we are new to serging and we recently bought our first serger, an old broth
we are having an issue with one of the tension knobs and can't seem to find
any information on it really, but i stumbled across this group in my searc
h and thought i would try reaching out.
the overlooper tension knob doesn't seem to be working... when we turn all
the other tension knobs they go from feeling very loose to pretty snug, but
when we turn this one it just seems to go from loose to loose. is it possi
ble to adjust this, or do we need a new tension mechanism, or...?
ashley and brent
I don't know your machine, I hope our Ron Anderson jumps in here.
In the mean time I will offer a few suggestions:
1. Maybe you have already done this, but if not, give the serger a
thorough cleaning (and lubing if the manual calls for it). When you
clean it DO NOT USE CANNED AIR , that just blows lint into various
nooks and crannies where it will gum up the works. Use a brush and
small vacuum. Use dental floss to clean between the tension disks,
running the floss back and forth several times, replacing the floss
as it accumulates lint.
2. Thread the needle(s) and loopers FROM SCRATCH with DIFFERENT
COLORED THREAD and sew a test. Refer to the threading instructions
in your manual, and follow them EXACTLY. Sequence matters in
threading a serger. Using different thread colors will help you to
determine which thread (if any) is not properly tensioned. Thread
with the presser foot UP, then lower the presser foot and pull on
each one to see if each thread is tensioned. (Tension is not
applied to any of the threads until the presser foot is in the
3. Then, ONLY IF YOU HAVE A SERVICE MANUAL, because it is quite
complicated, take the tension apparatus apart, and see if you can
determine how to tighten it. It may have loosened over time, in
which case perhaps you can adjust it. Or it may just be worn out, in
which case you will need parts.
There used to be an online "tension repair" link for *sewing
but I just
tested it and it's 404. ;-( However, I don't know if it would help
much with serger tension. I do take my Bernette MO2-3-4 tension
apart from time to time when the tenrsion seems off, but it's an
older fairly uncomplicated serger.
Perhaps you can find something here which will help: