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Skipped stitches on safety stitch on overlock

Right needle constantly losing the thread

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Two solutions...

1. Wrong needles (eye size) for your machine

2. Bobbin tension not tight enough.

You should a set screw and adjustment for tightening the tension on machine.

Basic... thread getting too loose to stay in needle properly.

Posted on Jan 25, 2009

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U need to follow certain links....

http://www.fabrics.net/SarahOptimizeSewingTime.asp


8 steps....

 Now, the issue is regarding the tension :)
http://www.helium.com/items/1267208-how-to-properly-adjust-sewing-machine-tension

Adjust the tension.......
and ur issue "WOULD" be resolved.
Thanks.

Posted on Jan 25, 2009

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1 Answer

My overlocker is skipping stitches, I have re threaded it and replaced the needles and oiled it, it is still skipping stitches. any ideas as there is nothing else in the manual to tell me what to do>


Check to make sure you have the right needles and that the thread and needles are compatible. Usually, coverstitch machines use a slightly longer needle than overlockers and sometimes people get them confused. Also, it might have something to do with the fabric you are overlocking. Try stitching a different kind of fabric and see if it is still a problem.

Mar 09, 2015 | Sewing Machines

1 Answer

Brother 1034d serger skipping stitches. Stitches are loose even when adjusting the tension.


It appears that there are two issues: skipping stitches, and, loose stitches. Let's deal with them individually but first some general points to check.
1. Change both needles for completely fresh ones out of the package. Make sure that they are inserted all the way up, this is very important. The right needle should appear longer than the left one. Make sure also that you are using the correct needles for your serger.
2. Use a good quality thread with very little stretch, almost no fuzzies, and in pastel colour. Dark thread ages quicker, therefore has a shorter shelf live. A good quality sewing machine thread is also acceptable.
3. Make sure that the tension dials are clean and free of lint or other debris.
4. Re-thread the serger in this order, keeping the presser foot in the down position at all times
a) Upper looper. Ensure that the thread is securely embedded inside the tension discs. Place the thread tail under the presser foot to 11:00 o'clock and place the presser foot down again
b) Lower looper. This is the difficult one to thread but make sure that all the thread guides are properly threaded as well as the upper looper elbow. Check that the thread is lodged between the tension discs. Once the lower looper eye is threaded, place the thread in front and over the upper looper and then under the presser foot to 11:00 o'clock and place the presser foot down again.
c) Right Needle. Thread the right needle path, again ensuring that the thread is between the tension discs. Place the thread tail under the presser foot to 11:00 o'clock and lower the presser foot.
d) Left Needle. Proceed as with left needle.
e) Double check that all tension dials have their respective threads embedded between the discs by pulling firmly up on each thread above the tension dials.
f) Check that the stitch length is set to between 2.5 and 3.0, differential to normal, blade position to middle, blade is engaged, and upper looper converter not in use.
g) Set tensions to recommended setting for 4-thread overlock.
g) Make a test stitch out. How is it? Still having the same issue/s?
If yes, continue with the items listed below, otherwise have a great time serging.

Skipping Stitches:
1. Check that the looper tips are smooth. Burrs will cause problems.
2. Check that the needles match the type of fabric being sewn.

Loose Stitches:
1. Double check threading.
2. Debris caught between tension discs will also manifest itself in loose stitches. Take an 8" X 6" piece of medium weight clean and lint free cotton fabric, fold it in half length-wise and pass the fold only firmly between the tension discs from top to bottom (with the presser foot up and no thread in the tension dials).

Re-thread and test stitch. How is it now?

Sep 30, 2014 | Sewing Machines

1 Answer

Coverlock skipped stitches


I'm assuming this is a domestic overlocker machine and not an industrial coverlock. Getting the coverlock stitch to sew out evenly without skipping can be problematic apparently with these.

First, if you are sewing a knit fabric, change the needles to ball points and see if this resolves it.

If not, I would suggest trying EX705 needles (assuming that your machine takes the regular domestic 130/705H needle system). The EX are just extra long scarf at the back which helps with securing the stitch on the underside. There is also a SUX needle, which is same long scarf but a stretch needle; for knits particularly those with elastane in them.

Thread wise, try Maxilock brand. You may find a wooly overlock thread on the underside works too.

Nov 09, 2011 | Sewing Machines

1 Answer

What are the settings for overlocking stretch fabrics


For knits with lycra in, you are best to thread up four threads and seam with the 4 thread marrowing stitch like this, preferabbly with ball point needles in your overlocker, size 80. Use cones of polyester thread, 3,000 metres or 5,000 metres rather than normal thread. (Although if you have trouble matching thread colours you can use a small reel on the left needle as this is the thread that will show on the right side of the garment.)

11_7_2011_5_17_44_am.jpg


Start with your machine tensions on 5, both needles in and threaded, stitch length of 2.5 and no differential (set it on zero) and test stitch. Using stretch or ballpoint needles is a good idea too to avoid any deflection and skipped stitches. Then practice serging on some fabric scraps, double layer and look at the seam, if it is tunnelling (pulling up the fabric), then move the cutting blade to the left. Test again and if still tunnelling, then loosen off the tension on the top and bottom loopers by a half number and test again.

If the opposite is happening and the threads are looping off the edge of the fabric, then move the cutting blade to the right to trim less fabric, test again. If still too loose, then tighten up the top and bottom looper tensions by a small amount and test again.

You want the seam to lie flat, the two looper threads to meet right on the cut edge and the needle thread to be just visible from the right side when you press open the seam.

There is always a small amount of adjustments needed on an overlocker when setting up for a new project as every fabric will behave differently. Don't tighten up the tension on the needles much past 5 though, or you may get thread breakage.

If you find that the seam is flutting then you can use the differential feed to adjust for this too.

There is some good overlocking info on Debbie Cosgroves website, www.sewing.about.com, with images which may help too.

Nov 07, 2011 | Janome MyLock 634D Mechanical Sewing...

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

4 thread overlock --right needle skipping stitches randomly. I've put in new needles, changed threads, etc. The stitch is beautiful just skipping a stitch randomly when sewing.


Sounds like the loopers are slightly out of line or the needle bar is twisted. Unfortunately these adjustments are not easily made. Suggest you take it to an authorized husqvarna viking dealer for service. You can locate a dealer near you by visiting the husqvarna viking website and clicking on the Dealer link on the left-hand side of the page - http://www.husqvarnaviking.com
Good luck.

Feb 13, 2010 | Husqvarna Sewing Machines

1 Answer

My Evolve serger is skipping stitches while using the 4 thread safety stitch which is a chain stitch with a two thread overlock. Sews fine for a few stitches and then skips a loop which unravels. I checked...


First, change the needles making sure to use the el705 needle system. Second, make sure the subsidiary looper is engaged properly (plugging up the upper looper hole). Also make sure the needles are all the way up in the machine. This should do it or it may need to be adjusted but the Evolve is a very, very reliable machine. Hope this helps...

Nov 20, 2009 | Baby Lock Evolve

2 Answers

Thread continually breaking in lower looper needle


I was having this very same problem with my lower looper . I had been using the one needle stitching all afternoon and I was doing quite nice stitching. then I decided to put the right needle back in and do some overlock stitching and guess what I spent the next two hours fighting the looper problem. I had completely re-thread this machine at least 20 times now. I decided to take the needle out and re-insert it and re-thread it one more time (right lower looper- then upper looper- right needle- then left needle) was careful to pull all threads to the back and under the presser foot for about 6 inches.
Held on to the thread, lowered presser foot and did the chaining stitch. BINGO it didn't break, tried it with a piece of cloth and Perfect stitches. I have a Babylock BL402 and used tension settings left to right
4-3-3-3 and default settings for the rest.
Hope this helps someone someday.
Jo Griffith

Oct 20, 2008 | Toyota TL-432DE Mechanical Sewing Machine

1 Answer

Bernina 1300 dc overlocker skipping stitches


Make sure the chain stitch thread is threaded exactly as it should be, make doubly sure the thread comes off the bobbin vertically and runs through all eyes smoothly. Any faults in the threading causes extra tension at the needle despite what the tension is set on.
If this is not the cause then the needle depth and the looper timing needs checking.
Rob

Mar 14, 2008 | Sewing Machines

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