom, your top tension is not tight enough, or you did not thread the machine correctly. Make sure the thread goes through the tension blades. Check your manual how to do it properly. you can check if there is any tension by pulling on the thread before threading through the eye of the the needle, and with the presser foot down. By pulling with the left hand and adjusting the tension with the right hand you should be able to feel a difference. Normal setting is between 3 and 5
Posted on Nov 13, 2007
This could either be due to the bobbin being wound too loosely, or the tension on the top thread is too loose. This just happened to me the other day, and I thought it was the bobbin thread, but then I put another bobbin in with a different color than the top thread (this is a huge help in diagnosing thread issues), and I was surprised to find that it was actually the top thread that was a big loopy mess on the underside of the fabric. I fixed it by tightening the tension on the top thread (quite a bit), and everything was fine.
Posted on Jan 23, 2009
SOURCE: Bunches of threads on the bottom
You didn't give the brand, but if it's any of the older, non computerized machines, your problem is most likley in the tensions.
Loopies (tangles or nests of thread) on the bottom means upper tension too loose (or bobbin too tight).
Let's do the bobbin first...once it is set...99.9% of loopies on the underside are a problem with upper tension.
This is for bobbins that load on the front/side of the machine.. Take out the bobbin case...check the area (hook/race area) that the bobbin goes into for lint, tiny thread pieces, etc.). Now, most of this type of bobbin loads into the case with the thread going counter clockwise (when you are looking at the open side of the case), insert the bobbin in the case, and pull it through the hole/slott in the side of the bobbin case. To test for proper tension:
Lay the bobbin case in the palm of one hand, pull on the thread coming off the bobbin case. The bobbin will gently lift off your hand & if you wiggle the thread, the bobbin case should slowly drop about an inch at a time. If it's too tight, loosen the Larger (closest to where the thread comes out) screw on the side of the bobbin case about 1/16 of a turn...tiny bit...retest. Once that is done try a test stitchout. Remember to hold onto the bobbin & top thread for first few stitches.
If you still get loopies on the bottom...tighten the upper tension...it should be set between 4-5 for regular sewing.
Make sure the needle is in properly.
For a drop in bobbin...adjusting that tension is harder. You take the face plate (needle plate, the plate covering the sewing area of the machine) off and remove the bobbin case...First...look at the case in the machine...there is a little lip sticking out, usually at the bottom right corner of the open area (closest to you)...this is where you need to have the little lip when you replace the bobbin case.
Remove the case...check under it and inside the machine for lint/dust/threads & using a small paint brush (I use a childs tooth brush sometimes), clean the lint out. Now check the bobbin case for lint, especially where the thread fits..look at the inside of the case, you will see a little flat metal thing with a slott in it...make sure no lint in that slott. I use a pin to remove lint from there. Reinsert the bobbin case, rethread it all, (bobbin goes counterclockwise). Put the faceplate back on & test the stitches...still loopies with the upper set to between 4-5? Then you will remove the faceplate, remove the bobbin case & loosen the screw on the outside about 1/16 of a turn (these are usually covered in a colored coating) and retest.
I know that most home machine makers say not to adjust the bobbin..but that was back when you had one size thread...now we have many, many sizes and types of thread, so adjusting the bobbin may be needed sometimes.
Rule of thumb is:
loopies on underside...tighten upper tension
loopies on top...loosen upper tension.
But, like I said...with all the new threads..sometimes you have to adjust that bobbin.
Posted on May 14, 2010
SOURCE: singer 404 sewing machine
I would first make sure the thread tension is adjusted properly. if this does not fix your issue, check the point on the shuttle hook and make sure it is not broken off. it should come to a needle sharp point. if the tip is broken off it may not pick up the thread from the needle properly. then double check the timing and the needle shaft depth. first, make sure your needle is fully seated and tightened down. the groove in the needle should face forward. there are two timing marks on the needle shaft. at maximum depth you should see both lines and the top line should be right at the bottom of the needle shaft bushing. then as the shaft goes back up, when the bottom line is at the bottom of the bushing the point of the shuttle hook should be right behind the needle and centered in the indentation on the back of the needle. you may need to make minor adjustments on the needle shaft depth depending on what brand and type of needles you are using.
Posted on Jul 07, 2010
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