Question about Juki DDL-8700

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Juki DDL-8700--top & bobbin thread won't hold together for stitch

My machine was working fine and then I change the needle and now the threads will not make a stitch. I sew over the fabric and see the needle with top thread going through the fabric, but it doesn't pick up the bobbin thread and make a stitch. I have inserted another needle, but same problem exists. I have checked and the needle is inserted correctly, the machine is threaded correctly and I have played around with the bobbin and top thread tensions, but nothing works! Help please!

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  • vicky mallett
    vicky mallett Oct 23, 2013

    Your needle bar needs to be moved up or down a tad depending on what kind of needle you are using. My juki manual tells me that if I am using a DB-1 needle the needle bar needs to be set at the second notch from the bottom of the needle bar. I think there are 4 notches on the needle bar...they are hard to see but they are there. Once again if you have a manual for your machine there should be a section on "timing" and that is where they talk about the kind of needle and the needle bar setting. Yikes...I am learning all this myself right now. Good luck

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Machine out of time . the hook is not grabing the loop. make sure u have the scarf of the needle facing right.

Posted on Feb 25, 2015

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What bobbins do I use on a Juki DDL-8300

Posted on Mar 11, 2011

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Upper thread always cuts. Straight stitch doesn't work. The upper thread always cuts. The tension is No. 3. The stitches is adjusted to no, 2. The fabric is thin, soft and Lacey . Please advice.


Be sure to install a brand new needle of the type suitable for the fabric you are sewing.
All About Needles

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwiJuN_Np6bMAhVJKWMKHSGmDvAQFggjMAE&url=http%3A%2F%2Fwww.schmetzneedles.com%2Flearning%2Fpdf%2Fschmetz-needle-chart.pdf&usg=AFQjCNHTR52AmqwzvyCjbXmD5Ch52Va5_Q

Use a thread that is suitable for the fabric. If you are sewing fine, light-weight fabric, use a fine thread--avoid old or bargain bin thread. Use the same upper thread in the bobbin.

When threading, always raise the presser foot so the thread will seat properly in the thread tension and verify that the thread path is correct (consult the manual).

Standard tension is usually the midway point between high & low number. The stitch length could be set a little higher than a 2--maybe a 2.25 or 2.5 for light fabric.

Since you are sewing fine fabric, it sometimes helps to use a removable stabilizer to give the fabric some extra body while stitching--perhaps a wash-away stabilizer if the fabric is washable.

Test your machine on scraps of the fabric you will be sewing. Re-adjust the tension as needed. The correct tension is when both upper and bobbin threads meet in the middle of the fabric.

If the thread continues to break, then there could be a burr or nick somewhere that is catching the thread and causing it to break. Could also be a needle/hook timing issue.

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Apr 24, 2016 | Sewing Machines

1 Answer

When I sew silk or fine fabric the thread breaks and the fabric bunches up, what am I doing wrong, I first had the A foot and changed to B, changed the needle and still the problem persists


Check to be sure you are using needles and thread that are compatible with the fabric. Generally, finer threads will work better on fine fabrics along with a smaller needle. Be sure to change needles frequently as dull, bent, or nicked needles will cause very frustrating issues.
All About Needles

Remove the thread completely from the machine. RAISE the presser foot and rethread from the beginning, making sure the thread path is correct.

Some machines have a presser foot pressure adjustment (consult the owner's manual). Adjusting the pressure that the presser foot applies to the fabric & feed dogs is helpful when sewing especially fine or heavy fabric. Also, when sewing fine fabrics, loosening the tension could be beneficial.

Changing presser feet may also help, ie try using a straight stitch foot vs a presser foot for zig-zag stitching.

Something else you can try is finding a presser foot with a teflon finish or a roller foot that will glide or roll with the fabric through the machine. Even if you can't find a brand name presser foot for your particular machine, an adapter shank can probably be found that would allow you to use snap-on feet of all different designs and uses. Provides a lot of choices for presser feet for less than purchasing a brand-name presser foot. There are snap-on kits available on eBay and other auction sites.

Some machines also can take a straight-stitch needle plate--usually an additional accessory that can be purchased. The hole where the needle penetrates the needle plate to access the bobbin thread is actually a small round hole. With a zig-zag needle plate, the hole the needle penetrates is a wide rectangular hole that can allow fine fabrics to be pulled down through the hole. Zig-zag capable machines usually have a zig-zag needle plate as standard.

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Feb 22, 2016 | Sewing Machines

3 Answers

I am using a Juki DDL 8700 thread to tight & not pulling through needle & cactching bottom thread


needle too small or machine out of time. to time machine theres a mark on needle bar. lower needle bar till mark shows and raise bar till even with bar guide. take off feeder plate so u can see needle in relation to hook. when mark on needel bar is even with bar guide the hook should be 1/16 fron passing the needle. if not loosen 3 screws and trial and error it to get it right. use a small screwdriver and tighten just on screw when u hab aglined the hook to needle. do a full rotation and watch where needle is and needle bar mark. needel should be as clost to hook without touching.

Dec 30, 2014 | Juki DDL-8700

1 Answer

Why wont my Juki DDL-8700 form a stitch?


machine is out of time and u probably have burrs on the hook since you broke the plate with a needle probably from pulling fabric and bending the needle. you instruction manual will tell u how to time machine and its really very simple. all u have to do is take off feeder plate, loosen the 3 screws that hold the hook then lower the needle with the wheel until the needle just starts to rise. bring the loose hook point to i/16 " fron the needle and tighten hook screws. machine must be tilted back to do this whole operation. it helps to have a short screwdriver to tighten the hook screws. remove burrs with lite emory paper stroking in the sale direction as the hook.

Jun 25, 2014 | Juki DDL-8700

1 Answer

My juki 8700 h frays thread while trying to sew


Hello Daniel, I suggest you start with a new needle. Back off the needle thread tension and the bobbin thread tension to a minimum and see how it sews. If it does not ravel the thread, you can increase the tensions until you acquire the stitch you want.

Mar 26, 2014 | Juki DDL-8700 Industrial Straight Stitch...

1 Answer

I just brought home a Juki 8700. The needle went down and now I can't get it basck up. There is thread stuck in the bobbin. How do I get the bobbin casing off


Cut the thread above the needle eye and rock the handwheel back and forth sharply to cut the thread with the sewing hook. If that doesn't work pretty promptly, undo the needle clamp and turn the handwheel, which should raise the needle bar. Then get into the bobbin case area and try to remove the bobbin case, cutting any threads you can. Keep rocking the handwheel and trying to pull out the needle (pliers help!), and eventually everything will loosen up.

Next, clean and lubricate the area under the needle plate and the shuttle, and reassemble. Put in a brand new needle, right way around and fully up in the machine. Load the bobbin case with a well-wound bobbin, and rethread the top of the machine and you should be good to go.

Jan 28, 2014 | Juki DDL-8700

1 Answer

Juki ddl 8700 my machine was sewing fine I put in a heavier (jean) thread. Now it wont pick up the bobbin thread to sew at all? Help?


try changing the needle to one that will work with heavier thread
you may have to change the bobbin to heavier thread also
try adjusting the tension also

Sep 25, 2012 | Juki DDL-8700

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