Juki DDL-8700 bobbin winder not winding thread tightly

SOURCE: juki ddl-227 industrial machine

Before all else. Turn off machine!
(1) break screws on the hook loose.
(2) tighten one back up very skightly, one you can reach when the needle bar is at its lowest position.
(3) lower needle bar to its lowest position.
(4) loosen the screw just tightened.
(5) position the tip of the hook behind the needle hole. the tip should be as close to the needle hole as possible without actually touching the needle
(6) tighten screws
(7) slowly hand turn the machine (depress the foot pedal to disengage clutch brake on motor) several revolutions to make sure the needle doesn't hit anything on the hook.
(8) if it passes this test, try on a scrap of fabric

SOURCE: I just bought a used juki DDL 8500 industrial

I just bought the same machine and mine came with a photocopied manual. There is indeed a bobbin winder on the side, there's a flat section on the side of the bobbin winder closest to you, if you push that forward it connects a wheel attached to a bobbin spoke, to the belt that runs between the machine and the motor. To wind the bobbin, put the bobbin on sideways onto the axis of the wheel that is on the inside of the machine, and push the bobbin winder forward.

SOURCE: I recently purchased a Juki

perhaps you have the wrong needle or its not in the proper position?

SOURCE: When using the automatic thread trimmer on my juki

YOU MAY SEE THREAD HANDLER HAVE SOME PROBLEM. THERE MAY BE SOME THREAD TON IN IT

Chris DeWitt

• 86 Answers
• Posted on Mar 12, 2011

SOURCE: I just received my Juki

There should be a bobbin winding device next too and slighlty behind the drive belt.

Should be like this bobbin winder.