Question about White Sewing Superlock 2000 ATS Mechanical Sewing Machine

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My white 2000 serger is dropping the thread on the first needle when I sew with it- the loopers, both upper and lower are working correctly in conjunction with the "right upper" needle. I have changed needles, adjusted tension, rethreaded and everything else I can think of. Any ideas? I want the full 4 threads, not 3!

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Could be as simple as poor quality thread (not using MaxiLock thread), the needles not inserted properly (the left is slightly higher than the right), a missing stitch forming pin on the needle plate, the needle bar being too high or a looper timing issue.

As the needles raise, the upper looper should move to the right with the right needle tip slightly above the eye of the looper.

Posted on Jul 19, 2009

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Posted on Jan 02, 2017

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1 Answer

I have a white speedy lock serger model 7340. I completely pulled all threads out and now trying to re-thread new thread. I have tried around 15 times. It will not loop. Threads don't interlock at all


Be sure that you are threading each thread in the correct order. The manual should have those instructions.

ALWAYS RAISE the presser foot when threading the machine!!!! For most machines, the upper looper is threaded first, the lower looper second (the lower looper thread finishes by draping OVER the top of the upper looper and then pulled toward the back of the machine), then thread the needles. Give each thread an extra little tug when threading the tension disk to make sure it is seated completely.

Even if you are unable to locate a tutorial for your particular machine, most models from the same era will thread the same.

Don't be surprised if it doesn't work the first, second, or even the third try. It took me most of a day to get mine threaded correctly the first time!!! Patience!

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How to thread White Superlock serger

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You can search YouTube for other videos.

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1 Answer

Instructions rethreading serger BL3-426


There is a user manual available here:

Babylock Sewing Machine Manuals Instruction and Repair Manuals

https://www.google.com/search?q=Baby+Lock+BL3-426+manual&ie=utf-8&oe=utf-8

This may be helpful:
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Sep 06, 2016 | Sewing Machines

1 Answer

Why won't my sl370 work?


Hello Mary.
By the question, it looks like the lower looper is making loops? If so, check that you are using the correct needles for your serger and that the needle or needles is/are inserted correctly:
- needles must be all the way up into the needle shaft
- needles must face with the flat side to the back and the groove to the front
- use at least needle size 12/80, not smaller

Check these few items, if the loops are still not forming:
- re-thread the serger from the start, keeping in mind to thread in the proper sequence (upper looper, lower looper, needles)
- make sure that the lower looper thread lays on top of the upper looper thread and is passed to the back of the serger and then under the presser foot when threading
- make sure that the thread are securely engaged IN the tension assembly
- make sure that the serger is set for 3-thread or 4-thread overlock (i.e. that the upper looper converter is not engaged)
- check all tension setting
- stitch length should be around 2.5 - 3.5

Let me know how it goes.
Happy serging!

May 02, 2015 | Sewing Machines

1 Answer

My serger is not looping at all. I changed the needles and nothing is working.


Start with the threading sequence. Upper looper, lower looper, left needle, right needle. Your upper & lower loopers must be threaded before your needles or it won't make the stitch. If it still doesn't work, it's out of time and will need to be taken in to a shop.

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1 Answer

Kenmore 385 #3 thread breaks


Try removing thread #3 from the tension altogether. If this doesn't work, then try using a different spool of thread. Some break easier than others. If this doesn't work, try rethreading your serger from the the beginning. Upper looper first, then lower looper, then needle. Test on scraps.

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I have a White Superlock 2000 ATS Serger and it looks like I have it threaded correctly but the LEFT needle thread is not catching. What am I doing wrong?


First re-thread it from start in this order AFTER checking to see that the left needle is higher than the right one. (It's supposed to be higher!) Make sure the needles are new and flat side to the back. Thread first the upper looper, than the lower looper, rt needle and then left needle. If this doesn't work, the timing might be off which is a trip to the repair service. Let me know if this works. Hope you don't have to take it to the "doc!"

Aug 22, 2010 | White Sewing Superlock 2000 ATS Mechanical...

1 Answer

JUKI MO 134 SERGER


How to Thread Juki MO-134 Serger from watching lady at Lyles. Turn upper blade up. Push in first then turn up.It makes threading easier. Blue Thread upper looper first. Pull thread through tension knob. Don'tjust lay it there. (She thought that is what I must have done) Orange Thread lower looper next. Pull thread through tension knob as inthreading upper looper. Adjust lower looper so it is right nextto upper looper so that their points are almost together and directly belowsewing needles. Lower looper will be in front of upper looper (I believe). With tread from upper looper pulledback, slightly lift lower looper above upper looper and thread. I think this isright. Pull thread back with other thread. Tension is the key. Remember that. Yellow: Thread left needle first.Remember tension. Pull thread through curled wire on left side of needle arm. Green: Thread right needle. Rememberabout tension. Pull thread through curled wire on right side of needle arm. b> Note: Before sewing turn the wheel tomake sure the stitches are going together correctly.

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2 Answers

Threading my whites superlock 2500 serger


You can get sewing machine manuals online at sewingmanuals.com. I didn't see the superlock 2500 but there were other superlocks. They may thread the same way.

Jul 30, 2008 | White Sewing Speedylock 1600 Mechanical...

1 Answer

Threading a serger


Always thread the lower looper first. Then the upper looper. Finish by threading the needles.
By the way, the lower looper is the one which is always below the needle plate and the upper one is the one which travels above the needle plate.
sewman7

Jul 01, 2008 | Simplicity Serge Pro SW432 Mechanical...

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Threading a husqvarna huskylock 1001L serger


Solution taken from "Handbook for Huskylock Sewing Machine Models 1001L/1000L/1000"

1. Raise the presser foot by using presser foot lever. When the presser foot is raised, the two thread tension discs in the thread tension control panel are released so that thread passes freely between them. Otherwise thread tension may not be correct.

Important! When threading the needle, always be sure to lift the presser foot lever, and also take care to thread in the proper order.

Threading order:
1. Upper looper thread (green)
2. Lower looper thread (blue)
3. Double chain stitch looper thread (purple) in case of 5 thread stitch or double chain stitch
4. Right needle thread (red)
5. Left needle thread or double chain needle thread (yellow)

Caution!
Because the left thread tension dial (yellow) is used for either the left needle or the double chain stitch needle, these needles will never be used at the same time.

Upper looper (green) sequence:
1. Thread holder (silver triangle openings attached to thread holder stand)
2. Thread guide (flat silver clips just behind thread tension disc)
3. Thread tension disc (circular knobs with numbers for tension setting)
4. Pull thread around upper looper guide and upper looper
5. Pull thread into hole of upper looper

Lower looper (blue)
Repeat 1, 2, 3.
4. Pull thread around guide (see color coded chart inside front serger cover).

Easy threading mechanism (for lower looper)
1. Pull out the lower looper threading lever
2. Thread the lower looper and position the thread on hook of the lower looper
threading lever.
3. Push the lower looper threading lever back to its basic position while
holding the end of the thread.

Caution:
When returning the lower looper threading lever, always make sure that the two
blue triangle marks (directional arrows) meet each other.

Right needle thread (red)
Left needle thread (yellow)
Important: Thread the needles after threading of lower looper and upper looper.
First raise the presser foot lever, and then thread the needle threads in order shown in color coded thread guide.




Jun 24, 2008 | Sewing Machines

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