Question about Juki Sewing Machines

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I have a juki 8300n machine. The top thread keeps breaking especially when sewing heavy or thick layers of fabric. I have re-threaded the machine and changed the needle several times. I also adjusted the tension with no luck. Is there anything else I can look for? Is it possible that a broken needle while sewing has damaged something?

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  • Contributor
  • 8 Answers

A broken needle can put your timing out, you need to find a sewing machine tech...

Posted on Feb 08, 2012

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Posted on Jan 02, 2017

  • 43 Answers

SOURCE: skip stitch

The three most obvious causes (other than that of the machine possibly being slightly out of time) are:

1) Too small of a needle size - increase the size.

2) A needle that has a flaw / defect - change the needle.

3) Needle not inserted correctly, either not pushed all the way up into the needle bar, or not installed facing the correct place. On this machine, the small "scarf" in the needle (an indent just above the eye) shouldface the right side of the machine.

Posted on May 07, 2009

Mimito7
  • 128 Answers

SOURCE: sewing heavy fabric

First thing is pin the heck out of it. I would not use a needle bigger than a 16. Set the tension midway and then just tweak it one way then the other to get a smooth stitch. And for your thread, just use polywrapped cotton thread and you should be fine.

Posted on Apr 22, 2009

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Iam sewing seats. but the threed stared braking at the needle & it want saw.


Most likely, it has to do with incompatibility of the needle, thread, and fabric. The force of the needle penetrating the fabric multiple times is actually causing the thread to (wear &) fray and eventually break. There are needles with larger grooves that tend to protect the thread during stitching. Some may recommend a Top Stitch Needle (Home Machine Needles Superior Threads Why Topstitch? The Topstitch needle is the most common needle type used and recommended by professionals and educators. We recommend the Topstitch for piecing, quilting, embroidery, appliqu?, and construction. These needles are available in four sizes to accommodate all thread types, including metallic threads. The Topstitch needle has a larger eye and deeper groove. It is often referred as the MAGIC NEEDLE. It really does make a difference in your sewing experience.)
Why Use Topstitching Needle

Also, if the thread is a tight fit through the needle eye, it will also tear the thread. Make sure that the thread will slip easily through the eye. Go to a larger needle, instead of 90, try a 100.

Be sure to use a brand-new needle.

All About Needles

The Parts of Sewing Machine Needle

You may also consider changing the type of thread you are using. Go with a stronger thread, ie polyester, rather than cotton. Cotton will shred and break easier.

You will probably need to re-adjust the thread tension. If it is too tight, it will also break the thread. If you are using a heavier weight of thread, you will need to adjust both the upper and bobbin tension to accommodate the heavier thread.
Bobbin Tension How and Why Tension is Adjusted

If you sewing fabric that is sticky, ie vinyl, oilcloth, you should try to use a roller presser foot, a teflon presser foot, or a walking foot to help the fabric move with the feed dogs.

Sewing Heavy Fabric with NON Heavy Duty Sewing Machine SEWING IN GENERAL

Tips

Sewing through many thick layers of fabric Sactin

http://www.kollabora.com/q-a/sewing-denim-and-thick-fabric

14 Fantastic Sewing Tricks and Tips Making the World Cuter

How to Sew Upholstery DoItYourself com

...

Apr 22, 2016 | Sewing Machines

1 Answer

Can anyone help with problem sewing button holes in a waistcoat?


some sewing machine are not made to sew thick layers of fabric, the only suggestion I have is to try a new needle, make sure the top thread has not come off the thread take up lever, rethread the machine top and bobbin.

Apr 11, 2015 | Singer 6160 Sewing Machine

1 Answer

Juki industrial sewing machine. Machine will start sewing but after three stitches it stops.


You may need to adjust your tension dial with your fabric you are using and kind of thread, also adjust to thickness of fabric. Always use good sharp needles with your sewing and keep machine clean and oiled.

Feb 02, 2015 | Juki Sewing Machines

1 Answer

Thread keeps breaking


Hai, I think your thread very old or thick. Please putting some drop oil in thread. If your cloth lighter, you use small size needle and new cotton or silk thread.

Mar 13, 2014 | Juki Sewing Machines

1 Answer

Juki DDL 227 top needle keeps breaking


Needle breaks
1.the needle is damaged
2.the needle is not correctly inserted
3.wrong size needle for the fabric
4.the wrong foot is attached
5.the needle clamp screw is loose
6. Top tension is too tight
7. Machine could be out of time


The needle thread breaks

1. the needle thread is not threaded properly

2. The needle thread tension is to tight

3. The needle is bent or blunt

4. The needle is incorrectly inserted

5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew

6. the threads were not drawn to the rear after sewing

7. The thread is either to heavy or to fine for the needle

Oct 08, 2012 | Juki Sewing Machines

1 Answer

I have a 2011 Juki DDL-8300N. Has always worked fine but while sewing on denim it suddenly seized up and stopped sewing. The needle is in the lowest postion through the jeans. I am unable to turn the


Your needle probably bent and got jammed. clip threads top and bottom of the fabric and remove... then get in the bobbin area and look for issues.

Sep 30, 2012 | Juki DDL-8300

1 Answer

I have been sewing denim, and the top thread keeps breaking at the needle. What adjustments do I need to make. It also bunches from the bobbin.


Are you trying to use a heavy thread like buttonhole twist through the needle like the yellow thread on store bought jeans? Most domestic machines will not cope with this heavy thread and it will be too large for the eye of the needle too.

If you are using regular weight 50 polyester thread and its breaking then it could be because the top tension is too tight. Just loosen off 1/2 a number on top tension dial and see if this helps.

If possible, buy a pack of jeans needles size 100 too, these are blue coated with teflon I think, and makes it easier to slip through denim which is a very dense fabric.

Hemming denim jeans is probably one of the toughest jobs for a domestic sewing machine so if you are trying to do this, its a good idea to take it slowly and use a "humpjumper" which helps to maneouvre over the thick side seams.

However, even with all the above, many machines won't sew more than one layer of heavy dense weave denim.

Jul 20, 2011 | New Home HF-106

1 Answer

I have a Juki DU-141 with a tread tension issue. When I raise the presser foot the thread tension releases like its supposed to (i think), but if I place a thick piece of fabric under the foot, the tension...


If you are putting too much fabric for the machine to sew this will happen. Does it sew any other fabrics? Some machines....even many commercial machines.........will not sew real heavy fabrics. Any thing over 1/3 of an inch and thats probably the case.

Derek

Jan 18, 2011 | Juki Sewing Machines

3 Answers

Problems when sewing over heavy jean hems


Are you using the correct type of needle? have a word with your needle supplier and explain the problem. Different threads and different thickness material need different top and bottom tension adjustments.
Can I suggest sew one thickness material at a time with tension adjustments for that thickness. Then change the tensions and do a batch of thicker material.

Mar 29, 2008 | Juki DDL-8700

1 Answer

Question==>JUKI dnu 1541 or ddl 8300n


Might I be so bold as to disagree with Allmakes.
Why would a manufacturer build different models of industrial. They are designed for differnt jobs. The 8300 is a high speed garment machine, the 1541 is a compund feed upholstery machine. The motor is the same HP and does not affect the ability to sew heavy. The garment machine will sew garment weight leather just fine but you will have problems getting the fabric to feed properly particularly over seams. The other issure you may find with a garment machine is it's ability to handle heavier threads. I suggest that the 1541 would be a better choice for making bags and purses.

Jan 26, 2008 | Juki DNU-1541 Mechanical Sewing Machine

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