Question about Singer CE-100 Futura Computerized Sewing Machine

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Top tension adjustment

How do you adjust the top tension adjustment on a Sears-Kenmore Model # 158 12520 Serial 0029795?

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Believe it or not, most computerized machines have an automatic tension. This works well providing, the thread is thru the tension wheel setup.
But for further reference,
loops on the bottom-- problem on the top.
loops on the top--problem on the bottom.
Mimi

Posted on Apr 24, 2009

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I am having adjustment problems on my machine, it did not have an owners manual. missing stitches and bunching up underneath the meterial


Have you changed the needle ? Is the fabric a knit ? If the needle has been used for awhile, it may be dull. Many modern fibres are quite hard on needles, which need to be replaced fairly often.



Many knit fabrics require a ball point or Q needle.. [ Kenmore\'s brand of ball point knit needle]. Many knits are notorious for causing skipped stitches and a special needle for knits can really help with this.



If thread is bunching up, is this underneath or on top of the fabric ?

If it is underneath, the top tension may need to be adjusted. Mal adjusted top tension can cause a lot of problems, and the mechanism that controls it can become worn and may need service or replacement.

Oct 01, 2014 | Kenmore Sewing Machines

1 Answer

I have a Kenmore sewing machine - 12 stitch model which I bought in the 70's. I am having a tension problem and can't seem to fix it. What is the normal setting for the top, and bottom?


Hello

Load your Kenmore sewing machine with the right thread and bobbin thread for your project. If you use the wrong weight thread for your fabric or severely uneven weights of thread, this can cause the appearance of a tension problem when it is, in fact, a thread weight problem or a problem with your sewing speed. If you go too fast, you will break the thread. If you go too slow, you can cause loops. Uneven pressure can cause stitches to vary greatly.

Test your Kenmore sewing machine's tension by sewing on a piece of scrap fabric. If your tension is way off, then test on some basic cotton or a firm blend simply to get your tension right. Do not try to start adjusting your tension on silk or leather. Get a base adjustment on a more standard fabric first.

Look at the top threads and bottoms threads. If the tension is off on one side, it will usually affect the other side slightly. So select the side that looks more maladjusted to start adjusting the tension.

If the top thread is too loose or too tight, you will need to adjust the tension dial. This dial is usually located a few inches above the needle on the Kenmore machine body. Usually, your machine will have markings to indicate which direction tightens the tension. If these have worn off over the years, watch the dial as you turn it. If it appears to move toward the machine body, then it is tightening.

If the bottom thread is too loose or too tight, then you will need to open the door to the bobbin case. On some Kenmore models, there is a little screw near the bobbin case that can be adjusted slightly to adjust the tension. On other Kenmore models, there is a screw on the bobbin case itself--not on the bobbin, but on the bobbin's casing. This will also adjust the bottom thread tension. Adjust the bobbin thread tension to make slight changes.

If the thread is looping severely on one side, the thread weights might be off. For instance, look to see if you have a lightweight thread on the bobbin and a heavyweight one on the top. If the thread keeps breaking, the top tension or bottom tension could be too tight or the thread is too lightweight for the material you have selected. Check your combination of threads and material. Also make sure you are using the right weight needle and the right foot for the sewing step or project you are working on.

If your Kenmore sewing machine's tension is off severely or if you have not used your Kenmore in a long time, then you might need to take your machine in to be serviced. Sometimes, the inner parts need to be oiled or the entire machine might need to be cleaned and calibrated by a professional. If you sew a great deal or if your machine sits idle a lot, both situations will usually require some servicing to keep your Kenmore sewing machine and its tension in perfect working condition.

Jul 11, 2011 | Kenmore 15358

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I need help. I am beginning to sew and the bobbin thread is too loose and all over the place. How do you adjust the tension on the kenmore sewing machine for bobbin tension?


Most of your problems can be solved by taking care of your top threading, usually your underside threading will be messed up because of the top thread, bobbins cause loose stitches on top, Read you manual if you don't have one check online and you can usually buy one,also, you can take into Sears, to the sewing section and they can guide you as to what is wrong.Don't mess with your bobbin tension unless you know what you are doing!!!!!!

Aug 24, 2010 | Kenmore Sewing Machines

1 Answer

Can't balance top/bottom thread tension-model 158.Bottom thread is a straight line. Have increased top tension to the stop. No effect.Have reduced bobbin tension until bobbin and case fall freely when held...


I disassembled the top thread tension controller consisting of 12-13 pieces, including 2 springs. Since they all fell out on the table I spent about 2 hours learning the proper stacking order on the central shaft.
With a combination of reasoning based on each unique piece shape and trial and error I put it back together, adjusted top and bottom tensions according to the instruction booklet for the machine, tested some stitching, made final adjustments and all worked well.
I don't know what was changed in the process but it worked.
Don

Sep 03, 2009 | Kenmore Sewing Machines

1 Answer

Sears Kenmore Sewing machine model 15358 Just got this machine brand new yesterday. I've gone through the manual very carefully to make sure the machine is threaded properly. It's very similiar to my old...


The tensions must match ie. top tension =bottom tension. If the material is not sewn together tightly, that means the tensions are mismatched. Sewing machines will sew whenever the top and bottom tensions are equal (be it very tight or very loose).

We usually advise the customer to not touch the bobbin case tension. When that is not changed, all tension adjustments can be made from the top tension above the needle.

It appears that one of the two tensions (top or bottom) is much tighter then the other. I would reset the tensions to how they came, if you are unfamiliar with sewing machines this may take a little bit of experimenting until you get it back to a standard quality stitch.

The other option would be bring it to a sewing tech. A good mechanic should be able to adjust the machine and your tensions to your fabric (and recommend needle size for your thread/materials) in about an hour.

Apr 15, 2009 | Kenmore 15358

1 Answer

Top thread tension tight


March 12, 2009

kenmore 385.17922
i have started using my machine again (after several years) and am doing patchwork.. all has been fine, and suddenly the bottom thread (bobbin) is looping. i've adjusted the tension nob from 4 (where i had it) to 5...back to 4.. 41/2....3 1/2....5 1/2... on and on and the bottom thread still keeps looping.
i've read and re-read the manual...and the only suggestion it gives is to adjust the tension button.
it's not working...... what else can i try??
thanks
eva

Mar 11, 2009 | Kenmore Sewing Machines

1 Answer

Sewing machine repaired but still bunches up


Either no tension on the top thread or damaged needle plate or possibly a broken hook driver spring

Aug 26, 2008 | Sewing Machines

1 Answer

Instructions for theading a Sears Kenmore Sewing machine model 158.14000


all machines thread the same. TTN tension,take up, needle.
Beginning with the spool, guide the thread through the thread guides to the tension assembly. Pull the thread through the tension assembly and test it to make sure the tension is working correctly.
(To do this test,adjust your tension setting to normal or medium or 5 or something in the middle. Raise the presser foot and pull the thread through the tension. It should pull easily!! Lower the presser foot and pull the thread. It should pull noticeably harder.) If it passes this test, continue up through the take up lever,then down through the thread guides to the needle. Make sure your needle is fully inserted and turned the correct way.( If you load your bobbin case from the left side,the needle rule is normally FLAT to the RIGHT is RIGHT. There are some exceptions. If you have a newer style drop in bobbin or your bobbin case loads in the front then the rule is FLAT to the BACK.

To wind the bobbin, guide the thread around the thread guide on
the left top of your machine, then to the bobbin winder. Wind the thread around the bobbin several times, place the bobbin on top of the bobbin winder, push it against the wheel and press the foot pedal. It should stop winding when the bobbin is full or you take your foot off the control

Sewman7

Jun 05, 2008 | Kenmore Sewing Machines

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