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Posted by robb on August 13, 2009, 12:05 pm
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> Some machines have bobbins made to be adjusted and some warn
against
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> it. I have several bobbin cases I bought for my Brother 1500
and have
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> adjusted them for different threads. I recently invested in a
Towa
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> bobbin tension gauge and have found that the perfect bobbin
tension
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> for this machine is 225.
> On Thu, 13 Aug 2009 00:16:05 GMT, Joanna
> wrote:
> >Yup, had it happen years ago on an old brother. Tried to make
> >adjustments and the screw went flying. Put it back together
but it was
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> >never the same. After a few weeks of constant adjustments I
decided to
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> >buy a new one. Never had any troubles after that
As a tool junkie i may invest in one of those Towa bobbin tension
meter devices.
But before i learned of the Towa ...
Occasionally i would use the 'Duracell AA' or 'Energizer AA'
tension gauge with a couple of US Liberty/Jeferson $0.05 to fine
tune the tension values. The AAs are about 25 grams each and the
Jeferson Nickel is about 5 grams. Some of the service manuals i
own have the bobbin tension spec. between 20 - 40 grams.
With the *weights* taped to the thread i could adjust the screw
until the weights fell properly.
Maybe not as easy to use or as accurate as the Towa but it works.
YMMV
robb
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