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Resetting Timing Babylock BL3-408 Serger

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Seams_Sew

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Mar 5, 2011, 4:07:11 AM3/5/11
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Hello, all. I bought a Babylock serger on craigslist and it worked
perfectly. Unfortunately, I was rough on it and it jammed. I couldn't even
get the fabric out to look at it. My upper looper broke so I bought a new
one. It still kept getting caught on the lower looper so I moved it, too.
Obviously, I need to reset the timing. I have been at it for hours. It's
been almost three months since I put the new upper looper on. First, I
couldn't get the subsidiary looper into the hole of the upper looper. Now
I have the upper and subsidiary loopers in synch and I thought the lower
looper was in synch as well because it will form a chain... until I put
fabric in. Then, it only knots a couple of times every few inches then
goes back to forming chains without fabric again. The chain looks... odd.
Like the loops are too big from one thread. I'm at wits end. I don't know
if I should keep fiddling with the timing or if I should try the tention
settings. There are no numbers on tention settings so this is very
difficult since I'm completely self taught on this thing. Thanks so much
to anyone who can help!


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Wayne Hines

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Mar 5, 2011, 5:26:41 AM3/5/11
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On Sat, 05 Mar 2011 09:07:11 +0000, Seams_Sew wrote:

> Hello, all. I bought a Babylock serger on craigslist and it worked
> perfectly. Unfortunately, I was rough on it and it jammed. I couldn't
> even get the fabric out to look at it. My upper looper broke so I bought
> a new one. It still kept getting caught on the lower looper so I moved
> it, too.

Probably shouldn't have done that. You may have only needed to adjust the
upper looper to increase its distance from the lower looper.

> Obviously, I need to reset the timing. I have been at it for
> hours. It's been almost three months since I put the new upper looper
> on. First, I couldn't get the subsidiary looper into the hole of the
> upper looper. Now I have the upper and subsidiary loopers in synch and I
> thought the lower looper was in synch as well because it will form a
> chain... until I put fabric in. Then, it only knots a couple of times
> every few inches then goes back to forming chains without fabric again.
> The chain looks... odd. Like the loops are too big from one thread. I'm
> at wits end. I don't know if I should keep fiddling with the timing or
> if I should try the tention settings. There are no numbers on tention
> settings so this is very difficult since I'm completely self taught on
> this thing. Thanks so much to anyone who can help!

Your best bet is to take it to a service technician. If you have a sewing
machine timing gauge, you can use it to set proper timing between the
lower looper and left needle by adjusting the position of the cam that
drives the lower looper. That will give you a good starting point for
adjusting the upper looper. There are probably burrs on the lower looper,
needle plate and needle guard(s) that will need to be found and smoothed
before it will stitch properly.

gwh

--
All the truth in the world adds up to one big lie. - Bob Dylan

Wayne Hines

unread,
Mar 5, 2011, 5:26:40 AM3/5/11
to
On Sat, 05 Mar 2011 09:07:11 +0000, Seams_Sew wrote:

> Hello, all. I bought a Babylock serger on craigslist and it worked
> perfectly. Unfortunately, I was rough on it and it jammed. I couldn't
> even get the fabric out to look at it. My upper looper broke so I bought
> a new one. It still kept getting caught on the lower looper so I moved
> it, too.

Probably shouldn't have done that. You may have only needed to adjust the

upper looper to increase its distance from the lower looper.

> Obviously, I need to reset the timing. I have been at it for


> hours. It's been almost three months since I put the new upper looper
> on. First, I couldn't get the subsidiary looper into the hole of the
> upper looper. Now I have the upper and subsidiary loopers in synch and I
> thought the lower looper was in synch as well because it will form a
> chain... until I put fabric in. Then, it only knots a couple of times
> every few inches then goes back to forming chains without fabric again.
> The chain looks... odd. Like the loops are too big from one thread. I'm
> at wits end. I don't know if I should keep fiddling with the timing or
> if I should try the tention settings. There are no numbers on tention
> settings so this is very difficult since I'm completely self taught on
> this thing. Thanks so much to anyone who can help!

IMS

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Mar 5, 2011, 12:59:46 PM3/5/11
to
On Sat, 05 Mar 2011 09:07:11 +0000,
seamssew_at_h...@foo.com (Seams_Sew) wrote:

>Hello, all. I bought a Babylock serger on craigslist and it worked
>perfectly. Unfortunately, I was rough on it and it jammed. I couldn't even
>get the fabric out to look at it. My upper looper broke so I bought a new
>one. It still kept getting caught on the lower looper so I moved it, too.
>Obviously, I need to reset the timing. I have been at it for hours. It's
>been almost three months since I put the new upper looper on. First, I
>couldn't get the subsidiary looper into the hole of the upper looper. Now
>I have the upper and subsidiary loopers in synch and I thought the lower
>looper was in synch as well because it will form a chain... until I put
>fabric in. Then, it only knots a couple of times every few inches then
>goes back to forming chains without fabric again. The chain looks... odd.
>Like the loops are too big from one thread. I'm at wits end. I don't know
>if I should keep fiddling with the timing or if I should try the tention
>settings. There are no numbers on tention settings so this is very
>difficult since I'm completely self taught on this thing. Thanks so much
>to anyone who can help!

This web site explains looper timing.

http://www.sergerparts.com/index.html

-Irene

BEI Design

unread,
Mar 5, 2011, 1:28:51 PM3/5/11
to
IMS wrote:

> This web site explains looper timing.
>
> http://www.sergerparts.com/index.html

Nice site, bookmarked. Thanks.

--
Beverly
http://ickes.us/default.aspx


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