Question about Sewing Machines

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Serger Machine My serger machine is running with a kind of hammering noise. I am suspecting that its timing is out. How can I fix that? The feed dogs on my serger will stick at varying levels and the hand wheel is extremely difficult to turn. Do you have suggestions for at home repair? Claudia

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  • Anonymous Mar 28, 2014

    give me more

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2 Answers

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  • Master
  • 3,422 Answers

HI,

If the timing is "out", you will not be able to form the chain stitch.......do a sample to see that you have all 4 or 3 threads involved in forming a complete stitch.........if you do, then it is not timing.

Posted on Jul 08, 2008

  • Priya darshan Jul 08, 2008

    While slowly moving the handwheel manually, rocking back and forth
    and/or full rotation.....remove all threads for this..., carefully
    observe:



    the two loopers should almost touch as they pass each other



    lower looper should almost touch the needle/s as it passes



    is lower looper needle guard colliding with either needle/s or upper looper



    are feed dogs colliding with needleplate



    are knife blades burred, check for smooth surface/s



    are loopers burred (gently run finger along looper up to &
    over the point, on all 4 surfaces they should be smooth & free of
    "lumps")



    there may also be a load of lint inside the base.......if you open
    this, be ready with vacuum and do it over newspaper with machine on its
    back.......use a small brush to assist.

  • Priya darshan Jul 08, 2008

    also,



    are your needles new and sharp



    if you have sewn through pins, things can go out of balance, or get jammed inside.



    Does the handwheel feel free all the way around, or is there a "tight"
    spot......where is everything (relative position of loopers, needle/s)
    when this happens, is anything obviously holding back the movement, or
    clicking as it passes....is it in the same place at each rotation ?



    Once you have a better idea of the specific area/s of concern, post
    back with lots of detail and maybe a photo, and we shall have another
    go at specific resolution........at this stage, there are too many
    variables to say straight off what it is causing the noise.(source:fixya's Bargainbox)

    Hope this helps..

    Please don't forget to rate the solution.



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  • Master
  • 2,712 Answers

Looks like you have a problem with either the wheel or the gears. I would recommend getting a professional to take a look, as we cant do any thing more in this forum..We can only offer you guidance..

Posted on Jun 28, 2008

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6ya6ya
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Posted on Jan 02, 2017

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Serger Machine


If the timing is "out", you will not be able to form the chain stitch.......do a sample to see that you have all 4 or 3 threads involved in forming a complete stitch.........if you do, then it is not timing.

I suspect there is a likely collision of parts, there are several possible contenders, tolerances for most are very small, 0 - 0.2mm, so a very good light and magnifying glass are useful, as is good hearing for when the click or clunk happens....

While slowly moving the handwheel manually, rocking back and forth and/or full rotation.....remove all threads for this..., carefully observe:

> the two loopers should almost touch as they pass each other

> lower looper should almost touch the needle/s as it passes

> is lower looper needle guard colliding with either needle/s or upper looper

> are feed dogs colliding with needleplate

> are knife blades burred, check for smooth surface/s

> are loopers burred (gently run finger along looper up to & over the point, on all 4 surfaces they should be smooth & free of "lumps")

there may also be a load of lint inside the base.......if you open this, be ready with vacuum and do it over newspaper with machine on its back.......use a small brush to assist.

also,

are your needles new and sharp

if you have sewn through pins, things can go out of balance, or get jammed inside.

Does the handwheel feel free all the way around, or is there a "tight" spot......where is everything (relative position of loopers, needle/s) when this happens, is anything obviously holding back the movement, or clicking as it passes....is it in the same place at each rotation ?

Once you have a better idea of the specific area/s of concern, post back with lots of detail and maybe a photo, and we shall have another go at specific resolution........at this stage, there are too many variables to say straight off what it is causing the noise.

Happy hunting......

Feb 29, 2008 | Sewing Machines

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