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Forum > Sergers, Coverstitch and Blindhemmers > Why does my upper looper keep coming unthreaded? ( Moderated by CarolynGM, Deepika)

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Why does my upper looper keep coming unthreaded?
Brother 1034d
stirwatersblue
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stirwatersblue
Intermediate
KS USA
Member since 12/13/08
Posts: 3187
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Date: 8/29/13 0:59 AM

I don't use my serger very often (the last time I had it out was last October), but usually it's *very* well behaved! Lately, though, it just can't seem to hang onto the upper looper thread. It will either break or--strangely (impossibly?)--just seem to come unthreaded, but still be worked in with the rest of the threads. (I can't figure out how that could happen, since the hole in the looper is a *hole,* not just something thread could come unhooked from, but that is what it looks like). I first started having this problem when trying to figure out how to do a rolled thread. I'm just trying the basic factory presets now, nothing fancy, default tensions, my serger's preferred thread (two cones of Toldi-Lock for the loopers, new basic sewing thread in the needles). New needles.

The manual says this:

Quote:
If the upper looper thread breaks during sewing this may be caused by the lower looper thread getting caught on the upper looper. If this happens, lower the upper looper by turning the handwheel, remove the lower looper thread from the upper looper, and re-thread the upper looper from at least the tension disk.


...But I'm not totally clear on what they mean by "caught on the upper looper." Or how to prevent that, if that is the problem.

I know the advice is going to be rethread, rethread, rethread--but I need to know what I'm doing wrong, in order to *stop* doing it every time I thread the machine!

I will say I read another thread on looper threads coming undone (in that case it was the lower looper), and the advice was to make sure that the lower looper is threaded first. Well, according to the manual for the Brother 1034d, the upper looper is the first thing you thread (upper looper, lower looper, right needle, left needle).

There are also two conflicting diagrams about where the lower looper thread should go as it passes the upper looper. On the machine itself, the threading diagram indicates that the lower looper thread should go under and behind the upper looper, but the manual indicates that it should be pulled off to the left toward the needles, and not cross up into upper looper territory at all.

Any good theories?

Thanks!!
-- Edited on 8/29/13 1:00 AM --

------
~Gem in the prairie

Doris W. in TN
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Doris W. in TN  Friend of PR
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TN USA
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Date: 8/29/13 4:35 AM

I have a Bernina but surely they are all made on the same idea. Take a look et the
Bernina looper threading. For the model 2000DE ( one of my sergers) on pages 21 and 22 where there are diagrams. Maybe they will help.

Messenia
Messenia
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Member since 12/22/12
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In reply to stirwatersblue <<


Date: 8/29/13 7:50 AM

Have you watched the YouTubeVideo about threading the Brother 1034D than another user did? It's supposed to be better than anything provided by Brother.

sew2006
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sew2006
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In reply to stirwatersblue <<
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Date: 8/29/13 9:20 AM

Thread the upper looper as per directions than thread the lower looper. Your lower looper gets placed over top of the upper looper in that little groove of the upper looper. Before you continue turn the hand wheel towards you 1 full rotation. The lower looper thread slides off the upper looper and finds the proper sewing position. Continue threading the needles as normal. Before starting to sew with a freshly threaded serger take all 4 threads under the presure foot and to the left. Turn the wheel towards you so that you can see the chain forming on your needle plate. In 20 years of sewing I find this works for all sergers to make them happy. Double check that needles are inserted all the way up into machine.

------
Janome10001, Babylock ESG3, Brother ULT 2001, White 634D serger, Pfaff 1472, Singer featherweight, Singer 14T957Dc, Bernina FunLock 009DCC coverlock, Brother PQ1500S, Janome CP900.

MrsCharisma
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MrsCharisma  Friend of PR
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MN USA
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Date: 8/29/13 1:39 PM

In my (limited) experience with my 1034D -- that I use regularly and can now thread in like 3 minutes -- it is best to just rethread the entire thing as if you were putting new thread in.

I usually cut them, pull the threaded parts out, and start fresh. And agree with the rest of sew2006 statement.

Also, I usually do a scrap piece of fabric when I freshly thread the serger.

Good luck!!

------
Nakisha
www.sewcraftychemist.blogspot.com
Singer Talent 3321 | Brother 1034D

My Big 4 Sizing: Medium | Tops 14/16 | Pants 18 | Skirts 16/18.

My Measurements: 36 HB | 38.5 FB | 34 W | 44 Hip

Kelly D.
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Kelly D.  Friend of PR
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Date: 8/30/13 11:29 AM

My solution to problems like this was to upgrade to a Babylock with air jet threading. I have not looked back. Sorry you are having these troubles!

PattiAnnJ
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PattiAnnJ
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In reply to stirwatersblue <<


Date: 8/30/13 11:44 AM

I'm with Kelly D. After so many years of threatening to bash my old Funlock against the wall, I got the BL Imagine.

The order of the threading, not lifting the presser foot or opening the tension (if this is an option) before threading can cause problems. Also, watch the guides on the antenna to make sure the thread does not get tangled at this point.

------
I dont give them Hell, I just tell the truth about them and they think its Hell. Harry Truman

"Improvise, adapt and overcome." - Clint Eastwood/Heartbreak Ridge

SewLibra
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SewLibra  Friend of PR
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In reply to stirwatersblue <<


Date: 8/30/13 7:40 PM

I purchased the Brother 1034D about a month ago, but also have a Janome I used for the past 9 years. Both sergers require the presser foot to be in the up position while threading and the lower looper thread to pass under the upper looper, then pull to the back. Then thread your needles, and pull to the back also. Take all four threads and place them to the left and lower your presser foot. Run the machine and it should work without thread breakage, as long as you used your tweezers to make sure that lower looper thread went under the upper looper. This might be different than the manual, but it works for me on both my sergers. Good luck!

------
SewLibra
Brother SB4138, Bernina 1008, Brother 1034D, Janome Harmony 9102D

sewsally
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sewsally  Friend of PR
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WA USA
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Date: 8/31/13 4:56 PM

You must thread in the proper order for this machine. Check your manual.

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