Question about Juki America, Inc Juki MO-644D 2/3/4 Thread Overlock Serger JUKI010

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Is there any way to purposefully slow down a serger in a sewing factory

It goes pretty fast then all at once it slows down is there a switch the mechanic uses to do this

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Check the pulley on your motor. Sometimes thread gets wrapped around the pulley and can cause this. If this is the problem, take the belt off the pulley, cut all the thread away and put the belt back on.

Also make sure that your belt doesn't have any oil or grease on it that is causing it to slip when it gets warm.

How is the tension on your belt? It should be adjusted tight enough to run the machine but not so tight you overheat the motor. When it is not moving, hold both pieces of the belt half way between the machine and the motor and try to force them together. If they can touch, the belt is too loose,and if you can't get any 'give' to try and get the two to touch, the belt is too tight. It should be springy.

Good Luck :)

Posted on Dec 02, 2018

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Posted on Jan 02, 2017

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Baby lock serger motor slows down after sewing 20 minutes. Why?


Call your local service shop. Baby Locks in closets for years usually have this problem The manual recommends annual maintenance by a pro, and they will oil the internal lobes of the feed dog apparatus. It cannot be oiled from the outside, nor with covers off, but must be taken apart. If those lobes lose the oil and heat up you will feel "surging" then slowing repeatedly -- fast then slow then fast etc -- until the lobes over heat and sort of weld themselves to that small barrel looking case. So a Baby Lock can sew, then temporarily be sluggish then later slow till sluggish; and at worst, seem to be doing everything right BUT not advancing the cloth -- that's when the worst damage is done and professional repair is needed. In PA might cost $150 to fix. $70 in parts; $80 in labor (2012 prices)
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Related Tags: slow sewing stops lock not sewing Print Email Flag Problem with Baby Lock Eclipse Serger I have a Baby Lock Serger BL-90. When it has been on for a while and I'm sewing, it starts t


Perhaps was same as my problem.

Call your local service shop. Baby Locks in closets for years often have this problem The manual recommends annual maintenance by a pro, and they will oil the internal lobes of the feed dog apparatus. It cannot be oiled from the outside, nor with covers off, but must be taken apart. If those lobes lose the oil and heat up you will feel "surging" then slowing repeatedly -- fast then slow then fast etc -- until the lobes over heat and sort of weld themselves to that small barrel looking case. So a Baby Lock can sew, then temporarily be sluggish then later slow till sluggish; and at worst, seem to be doing everything right BUT not advancing the cloth -- that's when the worst damage is done and professional repair is needed. In PA might cost $150 to fix. $70 in parts; $80 in labor (2012 prices)
Been there, done that.

Jul 02, 2012 | Baby Lock Eclipse Serger

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