Question about Juki MO-644D Mechanical Sewing Machine
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Posted on Jan 02, 2017
Open the font of the serger and the instructions will be printed on the serger or on the door.
Raise the presser foot and set the tensions to zero when threading.
Turn the hand wheel so the upper looper (curved one) is at it's highest point and thread it first, and then the lower looper.
With some sergers you must thread in a certain sequence. This should be indicated in the instructions on the serger.
Set the tensions back to normal ( 4 - 6), lower the presser foot and run a length of stitching to see if the threads are knitted together as they should before you start serging your project.
Posted on Feb 19, 2010
You can download a free threading guide here - http://www.sewusa.com/Threading_Diagrams/Threading_Pages/Juki_Sewing_machine_threading/Juki_MO_644_Threading_Diagram.htm
The same site also sells manuals.
Have the thread antenna at it's highest position.
Set the tensions to zero.
Have the presser foot up while threading.
When you thread a serger for the first time, or if you are having a threading problem, use a different color thread for each guide. This can quickly indicate where the problem lies.
Once the stitch is satisfactory, change to the color you prefer - but this way is the easiest - cut the thread near the thread cone and tie off with the new thread. With the tensions at zero, slowing run the serger until the new thread appears. You will need to stop as the knots approach the needles and thread them by hand.
Do the tie-off before running out of thread and this will save a lot of time and stress.
Posted on Mar 02, 2010
SOURCE: JUKI MO 134 SERGER
How to Thread Juki MO-134 Serger from watching lady at Lyles. Turn upper blade up. Push in first then turn up.It makes threading easier. Blue Thread upper looper first. Pull thread through tension knob. Don'tjust lay it there. (She thought that is what I must have done) Orange Thread lower looper next. Pull thread through tension knob as inthreading upper looper. Adjust lower looper so it is right nextto upper looper so that their points are almost together and directly belowsewing needles. Lower looper will be in front of upper looper (I believe). With tread from upper looper pulledback, slightly lift lower looper above upper looper and thread. I think this isright. Pull thread back with other thread. Tension is the key. Remember that. Yellow: Thread left needle first.Remember tension. Pull thread through curled wire on left side of needle arm. Green: Thread right needle. Rememberabout tension. Pull thread through curled wire on right side of needle arm. b> Note: Before sewing turn the wheel tomake sure the stitches are going together correctly.
Posted on Nov 18, 2010
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