Question about Juki DDL-8700 High-speed Single Needle Straight-stitch w/ Table & Motor

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I have a juki DDL-8700, I believe that the tension is off, when I use the knee lift to move my fabric the tension does not return to normal. It leave the back off the fabric all loopy. Help me please!

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Did you get this answered?
Start by tipping your machine back and making sure that the "mushroom" that is in the middle of your oil pan, isn't stuck as it pops up and down when you press your leg on your knee press. Also that your knee press is working freely.

If neither was a problem, you will probably need a mechanic. If you want to try to look behind your tension on the front of your machine, use a soft brush to clean around your tension, being careful not to bend or break off the wire that is attached to the left side of the tension discs.

Do you work on either very fuzzy or plastic type materials? Small pieces of fuzzy fabric or thread can get inside the left end of the machine and slow down the release of the tension. Also, I have noticed that if I sew on too thick of fabric, like 2 layers of upholstery fabric with a self covered large cord in between, I have tension problems. Some of my larger cording feet aggravate the problem, especially if they are not a hinged foot.
Good Luck.

Posted on Dec 04, 2016

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Posted on Jan 02, 2017

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Have a Juki 8700 what type of needle do I need to sew leather? Also what kind of leather have a Juki 8700 what type of needle do I need to sew leather? Also what kind of leather foot do I need?foot do I...


hi there
regarding your inquiry about JUKI machine model DDL-8700 , first your machine type was what ? DDL-8700/SS ( for light to medium material , DDL-8700/HS ( for jeans and can use to sew light to medium lather, type of needle is DBx1, size for lather was 18 and you can use thread number #30 and #20. one more thing you want to change your presser foot to teflon presser foot ( please see attached photo for that presser foot you want to buy.
if need more information please ask
thanks and best regards
ASHRAF ABOZID
CAIRO - EGYPT
aabozid@hotmail.com

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Mar 07, 2015 | Juki DDL-8700

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How do I stop my Juki DDL-8700 machine from skipping stitches?


set up on quilting table? wheres the oil pan?? if your machine sews fine straight and skips on curves i think you are lifting the presser ft as you make the turn. theres nothing wrong with the machine. you could always change the needle which is always the first thing when you encounter a sewing problem.

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Knee lift won't engage on my Juki. Ddl-8700industrial straight stitch


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I have a juki DDL-8700, I've recently been having problems with it. When I use the knee lift for the pressure foot, the tension does not go back to normal. The machine could be work fine the when I use the...


Check the tension unit, when you use your knee press a pin should open the tension discs then return to normal, check for any fluff in the discs as well

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fine sand paper or adjust spring by pulling in or out could do the trick

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try changing the needle, make sure the needle is the correct one for the fabric being used
also adjust top thread tension

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1 Answer

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theres a set screw to the right of the tension device. maybe its loose. the screw is part of the machine body. don't look for it on the tension device. u have to get your head down in the to see it.

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