20 Most Recent Juki DDL-8700 - Page 7 Questions & Answers

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

Call Juki and ask them what this code means.

HELLO THEREregarding error E3,E4 and E5 that's means V belt has slipped so stop position arregular.please sheck tension for v belt. other ways i think sinchronizer need to clean or replace it.best regardsashraf abozidCairo - EGYPT[email protected]

Call your repair guy or take it in for cleaning and servicing.

LOLYou can take it in for cleaning and oiling. The hand wheel sticking is a symptom of it needing service.

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

Your best bet is sending out for service. Jimmy

I would send it out for service. Jimmy

HI THERE
1- CAN YOU PLEASE TELL ME MODEL OF CONTROL BOX?
2- IF SC500 OR SC510 MODEL SO E003 AND E004 MEANS
( YOU MUST MAKE SURE JACK FOR WHITE RESISTANCE BACK ON THE HEAD CONNET TO THE CONTROL TO DEFFINE THE MODEL WITH CONTROL.
( CHECK THE SYNCHRONIZER (CN31 ) FOR LOOSE CONNECTION ANS DISCONNECTION.
( SYNCHRONIZER LOWER POSITION SENSOR FAILURE YOU NEED TO CHECK WHETHER THE SYNCHRONIZER CORD HAS BROKEN OR SINCHRONIZER IS DAMGED.
IF YOU NEED MORE HELP PLEASE EMAIL ME AT ( [email protected] )
best regards
ashraf abozid
EGYPT - CAIRO

Check for rough spots in the thread travel....and use a new needle

So many machines you would be best at aution as one complete lot.