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Overlocker looping(forming chain stitch) not stitching on fabric

After I thread the Elna 614de overlocker, the chain stitch is formed. However, it does not stitch on the fabric,irrespective of type of fabric.

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  • Sewing Machines Master
  • 7,365 Answers

Try new needles
make sure tension is correct
could possibly be in need of some adjustment

Posted on May 07, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

bargainbox
  • 1388 Answers

SOURCE: Machine not sewing

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:

  1. Lower Looper
  2. Upper Looper
  3. Left Needle
  4. Right Needle
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.

Post an update and we'll get this right.

Bargain Box

Posted on Feb 03, 2008

SewExpress
  • 41 Answers

SOURCE: Stitches not forming!

Good Morning,

A few things to try:

  1. Loosen the needle screw, make sure the needle is fully up in the needle hole and re-tighten the screw. Vibration can sometimes cause the needle to slip...and the needle not fully inserted can cause this problem.
  2. Make sure the bobbin is turning the proper direction. If your machine has a standard bobbin case that comes out of the machine, turn the case so the bobbin is facing towards you. Pull the thread tail and make sure the bobbin turns clockwise. If it's turning counter-clockwise, flip it over and try your machine again. If your machine has a drop-in bobbin, double-check your particular machine instructions to make sure it's going the right direction (clockwise or counterclockwise depending on the machine).
  3. Make sure you have tension on the upper thread. Do this by lowering the presser foot (make sure the thread tail is NOT under the foot) and give the thread a tug. You should feel tension on the thread. If not, the thread isn't fully down in the upper tension disks. You should be able to give it a further tug to pull it down into the disks. No tension on the upper thread can cause the stitches to not form.
  4. If none of the above seems to help, you'll need to get your dealer involved (provided you purchased your machine from a sewing machine dealer). They can determine if it's just something happening during threading or if the machine is out of timing. They are there to help you before AND after the sale and should be willing to take care of whatever is happening.
  5. If you did NOT purchase your machine from a dealer, and the store you purchased from does not have a sewing machine technician, we would suggest that you return/exchange it for a new machine and see if the new machine has the same problem (most department/big box stores that carry machines have a very liberal return policy since they do not have personnel dedicated to sewing machines).
  6. If the new/replacement machine has the same issue, we would suggest you return it (no sense frustrating yourself) and perhaps find a local sewing machine dealer to purchase a machine from. Authorized sewing machine dealers are geared towards providing machines and service (before and after sale) and are worth the extra $ for the peace of mind and knowledge that you'll have someone local to call on for help.
Best of luck with your machine - we hope it's something minor and you're up and sewing soon! Don't hesitate to reply to this post if we can offer further help, ideas or suggestions.

Happy sewing,
Kim & Linnette
www.sewingexpressions.com

Posted on Jul 23, 2008

Zenqi
  • 208 Answers

SOURCE: My brand new Kenmore serger

The loopers must be threaded before the needles.

Make sure that the needles are not threaded. Thread the loopers and have the loose ends behind the presser foot. Then re-thread the needles and place a scrap of fabric under the foot and sew. Make sure that the edge of the fabric is not to the right of the plate, but where it would be if the knife had cut it.

Posted on Jun 17, 2009

bargainbox
  • 1388 Answers

SOURCE: My Elna Supermatic model 722010 now skips stitches.

Take a look through this comprehensive list of
TROUBLESHOOTING
symptoms and possible solutions, it may also be useful for further reference in other times of need.

Check the timing of the needle to the hook. HERE is a guide to generic principles of Timing



Now also take a more specific look at tension issues....
Please TRY the solution BEFORE giving your considered rating.

Specific detail on bobbin case adjustment (with picture) near halfway down reply, the remainder will help you achieve a balance of top and bottom tensions.

Ensure that all is clean and free of lint and jams, this is the most likely cause....now for tension troubleshooting .......

This solution is for tension problems...if you cannot form any sort of stitch, the issue is quite different, so please let me know if you need a different problem solved.....

It is quite long, but just work through each section in order.

The "knotting up" can reveal a lot. If you have loose threads on one side or the other, the tension on the opposite side will be the culprit.

QUICK SUMMARY FIRST:
Ensure sharp new needle,
Thread guides and Bobbin are Clean & Clear of lint
Set Top Tesion to 4 ....then....
Balance Bobbin to suit.

TOP THREAD TENSION:
If the looping threads are on the underside as you sew, it is the top tension. Top tension ought to be between 4 & 6 (this variation to allow for the different weights of fabric in your projects).

IS YOUR NEEDLE SHARP ?
If you are using a needle that has seen quite a deal of work, or you suspect it may be blunt, change it for a new one !

TOP TENSION & GUIDES:
Make sure that when you thread the machine the presser foot is up so the thread goes between the discs and not to one side, top tension between 4 and 6, and that you have threaded through all the guides, including the last one, usually on the needle arm, just above the needle clamp.

It may be there is lint trapped between the discs, this will keep them slightly apart and reduce the actual tension, sometimes dramatically.

If tensions appear correct, and the thread is definitely in the channel between the discs, but still too loose and looping, try raising presser foot and remove your thread.

Now, with a 2" (50mm) wide strip piece of fabric 8 - 10" (20 - 25cm) moistened with methylated or denatured spirit, gently insert the fabric strip and clean between the discs with a see saw / to and fro action.

In the worst cases, gentle use of a needle to pick & remove the jam may be necessary, but be very gentle and make sure the tension is set at Zero and the presser foot is raised, (to disengage tension plates).... do not gouge or score the plates, they need a polished surface to work correctly.

BOBBIN TENSION:
Far less common, but if the loose threads are on the top, it is bobbin tension that is loose, it too may have lint in the spring and be giving a "false" tension.

I would not recommend fiddling with bobbin tension without good reason, it may end up with missing small screws and spring pieces, however, you can take the needle plate off to clean
the hook race area (where bobbin case sits)

...this is just good housekeeping, my wife does this every time she replaces the bobbin....

just take it out and clean the bobbin case and the fixed metal hook race with a small brush to remove lint. If there is a significant amount of lint, use a vacuum and small brush to get the worst.

Then wipe all this area with a cloth or cotton bud (Q tip) moistened (not soaked) with methylated spirit, especially if there appears to be fine dirty deposits....oil and lint combine to conspire against you.

If it seems likely that you ......really ....do .....actually .....need .....to adjust the bobbin case, first check there is no lint trapped in the metal spring where the thread is tensioned.

TOP LOADER:
Drop-in Bobbin case will look similar to this image with the tension screw in the middle of the metalwork....

4c76dc1.jpg ...the other screw at one end is holding it all together, so beware....it is not a tragedy to undo the whole lot and clean it, but very gingerly and lay the bits out in sequence and orientation, or you risk tearing your hair out !

FRONT LOADER:
....this is a bobbin case from a front loading machine and works in a very similar fashion to the top loader with drop in bobbin, again, if you dismantle it, take care so you can put it all
back properly.
165ca5c.jpg FINISHING UP
GETTING THE BALANCE RIGHT:
When you are certain there's no trapped lint in top tension or bobbin, set the top tension to 4 and the bobbin tension to a point where you just begin to feel resistance.

Try using good quality thread of contrasting colours so you can more easily spot the changes.

Set your zigzag to one width less than maximum (eg. 5 of 6 ...or... 4 of 5 etc) and sew a sample for a few inches and check the result.... adjust the bobbin tension screw very little at
a time, perhaps 1/16 of a turn.

You may find you are playing with this balance for some little while and if you are putting the needleplate on and off each time begin to think it cannot be correct to do this.....BUT....it is,
and eventually, you do get a "feel" for the correct tension and then it happens quite quickly.....as a user you won't be doing it very often unless there is lint built up (or are there small hands at work around the house !?!?!)

OTHER ISSUES:
If you live near the ocean as we do, salt air can play havoc with metalwork inside and out, so to help minimise this, keep a few small packets of dessicant (silica gel) in your machine
case....no case ? then make some sort of cover !

Same applies in any damp or humid environment, keep your machine dry and dust free.

Budget for a proper full service every couple of years (more often if heavily used) and if you don't use your machine for a few years, be aware that old oil will dry out and combining with
dust and form a "clag" like glue (another reason for some sort of cover, even a teatowel !)

FINALLY, A WORD ON THREAD:
If it is worth spending the time, energy and money on making something that you would like to give lasting enjoyment......use quality thread, .......it may seem to cost a little more at the
time, but the results, ease of use and added longevity will be worth the extra, and as a bonus, your tension troubles may be fewer and further between, because there is a more consistent diameter with good thread, and less compensating to be done by your tension plates and less thread breaks

Best Wishes
Martyn
Bargain Box in Australia

Posted on Sep 10, 2009

  • 152 Answers

SOURCE: Won't form a chain stitch

You 910 serger doesn't have the option for a Chain Stitch. It is a 2, 3, or 4 thread serger. You can do a good number of different stitches but a chain stich is not one of them.

If what you mean it that it won't "chain off", meaning sew with no fabric beneath the foot as you gently pull the thread towards the rear of the machine, that could be for a number of different reasons. First, change the needles and unthread the machine and start over. If the threads are not exactly where they should be, your serger won't sew correctly. A great video on threading your machine can be seen at:http://www.husqvarnaviking.com/mediafiles/huskylock/index_en.html

Posted on Oct 15, 2009

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1 Answer

Why does fabric get caugh on the roll hem devise when over locking


this sounds like an overlocker/serger machine you are using? if the fabric is catching on the overlocking tongue it could be a number of factors, have you lifted the top cutting blade out of the way and forgot to put it back into place? That would be my first thought, the top and bottom blade move against each other cutting the fabric. Rolled hemming usually requires the blade to be set on about 2, or middle of its setting range, the stitch finger is pulled back out of the stitching area, top looper thread is loosened off and bottom looper thread is tightened up, resulting in the top looper thread wrapping around the edge of the fabric and pulling the cut edge down under within the seam, forming the rolled hem.

May 13, 2014 | Elna Sewing Machines

1 Answer

Timing affected


NOT a home fix unfortunately

Mar 31, 2014 | Sewing Machines

1 Answer

Fabric jam


NOT a home fix

Mar 30, 2014 | Sewing Machines

1 Answer

Although overlocker is correctly threaded it does not form a chain


here's a link for a manual
http://www.sewingpartsonline.com/instruction-book-elna-t33.aspx
try changing the needles & see if that helps the machine to form
a proper stitch, if it doens't then it's possible that the machine
could be out of time & needs to be checked at a sewing machine
shop

Aug 20, 2012 | Sewing Machines

1 Answer

What setting are the three threads set on for a rolled hem on a singer ultralock l4sh654 and what is the lever by the plate for?


Rolled hemming on any overlocker is usually achived the following way. Right hand needle only.
Blade over to the right usually to cut wider than normal but you can vary this to suit the fabric and stitch width you want.
Thread in this needle and the upper and lower loopers. If you can source any, use woolly overlock thread in the upper looper, this fluffs out when not tensioned and covers the fabric to give the look of solid stitching. Change upper looper tension to about 2 and lower looper tension to about 6 or 7.

The lever by the plate is usually to control the little stitch finger where the stitches are formed, move it backwards and it should move back towards you?? If this happens, then you want it in the retracted (towards you) position for rolled hemming so the stitching is much smaller and the fabric can roll. Normally this stitch finger holds the fabric firm for the loopers to form the stitch over for your normal 3 or 4 thread overlock.

Now test stitch and see how it looks. Tighten the lower looper thread so it lays right beside the needle on the underside. You may need to then tighten or loosen more the upper looper, you want the upper thread to wrap all the way around to the underneath against the lower looper thread and needle.

The cut edge of fabric should roll to underneath inside your seam. Once you've got this happening, turn the stitch length down to 0.5 or so to close it right up tight. This uses heaps of thread so I usually test everything else, then close it up at the end to minimise waste.

Hope this makes sense, good luck.

Sep 22, 2011 | Singer 14SH654

1 Answer

My elna pro 4 DE tension is completely out how do I reset it


Firstly check that you haven't got the thread ****** set for rolled hem, this is sometimes little lever on the sewing plate just in front of the foot. The stitch forms over this ****** for normal overlocking but it is retracted out of the way for rolled hemming. So if you've left it retracted, this will muck up the normal stitch.

Now for a four thread stitch, set all the tension dials to 5, after checking that all the threads are flowing freely from the spools to the tension dials and not catching anywhere. Ensure aerial is fully raised too. Stitch length on 2.5 and differential on 0. Test serge on a medium weight fabric and check the stitching.

Now adjust the cutting blade to fill out the stitch if you are getting looping off the edge. ie if it is looping off the edge move blade to the right a little bit so there is more fabric inside the seam.
And reverse if stitching is pulling up the fabric inside the stitching into a ridge, move blade left a little.

Test stitch again. Now if tension is still out, just adjust the looper tensions in very small increments to tighten up the stitches, only ever 1/2 a number movement on the dial each time and test to see what effect this has. Do top looper if it appears looser on top, lower looper if that one appears to be loose.

If the machine's tension dials have been calibrated correctly, then 5 on all should give you a half way decent stitch and you should be able to just finesse with the blade and minor adjustments on the top and bottom loopers. If you just can't get to this point at all, finger test the tension on the thread below each tension dial by pulling gently and see if they all feel like they are under the same tension, if one is way out then this dial may be faulting. Turn it to zero and see if you can clean it by "flossing" with a piece of clean waste cotton, then turn back to 5, rethread and try again. Sometimes they get a bit of thread or dust in there.

Hope this helps you with the overlocker.

Sep 06, 2011 | Sewing Machines

1 Answer

I'm not sure how to thread my machine, I lost my manual elna lock pro 5Dc


I would suggest that you buy a new manual for this as your overlocker has 5 threads that need to be threaded up correctly to form a stitch and there are several different stitches that can be made with this model such as a rolled hem, chain stitch, three thread overlock, four thread overlock and safety stitch with three thread overlock, lots to learn.

You can buy a manual here for $USD14.99: http://www.sewingpartsonline.com/instruction-manual-elna-pro5dc.aspx
or this website has a copy for $USD10.
http://www.sewusa.com/Sewing_Machine_Manuals/Elna_Manuals/Pro_4DC_DE_Instruction_Manual.htm

Always well worth buying the manual and saving a lot of frustration trying to guess how things work and it adds value if you are going to sell the item.

You can get some general overlocker threading tips from http://sewing.about.com/od/sergersoverlock/ss/serger.htm which may help you too.

Aug 31, 2011 | Sewing Machines

1 Answer

I have a elna 686 serger an it sounds perfect and acts like its sewing but there is no thread staying on the material.... I have tryed to rethread it several times and it does not help at all. What could...


There is several things to check:

Is the needle thread actually going through the needle eye?
Is it chaining off without fabric under the foot? If not, then you need to revisit your threading up, there is a specific sequence that you need to thread the loopers then needles, then pull the threads under the foot, lower pressure foot and press the foot control to make a few stitches, a chain of thread should form.

If this is not happening and you have threaded it up in the right sequence, then check both needles are fitted correctly, fully up into the housing and flat shank to the back. On most sergers the two needles sit at different heights in order to form the stitches. If you haven't done it for a while, change the needles.

If you still can't get a chain of stitching then it is possible that the timing between the loopers and needles has gone out and it will need to be serviced by a technician to get this back right.

Jul 18, 2011 | Elna Sewing Machines

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