Juki DDL-8700 - Page 5 - Answered Questions & Fixed issues

hi there please send to me your e-mail, i have user manual but i don't know how to attache with my answer. best regards ASHRAF CAIRO - EGYPT [email protected]

hi there error E-6 means your control box is older than machine model DDL-8700/7. please tell me your control box model and i can help. best regards ASHRAF CAIRO - EGYPT [email protected]

Hi there regarding E005 , E004 at JUKI lock stitch machine means : E004: ===== synchronizer lower position sensor failure ( please check if socket is connect secure or lose connect - please check belt tension if lose please made more tight for belt tension. E005: synchronizer upper position sensor failure ( please check if socket is connect secure or lose connect - please check belt tension if lose please made more tight for belt tension. if still not solve please change synchronizer with new one. BEST REGARDS ASHRAF CAIRO - EGYPT [email protected]

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

just get a new one

Things to think about are whether or not you want a walking foot machine. Then if you do, decide if you want a needle feed walking foot. (the needle moves in an ovoid fashion, to help pull the material through the feed area. Juki is a wonderful manufacturer but there are quality machines out there that are just as nice. Check out leathermachineco.com and look at their cobra 18 or cobra 17. Call Steve and talk to him about what you are looking for. (great service)

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

Sounds like you've over oiled your machine. Take the bobbin out, strip the thread from it. wipe it down well... and re-wind the bobbin with new thread. Next time you oil after your day of sewing. Place a piece of absorbent scrap fabric under the presser foot to catch excess drips.

try a new needleeven try a different spool or cone of thread

hi there,
1- check V belt if there's more loose plase make it tight littel.
2- check timming cam for thread trimmer , sometimes lock after trim and E7 appear.
please advice me type for control box ? i can give more help if you have basic knowledge for electronc. just email me if you want any time.
best regards
ashraf abozid
[email protected]
CAIRO - EGYPT

Noise? have you oiled it lately?

hi thereis your machine automatic thread trimmer or manual?if automatic machine maybe movable knife is locked or there's some thread in between.if manual maybe hook finger ( stopper ) is have thread or there's thread inside hook and need to clean. also same at automatic.second. maybe needle bar is locked please try to loose the screw for needle par and check machine manually move or still locked.BEST REGARDSASHRAF ABOZIDCAIRO - EGYPT

hi there
u can find at www.juki.com under industerial sewing machine
u can download DDL 8700-7 instruction manual
best regardes
ashraf abozid
[email protected]

sounds like the machine could have a timing problemif the machine will not sew at all then it needs to be checkedbut if it will sew then try changing the needlerethread the machine top and bobbin make sure the bobbin is inserted correctly and turned the right waymake sure the thread has not come off the thread take up lever

the machine should be checked by a sewing machine technicanto see what wrong with the bobbin winder, the assembly may needto be replaced

Talk to Juki.. but I doubt they will give you one.

Welcome to the world of industrial machines. As you are discovering they are not like a home machine. Typically these machines have either a clutch motor or if you are lucky a servo motor. If you have a clutch motor there is typically a knob that allows you to slow it down. Or sometimes the pully needs to be replaced to "step down the speed" A digital servo motor is a bit more complicated and you'll need to find some instruction on how to use it. But they can be easier to control. I've provided a video of the servo motor I have and recommend. (I sew heavy leather) I have 1 pdf somewhere for a smart servo motor that might help. If yours is a servo, be careful because I got mine to run backwards once. lol Good luck

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

final answer about this questionhello allin case of normal machine you need to add many parts to convert from manual to auto thread trimmer ( need electronic motor with control - auto thread trimmer mechanic components - hook - feed dog - etc.... ) it's very difficult to change from normal to auto thread trimmer.best regardsashraf abozid

Call Juki and ask them what this code means.