Question about White Sewing Speedylock 1600 Mechanical Sewing Machine

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Lower loop broke- do I have to start from step one?

As I was changing colors, by tying the new to the old and running it through, my lower loop thread broke. I have never actually threaded my machine but it looked easy enough with the color coded diagram- so I tried, but it is not looping right. Do I have to undo everything and start from step one?

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I see this has been answered, but hopefully this will help someone else. It is NOT necessary to rethread the whole machine. You can just pull out the two needle threads, rethread the lower looper from where is is broken, and rethread the needles in the proper order.

Hope that helps

Posted on Nov 15, 2012

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  • White Sewing Master
  • 1,388 Answers

The thing is that the needle thread is picked up by the lower looper, and if the looper thread breaks and the needle thread is still hooked up, you are trapping the needle threads under the looper thread, so it cannot sew !

You can use tweezers to pull the needle threads off the looper, then thread looper, or just start over commencing from right to left.....Lower, upper, needle, needle.

Posted on May 29, 2008

Yes, take all threads out, and re=thread according to the diagram, following the threading order.

Posted on Mar 28, 2008

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2 Answers

The serger will not form the initial chain. Have checked threading and have new needles, any ideas?


It's an odd thing but on my serger, it actually matters the order in which I thread it. I *try* to tie the new thread to the old and pull it through rather than re-threading, but when I've had to re-thread, I've had trouble getting it to loop again when I thread left to right. It seems that the loopers only loop if the right looper is threaded before the left.

Apr 16, 2015 | Sewing Machines

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I have a brand new Juki MO-50e and the threads are loose on the back of the fabric, how do I fix this?


  1. . re-thread your machine with a rainbow of colors. (important that you remove the existing threads if you are not sure it is threaded properly.) make sure you are lifting the presser foot while rethreading.
  2. Sew a good 6 inches.
  3. Look to see which threads are the offenders and tighten the co-responding tension knobs a little.
  4. Sew another 6 inches. Examine the result. Adjust tension again if needed.
  5. Work this way until you have the stitch balanced.
  6. Finally when your stitches are perfect. clip the threads at the spools in back. And tie on the coordinating colored thread for your fabric.
Get used to this procedure since it is common to have to adjust tensions when you change fabric. Good luck!

Oct 23, 2014 | Juki MO-644D Mechanical Sewing Machine

1 Answer

The thread for the top needle just sews and loops onto the lower thread


I think you are saying that there is a loop showing on the bottom of the lower thread stitch. If the lower stitch looks correct and not bunching, you will need to change the tension on the upper stitch. Make sure that your threads are firmly inserted within the discs also before adjusting the tension. It doesn't take much to change the tension so take it slowly.

Dec 31, 2013 | Sewing Machines

1 Answer

The thread on my juki 816-dd4. How do I retread


Here you go Angie: look on page 6 of this pdf. I recommend that you print this, put it in a zip lock bag and tape it to the underside of your table.

http://www.raichert.com/adobe/MO804-12-16%20Inst.pdf

Basically Any serger is threaded like this.

Upper looper, Lower Looper and then needles from left to right. Any time you break a thread you have to start from the beginning taking the thread out and starting over.

If you want to change colors. Clip the threads near the spools, change out the color and tie the thread to the previous color... gently pull through the thread path to the needles. Clip the knot and thread the needle.

Jul 30, 2012 | Juki Sewing Machines

1 Answer

My needles hits the lower loop on my 16sh644 serger and the thread from my needles won't stay wrapped around the lower loop lever


it's very possible that the machine is out of time & needs to be serviced at a sewing machine shop

May 26, 2012 | Singer 14SH654

1 Answer

I'm in trouble deep-I was trying to fix an old


Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
TROUBLE;UPPER THREAD KEEPS BREAKING;
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
TROUBLE;LOWER THREAD KEEPS BREAKING;
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
TROUBLE;MACHINE STARTED SKIPPING STITCHES;
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
TROUBLE STITCHES SHOWING LOOPS;
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs


Thank you and good luck.

Jun 06, 2011 | Toyota SE-06 Mechanical Sewing Machine

2 Answers

I have tried several steps to correct my Bernina 160's bottom thread tension; too loose. I did occur after I cleaned out bobbin case & hook race,


Buy to loose do you mean big loops on the botom? If so fallow these steps.
Usaly big loops on the botom of the fabric means that the top is not threaded coreccty. I would sugest threading the top thread again all the way to the needle. After you have done that pull on the thread and lift and lower the presser foot. There should be tension when it is down and no tensoin when it is up. I allway do this before I sew on a machine. If you do not have tension on it when the presser foot is down you did not get ithe thread in the tension unit. If you have tension when it is up then your machine needs a upper tension release adjustement.
Hope this helps friend.
Other problems could be a small peace of broke needle it the race area(inspect this close).
If you adjusted your bobbin tension this may need to be reset.

Mar 17, 2011 | Bernina Virtuosa 160

1 Answer

Hello I just got a new home My Lock 334D machine. It has Seized intermittenly. could we troubleshoot the problem & fix it together?


Un-thread and then see if the machine will run without thread.

If not, it needs to go into the shop for repair.

If it does, refer to the manual. Or, the guide that should be printed on the inside of the serger's door.

Raise the thread antenna to it's highest position. Keep it at this position when serging. If lowered for storage, and threaded, be sure the thread does not tangle around the antenna arms.

Raise the presser foot.

Open/set the tensions to zero.

Raise the loopers to their highest level - there may be an indicator mark on the side of the serger to match with a mark on the handwheel to help with this.

Start threading from the right to the left; upper looper first.

After threading, reset the tensions to a medium number, lower the presser foot and stitch a chain to test the stitching.

Serge a scrap and adjust the tension as necessary.

Once you get the serger working as it should - don't run out of thread. Tie off, open the tension, raise presser foot and gently guide the new thread through the threading process.

When changing the thread or removing the thread to store the serger, cut the thread at the antenna, leaving thread tails for tying off the new thread.

If you do not have Nancy Zieman's "Serge with Confidence", you will find it much more informative than the average serger manual.

May 01, 2010 | Sewing Machines

1 Answer

STITCHES DEEP TO BOBBIN SIDE HAVE CHANGED


You do need an oiling and cleaning. Also, try adjusting on the bobbin cover by turning th little screw with a small screwdriver. Keep adjusting and testing until you get the loops just as you want them...

Aug 05, 2009 | Sewing Machines

2 Answers

How to i thread my 008d bernina serger?


I believe it is color coded right?
start with the Upper looper follow from the upper looper throught the loops below the machine up through the tension disk and to the place where the thread cone sits. now retrace your steps from the thread to the looper place thread under foot.
by starting from the finishing point to the starting point you know where you are going with the thread when you thread the machine so upper looper lower looper right needle left needle. you must get it exactly correct or it wont work

Jun 21, 2009 | Bernina 1008

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