Question about Janome MyLock 634D Mechanical Sewing Machine

Lower looper needle broke

Machine was working great when the lower looper broke,i was informed that it was because the timing was out, my friend who is a mechanic has been for thirty years knows he can replace the looper, he thinks the reason it broke was because the screw was loose and had nothing to do with the timing,as it had been working great, please help with a solution, is it possible for a person with a great deal of mechanical knowledge to do a home repair, thank you

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6 Answers

Well, first of all, while it might be possible, I highly doubt it.
More then likely the timing is off. There are several adjustments that need to be made correctly or you will end up with more problems. Your best bet is to take it to a qualified service technician.

Posted on Oct 10, 2007

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I have a funlock 004D/004, the lower looped broke and I replaced it with one I ordered online. It makes a chain when I run it but when I try to sew fabric nothing catches. Any suggestions?

you have to make sure the looper is properly positioned. With the screw loosened slightly you should be able to move the looper up and down slightly, thus adjusting the timing. You are looking for the lower looper tip to come in slightly above the needle eyes, as close as possible without touching. Then the upper looper must come in right behind the lower looper "head" as close as possible without touching. The upper looper should then extend past the left needle by about 2-2.5mm, and the needles will come down before the eye of the upper looper returns to the right.

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1 Answer

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First re-thread the machine starting with the upper looper(3), then lower looper(4), then the needles(2,1). If that doesn't fix it, it may be a matter of loosening the needle tension. Lastly slowly turn the handwheel and see where the loopers cross. The upper looper should come in just behind the scarf of the lower looper without any contact on the forward motion. Otherwise Your needlebar height could be off. Timing a serger is a very precise process and making adjustments could throw it out even further.

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1 Answer

Broke a needle, replaced it. Now stitching is all wonky. Rethreaded many times, changed both needles. Adjusted upper and lower loopers. Nothing is working. Worked fine until the broken needle

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...

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1 Answer

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I'm going to assume here you're talking about a serger. Unthread the lower looper and the eyes of the needle. Set the lower looper tension to 0. Rethread the lower looper, then the needle eyes. Then reset the lower looper tension (try about half a number lower) and see if it chains. If it won't chain, try replacing the needles.

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I have a little cheapie Brother 1034D serger. I have had this machine for several years without any problems. When I went to use it the other day the lower looper thread was constantly breaking. I...

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http://www.brother-usa.com/VirData/Content/en-US/HAD/Consumer/UsersManual/UM_1034D_ES_178.PDF

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1 Answer

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I have a funlock 004D/004, the lower looped broke and I replaced it with one I ordered online. It makes a chain when I run it but when I try to sew fabric nothing catches. Any suggestions?

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Lower looper needle broke

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Related Questions:

I have a funlock 004D/004, the lower looped broke and I replaced it with one I ordered online. It makes a chain when I run it but when I try to sew fabric nothing catches. Any suggestions?

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Not finding what you are looking for?

MyLock 634D Mechanical Sewing Machine

I have a funlock 004D/004, the lower looped broke and I replaced it with one I ordered online. It makes a chain when I run it but when I try to sew fabric nothing catches. Any suggestions?

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Lower looper needle broke

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Anonymous

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Related Questions:

I have a funlock 004D/004, the lower looped broke and I replaced it with one I ordered online. It makes a chain when I run it but when I try to sew fabric nothing catches. Any suggestions?

Brother overlock 1034d is not chaining. The upper looper is not passing far enough left to catch the left needle. Makes a "crunchy" sounds some times too.

Broke a needle, replaced it. Now stitching is all wonky. Rethreaded many times, changed both needles. Adjusted upper and lower loopers. Nothing is working. Worked fine until the broken needle

Thread broke on bottom looper the first time out of box i had to try and thread and the tension was still tight The bottom threads were not stiching

I have a little cheapie Brother 1034D serger. I have had this machine for several years without any problems. When I went to use it the other day the lower looper thread was constantly breaking. I...

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When the needles go down the lower looper move on the back of the needles goin up the lower looper moves in front of the needles and causes the thread brake and makes a craking sound when the lower looper...

Not finding what you are looking for?

MyLock 634D Mechanical Sewing Machine

I have a funlock 004D/004, the lower looped broke and I replaced it with one I ordered online. It makes a chain when I run it but when I try to sew fabric nothing catches. Any suggestions?

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Do I change the plate Rolled hem for empisal overlocker

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