Again: JUKI DDL 5550N Manuals
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: skip stitch
The three most obvious causes (other than that of the machine possibly being slightly out of time) are:
1) Too small of a needle size - increase the size.
2) A needle that has a flaw / defect - change the needle.
3) Needle not inserted correctly, either not pushed all the way up into the needle bar, or not installed facing the correct place. On this machine, the small "scarf" in the needle (an indent just above the eye) shouldface the right side of the machine.
SOURCE: Juki Sewing machine DDL-555. After 4-5 hours use feed not moving
Sounds like as the machine builds up friction from extended use, some vital part is lacking lubrication and is seizing up. A good service person will remove ALL of the covers and thoroughly air clean and oil every moving part. Sometimes these dry points are hard to find and patience is required.
You can get a sewing machine oiler with a long applicator and put a drop of oil on anything that moves, but over oiling can be messy.
SOURCE: Juki DDL-5530 Sewing Machine Manual
go to www.juki.com.jp login industrial sewing machine and you can doenload manual for juki machine
SOURCE: how to fix timing on a juki ddl-555
Hi, if your ddl-555 sewing machine the needle doesn't grab the string from the top and bottom; and it can't sew the fabric. Do you know what to do/
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