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Toyota overlocker sl3000 ; 3rd thread keeps snapping. How do I stop this ?

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Third thread--is that the upper looper? Remove all the threads from the machine. Clip them below the thread tree, RAISE the presser foot, and then pull all 4 threads down through the needle. (Never Pull Up!!)

ALWAYS RAISE the presser foot.
Rethread beginning with the Upper Looper, then Lower Looper, then the needles. Be sure to ALWAYS thread in this order!! (On most newer machines, when threading the Lower Looper, always finish with the Lower Looper "draped" over the top of the Upper Looper.)

If a thread breaks, remove the threads and start over from the beginning as trying to fish a thread through the existing threads very SELDOM works.

Verify each thread path is correct.

When threading each thread and to insure the threads are seated in the tensioners, give each thread an extra little tug when going through the tension disk.

Be sure to oil your machine frequently to keep it operating smoothly!

Make It Handmade Threading Your Serger or Overlocker

Serger threads Threads Magazine Gatherings Forum Sewing Questions Answers

Posted on May 03, 2017


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Posted on Jan 02, 2017


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I have an Elna Pro 4 DE overlocker and the thread keep breaking - I have re threaded a number of times now but the thread keeps breaking - it was working fine earlier today - what could be the proble

Try different thread (black thread seems to be more problematic because of the heavy dye). Perhaps, change the needles.

When you re-thread, do you completely remove all the thread and start from the beginning--there could be a snag somewhere or the thread is looped around something, ie the thread tree? ALWAYS RAISE the presser foot when threading. Give each thread an extra little tug when going through the tension disk--it will sometimes make a little snap sound when it seats. Also, make sure you are threading each in the order specified. Threading out of order will generally guarantee a problem.

There is a slight chance something (thread bits, lint) could be stuck in the tension disk.

If it continues, you may want to take it for service as it could be the timing is off.


Dec 12, 2016 | Elna Sewing Machines

1 Answer

Problem with an overlocker that does not overlock

You may need to rethread all the threads because most sergers need to be threaded in the right sequence. I looks like this one has to be threaded starting at the right and progressing left.

Jan 20, 2014 | Janome Sewing Machines

2 Answers

Thread 1 keeps snapping

Is it possible the thread might be too old? If so, it might tend to break easier than normal. Also if it got wet.

Jan 03, 2018 | Janome MyLock 644D

1 Answer

My overlocker keeps snapping the bottom thread. Why?


lower your top tension down, as it is tighter then your bobbin thread and also tighten your bobbin thread, this is done by the small screw on the bobbin holder, also you can try using the older metal bobbins these are the ones with the small holes around the top and bottom shank, but please make sure that they are the larger size bobbin, and only go very slow at first, try just in sewing mode first or just wind it over by hand.

Aug 01, 2011 | Janome Harmony 9102D Mechanical Sewing...

1 Answer

I just bought a 3 thread overlock toyota model 6300. i am having a very hard time finding a manual. any ideas?

There are free Toyota overlock sewing machine manuals free on this site.
They don't have one for the manual you mention but the overlock machines all look pretty similar so you might find it useful.
Also try their on line guides, although they are only available in French at the moment.

Aug 19, 2010 | Toyota Sewing Machines

1 Answer

Thread Keeps snapping on my 4th reel brother 1034d overlocker

I was having the same problem. I was trying to thread only that 4th one because it keep breaking. It did not stp til I rethreaded all the threads and did it worked fine

Apr 06, 2009 | Brother 1034D Mechanical Sewing Machine

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