How to Adjust Sewing Machine Thread Tension - Eliminate Bird's Nest

[@stoneblue1795]

Good demo, thanks for putting this out there Alex. Some of us need the basics (guys that sew).

[@Vridar]

Very nice instruction. I always learn.

[@AlexanderDyer]

Cool, Thanks.

[@brett.anthony]

thank you for these videos they're really helpful. is this a homemade table?

[@AlexanderDyer]

No, that table is factory made but I did take this table and alter it for another machine in this video: kzbin.info/www/bejne/qYXLmqiYbpqin5Y

[@robin8559]

Did you say if the foot should be up or down? when doing final adjustment.

[@AlexanderDyer]

Maybe not but down for any kind of sewing. Here is a newer video that may help too. kzbin.info/www/bejne/rpLbYYWKeNaMis0

[@lm0315]

Thanks for your vid. I have juki LU-563 but no owners manual. Got any videos on how to use that machine?

[@AlexanderDyer]

I have had a couple LU-562 machines that you could look at. Not sure they will serve your need. Manuals can be found online with a google search.

[@TheRantingCabbie]

I just make sure I have an idea what I'm sewing like 2 layers of denim compared to 3 layers of leather. I'll start by putting the presser bar down and holding the thread on each side of the dial and go back and forth and feel the tension. I guess if one was to get technical about it, you could say the dial resistance needs to 50% more than the thread pulling through the material.

[@SHELLY53100]

THANK YOU FOR SHARING!!!!!

[@AlexanderDyer]

YOU'RE WELCOME!!!

[@cancelik]

I have a problem, maybe you can give me an idea... I am thinking that my pfaff 418's take-up lever design is wrong. When the upper thread goes around the bucket (the thing that the bobbin case sits inside), the lever begins to rise before the thread reaches to the lowest point of the bucket. As you may already guess, this results in the thread getting to an unnecessary level of tension, getting teared and sometimes broken. What is ideal main shaft angle for lever bottom dead point?

[@AlexanderDyer]

You should probably check your timing, starting with needle bar height. See if you can get the service manual for specifics. That is where I would start.

[@cancelik]

This is a complicated mathematics problem and there is not a solution at manual. Subject is ''relation of needle and lever''. lever is ahead of needle. It begins to rise earlier than the thread reaches the farthest point of the basket. If you have a machine that shows ''top shaft angle'', Can you look and say the angle that when lever is at bottom dead point?

[@AlexanderDyer]

Sorry, I'm just a simple man who makes sewing machine videos in my basement. I have never used a protractor to figure angles on any of my machines or ever seen reference to such in any service engineer manuals that I have been through. You may be over-complicating this a bit. Did you try making the two adjustments that I have suggested? The angles and degrees of rotation are really built in to the machine by the engineers. By "timing" the machine you are making the bottom half of the machine work in time and relationship to the top of the machine. It is kinda baked in, really, try it.

[@michaeltexeira6185]

All this chatting,,,make sure the take up lever is on the flat spot on the first screw,,,in the arm shaft cam,,,or it will never work,,,or when the needle bar is at the highest point. The take up Lever is at the lowest point.

[@laurabarba3515]

thank you good demo.

[@AlexanderDyer]

You're welcome and thank you.