Question about Necchi 3102 Mechanical Sewing Machine

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Adjusted the tension on bobbin, it won't sew a stitch just runs and no grabbing of the bobbin thread at all like you not sewing a thing.... adjusted top tension I am out if ideas.Help me please... The needle will pick-up the bobbin thread when yo first load, but thats it no more

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  • Necchi Master
  • 7,365 Answers

Check the needle to see if it's damaged-roll on flat surface to see if it rolls correctly & also check the tip of the needle to see if it blunt or broke
check the bobbin to make sure it's not warped
make sure to keep a thread tail 3-5 inches when sewing
check to make sure the bobbin is inserted in the bobbin case correctly & the bobbin case is put in snug
if these suggestions don't work it may be that the timing is off & it would have to be serviced

Posted on Oct 01, 2010

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Posted on Jan 02, 2017

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2 Answers

I notice the thread from the bobbin is loser than the one coming directly from the spool. Also, one side of the stitching seems normal and the other side seems like a long single stitch


That is tension. Sounds like you need to tighten the upper tension slightly to bring the bobbin thread up. The tension is correct when the upper and bobbin threads meet in the middle of the fabric. Also, tension will not always be constant. It may need to change as you change fabrics, thread, and as your machine ages, so it is best to get comfortable with adjusting the tension for each project.

Sewing Lesson 10 How to Fix Tension on Your Sewing Machine

Understanding Thread Tension Threads

How to Adjust the Tension on Sewing Machine

Jan 13, 2017 | Sewing Machines

2 Answers

How do I fix a bobbin tnesion problem>


Bobbin tension is one of the biggest problems most sewing machine operators have. Check information sent for assistance on this.
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Jul 23, 2015 | Sewing Machines

2 Answers

How to adjust the bobbin tension.


According to the manual, you should not need to adjust the bobbin tension (and I located other sites which stated the bobbin tension cannot be adjusted on this machine). Apparently, all the tension adjustment is accomplished through the upper thread::
"EN Thread Tension Upper thread tension Basic thread tension setting: "4". (1) To increase the tension, turn the dial to the next number up. To reduce the tension, turn the dial to the next number down. A. Normal thread tension for straight stitch sewing. B. Thread tension too loose for straight stitch sewing. Turn dial to higher number. C. Thread tension too tight for straight stitch sewing. Turn dial to lower number. D. Normal thread tension for zig zag and decorative sewing. Correct thread tension is when a small amount of the upper thread appears on the bottom side of fabric. Lower thread tension The bobbin tension has been set correctly at the factory, so you do not need to adjust it. Please note: - Proper tension setting is important for strong seams. - There is no single tension setting appropriate for all stitch functions, thread or fabric. - A balanced tension (identical stitches both top and bottom) is usually only desirable for straight stitch construction sewing. - 90% of all sewing will be between "3" and "5". - For zig zag and decorative sewing stitch functions, thread tension should generally be less than for straight stitch sewing. - For all decorative sewing you will always obtain a nicer stitch and less fabric puckering when the upper thread appears on the bottom side of your fabric. 1 A B C 22 D"

Doing further research, I found this statement on a machine review site:
"After reading reviews online from where I've bought my drop-in bobbin machines, I think many of the negative reviews are due to the bobbin thread coming up without laying across the bobbin. It can cause the stitches to look very sloppy and no amount of tension adjusting can fix the stitches."

There are several machine review sites wherein 4423 owners stated their disappointment in the 4423's performance. Some said the machine failed almost immediately and others said the machines developed problems when sewing heavy fabric.

Apr 26, 2015 | Singer 4423 Sewing Machine

1 Answer

When sewing straight stitch the needle thread was looping up on the bottom now while trying to adjust, the needle doesnt grab the bobbin thread


You have a tension issue. Use the dial on the front of the machine. to turn the tension tighter.Use a double length of fabric and sew a little, turn knob, sew a little, turn knob. Continue doing this till top and bottom thread are equal and grabbing in the center. Good Luck... xo

Sep 19, 2014 | Sewing Machines

1 Answer

My stitch does not sew on right side of fabric. I sew & see the underside of the stitch. I remove the fabric & the stitch is on the underside.... Never known sewing machine to do this. Help!!


Hi. first thing is to remove the threads from the machine, top thread and the bobbin, and replace to manufactures instructions. If still the same the problem sounds as if there is no tension on the bobbin [under] thread, adjust to a light tension. Then adjust top thread tension until the knot is in the middle of the cloth. Most times people keep tightening the top tension..

Aug 10, 2013 | Brother XL-2600I

2 Answers

How do you adjust the bobbin


Hello

Set the tension on the sewing machine for the weight of the material you want to sew. The tension setting shows in the stitch on the material. Use the chart on the machine that matches types of stitches with suggested material tensions. An example of this is, the stitch to sew jean material is different than the stitch to sew silk.

Take the bobbin and wind the thread around it. Make sure the bobbin is empty and don't fill it too full of thread. A bobbin filled too full won't stay tightly spun.

Thread the string evenly on the bobbin. Move the thread back and forth evenly and in layers that are level. Many Singer sewing machines have a bobbin winder on the top of the sewing machine, and the consistency of how it threads can save you frustration later.

Find the hole on the bobbin that is located near the inside spindle of the bobbin. Take the thread sitting on the sewing machines spool and insert the thread in the hole from inside the bobbin to the outside. Set the threaded bobbin on the spool designated for spinning on the top of the sewing machine for some Singers.

Turn the side drive wheel slowly until the threaded bobbin has a layer or two of thread on it. Push down on the drive peddle and fill the bobbin, but don't thread it to the very edge. If the bobbin is too full the thread will release erratically. Cut the thread from the spool.

Drop the bobbin into the bobbin case under the area where the needle sews the material. Close the case and turn by hand the side wheel drive until the bobbin threads into the sewing machine. You can tell when the bobbin is threaded by the tiny piece of thread that juts out of the bobbin case where the needle goes up and down.

Grab the thread with your fingers and pull it out approximately 4 inches. Your bobbin is now spun and threaded.

Aug 02, 2011 | Singer 1120 Mechanical Sewing Machine

1 Answer

Sewing a bunch of thread from the bottom, this stops the machine from actually sewing


Yes, it does. There are a couple of reasons the bobbin thread could be bunching up on the underside of the fabric. It could simply be that the machine needs cleaning. Take the bobbin assembly out, brush all the old lint out as best you can, reoil the machine once it's all clean, and make sure there aren't any little bits of thread caught in the bobbin assembly. Rethread the machine (carefully) and change the needle. This solves the problem usually--especially if the machine was sewing along fine and the problem develops suddenly. '
The other thing to check is your tension. It could be that the top tension is too loose. But different color thread in the top and in the bobbin, stitch a few inches (be sure to held the top and bobbin thread ends behind your needle as you start to stitch) and check. WIth the pressure foot down, adjust the tension, and stitch again. Keep stitching, checking, and adjusting until you see little if any bobbin thread on the top or top thread on the bobbin.
Another thing to reminder: use the appropriate thread and needle for the fabric you're sewing.
Let me know if this works, ok?

Robbie

Jan 31, 2010 | Elna Sewing Machines

1 Answer

How to adjust tension on bottom stitch?


There are tow places where the thread tension is adjusted.

One is bobbin. This is not routinely adjusted. Just once and it is good for long time. This is done by turning the only screw on bobbin by about 1/4 turn or so at a time. Try several settings until you find he best.

the other place is the conventionally on body of the machine.

Tension of bottom stitch or top stitch are very confusing words. meaning difft things to difft pple.
All i can say is this. If u see bottom stitch run straight through loops of top thread. then either top tension is too loose or bottom too tight. and vise versa.

With top tension set to middle position adjust the bobbin to get correct stitch. Then later on all u need is to adjust only the top setting according to stitch and cloth


Oct 16, 2009 | Brother LS-2125 Mechanical Sewing Machine

2 Answers

My ls2125i won't stitch


Although I am not a expert at sewing machines, I have worked a lot with an industrial sewing machine. You might check the tension of the thread that goes through the needle. If it is to tight it will pull it through the needle. There should be somewhere on your machine that you can adjust the tension.

Jul 28, 2009 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

Stitches not even


the needle bar on my sewing machine is loose not sure how to adjust will not go through the fabric to grab the bobbin thread
please help

Aug 31, 2008 | PfaFF Sewing Machines

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