24
point there should be a barely perceptible pull on the
thread to indicate that there is a minimum tension
on the thread, which gradually increases with the
turn of the thumb nut to the right, providing a full
range of tensions from light to heavy within one revo-
lution of the thumb nut. If the pull is too strong for
a minimum tension, press in the numbered dial to dis-
engage the pin in the thumb nut from the dial and
reset the pin in one of the holes to the
left
of the pre-
vious setting. This resetting of the pin will produce
less tension at zero. Repeat this process until the
desired minimum tension is obtained. On the other
hand, should there be insufficient tension at zero,
press in the dial and reset the pin in one of the holes
to the
right
of the previous setting, repeating this
process until the desired minimum tension is
obtained.
If
Correct Stitching is Not Obtained:
If the bobbin thread tension has been disturbed,
or a correct stitch cannot be obtained without a
very heavy or very light needle thread tension, then
the following procedure is recommended:
Using No. 50 thread in the needle and on the bob-
bin, adjust the needle thread tension as instructed
above. Then turn the tension thumb nut to "3"
and, with two thicknesses of thin material in the
machine, adjust the
bobbin thread tension,
as
instructed on page 21, until the stitch is correctly
locked in the material as shown in Fig. 15.
A wide range of materials and threads can now be
accommodated without further adjustment of the
bobbin thread tension.
point there should be a barely perceptible
pull
on the
thread
to indicate that there is a minimum tension
on the thread, which gradually increases with the
turn
of the thumb nut to the right, providing a
full
range of tensions from light to heavy
within
one revo-
lution
of the thumb nut. If the
pull
is too strong for
a
minimum tension, press in the numbered
dial
to dis-
engage
the pin in the thumb nut from the
dial
and
reset the pin in one of the holes to the left of the pre-
vious setting.
This
resetting of the pin
will
produce
less
tension at zero. Repeat this
process
until
the
desired minimum tension is obtained. On the other
hand,
should there be insufficient tension at zero,
press in the
dial
and reset the pin in one of the holes
to the right of the previous setting, repeating this
process
until
the desired minimum tension is
obtained.
If
Correct
Stitching
is Not Obtained:
If
the
bobbin
thread tension has
been
disturbed,
or a correct stitch cannot be obtained without a
very
heavy or very light
needle
thread tension, then
the following
procedure
is
recommended:
Using
No. 50 thread in the
needle
and on the
bob-
bin,
adjust the
needle
thread tension as instructed
above.
Then
turn
the tension thumb nut to "3'^
and,
with
two thicknesses of
thin
material in the
machine, adjust the bobbin thread tension, as
instructed
on
page
21,
until
the stitch is correctly
locked in the material as shown in Fig. 15.
A
wide range of materials and threads can now be
accommodated
without further adjustment of the
bobbin
thread tension.
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