Question about Juki MO-644 Mechanical Sewing Machine
I think the right 'finger' on the plate is out too far. You may need to adjust your cutting blades further to the right until your cutting blades are in line with the right finger on the plate. Sometimes I have forgotten that I set my cutting blades for a rolled hem and then went back to regular tensions and plate but forgot to adjust my blades back to regular serging.
Posted on Nov 06, 2017
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Posted on Jan 02, 2017
DO NOT RESET THE TIMING!! The timing is off on maybe 1 in 100 modern Husqvarna machines. For the user to change the timing is turning a simple fix into a complicated and expensive fix.
If the top thread is "looping up on the bottom" then you have a problem with the tension on the top thread. Here is what to check:
1. Thread the machine all the way through the eye of the needle. Don't go under the foot.
2. Pull the tread to the side. While pulling, lower the presser foot. You should see the needle bend as the thread gets tight. If not, you have no tension on the top thread.
3. With the bobbin in the case, hold the needle thread and turn the handwheel to bring the thread up. Watch through the cover to see if the thread passes over the bobbin from left to right. When it gets to the right side, the take up lever should pull the slack out and the thread should be pulled up. If it comes part way across but does not pull up, make sure the thread is in the take up lever. If you never see the thread, remove the bobbin case and turn the hand wheel. You should be able to see the hook pass behind the needle while the eye is still below the level of the hook. If the eye is above the hook as it passes the needle from right to left, then and only then consider timing the machine. If the hook passes above the eye but doesn't catch the thread (bobbin case out, needle plate on, presser foot down) you probably have a problem with your needle. Put in a new needle and make sure that the flat side is to the back.
99% of the time when a Husqvarna is not picking up the bobbin thread, something simple has been overlooked. Your symptom of looping on the back of the fabric indicate either a threading or tension issue in most cases, not timing.
Posted on Sep 14, 2008
I had same problem, the manual says to use left twist thread, it made difference, and thread made in germany is left twist
Posted on Sep 28, 2008
Several things may be causing this.
First, make sure that the wire rack is DIRECTLY above the cones of thread (it may be backward). The thread must come straight up from the cone as it pulls off. Not coming straight up will cause a wavy stitch because of the thread dragging on one side of the cone.
Make sure that the threads are fully pulled into the tensioners, not riding on top of the discs.
Inspect the needle plate and ensure that the stitch forming pins and or fingers are intact.
Posted on Aug 18, 2009
Testimonial: "Thank you! I will take a look at all these suggestions...this is a big help."
SOURCE: problem with thread tension.
Ok, please don't take this the wrong way, but I only mention it because this happened to me: are you sure you're threading the machine correctly? I've had mine for two years and finally realized the other day that I was passing the thread behind the tension disk when it should have been in FRONT of the tension disk. I didn't have tension problems all the time when it was misthreaded, which is why I guess I never realized I was doing it incorrectly. One other possibility: if the thread spool is vertical, trying standing it up (you may need to rig something with a coffee cup and some safety pins taped to the machine, but most machines provide both vertical and horizontal spool capabilities); if it's horizontal, try moving it to a vertical position. Some threads don't care which direction they are; others are VERY finicky about this.
Posted on Oct 01, 2009
Testimonial: "thanks, I did have it threaded wrong. It was the bobbin...I didn't have the thread under the spring."
SOURCE: Feed Dogs on Janome 1600P
I recently purchased a Janome 1600P-DB and in order to do free motion quilting I had to cover the feed dogs with an index card. I also cut a small section out of the card to allow for the thread and needle to move freely. Standard tape was used.
Posted on Oct 21, 2009
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