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sarahjb

Juki DNU 1541 Needle Won't Stay Threaded

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Hello all, 

I have spent a good hour searching the internet, but again, I am also notorious for never finding the right sites. I can't seem to figure out why my needle on my Juki won't stay threaded. I will start sewing and within 5-10 seconds, the needle won't stay threaded and the thread just slips right out. I have held the extra end to see if that changes anything.  I have rethreaded it countless times. I have changed the tension on the thread. I have twisted the needle in various positions just to see if the needle was off by a little. There's nothing new about what I am sewing. It's the same thickness as all previous garments I have sewed. Any suggestions out there? Thanks so much! 

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Have you tried changing it for another needle of the same type?..and does the original needle actually make locked stitches ?..if so ? what do they look like top and bottom..

Edited by mikesc

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The way it is right now, the needle doesn't do anything. It just pokes holes and the thread slips right out of it, so there are no stitches being made. It also bunches up underneath the leather. I tried holding both bobbin and top thread and then start stitching and that also doesn't seem to help. I do think the needle needs to be changed, but I have to buy the needles online right now because none of my local stores have this needle. It was working just fine yesterday. But today I took the needle off to try and see if I could find it in local stores, but they didn't have it. I replaced the same needle and now it's just slipping the thread out. 

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I can't tell from your photo if the needle is inserted correctly or not. Make sure that the ridge is on the left and the cutout "scarf" is on the right. Thread from left to right. Make sure you haven't forgotten to thread through all tensioners, the check spring and the take-up lever. Make sure there is thread in the bobbin.

What else? Inspect the needle to see if it is bent. Make sure you inserted it all the way into the needle bar needle mounting clamp. Check the shuttle to ensure that is is rotating and is in time.

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If you start on a scrap piece and turn the wheel by hand, it maybe possible to see or feel the bind that's breaking the thread easier.

Or take a look with the machine head tilted back, more light for myself so I use this method, by the way does this 1541 have a letter at the end.

Good day

Floyd

 

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Thanks brmax, i did do that and i am definitely no expert so I couldn't figure it out. 

But, somehow I got it working again! The needle was inserted wrong, even though I took it out and reinserted it several times, rotating the needle in many different directions. I decided to keep doing that by the mm and it finally got to working again. Pain in the butt! 

Thank you, Wiz! 

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10 hours ago, sarahjb said:

Thanks brmax, i did do that and i am definitely no expert so I couldn't figure it out. 

But, somehow I got it working again! The needle was inserted wrong, even though I took it out and reinserted it several times, rotating the needle in many different directions. I decided to keep doing that by the mm and it finally got to working again. Pain in the butt! 

Thank you, Wiz! 

Needles have to be fully inserted into their mounting clamps/brackets, plus aligned to position the thread loop towards the approaching hook. If the needle is too many degrees out of alignment, the hook may not pick off the loop. On top of that, thread coming off industrial spools twists. If it coils in the opposite direction to the rotation of the hook, the loop may be hard to pick off. In this instance it may help to wind the top thread backwards to its twist around a post on top or before the top tension disks. This will counteract the twist and may give a better loop at the eye of the needle. Black bonded nylon thread is double dyed and is the most twisty of all colors.

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Are you threading it left to right?

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I just had a woman call last week I sent a 1541S to & I had her send me a threading pic & it was left to right.

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I am getting a tip here that I'm sure has been mentioned before, but didn't ring as clear to myself till now the issue was real recent.

I don't mean to jack the "thread" but for my hard head it turns the light on, anyway I have some 15series heads and two have say the hd thread guide setups, this shown in the engineers manual (these I thought to be the ticket to have at first).

Oddly some thread situations have got hung up on the take up knob and produced some very tight stitches and more than a few times, Not as I recall on the hd guide style, but I'm trying to think back and for sure poly and am considering both poly and solarfix thread to have done this.

Thanks Wiz I'm going to adjust the threading through the post on the 4 heads looking at them earlier they are all different and believe your onto something I am going to use, with organization.

All of you are making better light of situations to get work done around here, appreciate it.

Floyd

 

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