Question about Juki MO-644D Mechanical Sewing Machine
Cannot find a model number and need the bobbin hook assembly
Posted by Anonymous on
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Posted on Jan 02, 2017
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
Posted on Dec 15, 2008
It can be many things but first make sure the needle is in correctly, follow the manual to be sure, if it still does not pick up the bobbin thread you may want to bring it to a repairman to see if it is out of timing.
Posted on Jul 07, 2009
so many different versions to disengage the drive, but all are located on the right hand side of the machine on the part that allows you to rotate the sewing mechanism by hand. there is likely a button or that part will pull outwards
Posted on Aug 16, 2009
Testimonial: "thank you so much there is not a button so it must pull out i will try it tomorrow"
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