Brother International VX-940 Users Manual - English - Page 20

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PERFECT STITCHING ilk Tension of upper and lower threads should be equal, just sufficiently strong to lock both threads in material. Perfect stitching appears flat on the material with no puckering of material. INCORRECT STITCH (A) ilk The upper thread lies on the surface of the material by pulling the lower thread up as shown. This is caused by tight tension on the upper thread or loose tension on the lower thread. To correct this, turn the upper thread tension dial to a lower number. When perfect stitch cannot be obtained by ti only upper thread tension dial, adjust the bobbin tension accordingly. . INCORRECT STITCH (B) The lower thread lies on the under surface of the material by pulling upper thread down as shown. This is caused by loose tension on the upper thread or tight tension on the lower thread. To correct this, turn the upper thread tension dial to a higher number. If perfect stitching cannot be obtained by changing upper thread tension, adjust the bobbin tension. NOTE: It is recommended that test samples be made before sewing. -18-

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PERFECT
STITCHING
Tension
of
upper
and
lower
threads
should
be
equal,
just
sufficiently
strong
to
lock
both
threads
in
material.
Perfect
stitching
appears
flat
on
the
material
with
no
puckering
of
material.
ilk
INCORRECT
STITCH
(A)
The
upper
thread
lies
on
the
surface
of
the
material
by
pulling
the
lower
thread
up
as
shown.
This
is
caused
by
tight
tension
on
the upper
thread
or
loose
tension
on
the
lower
thread.
ilk
ti
INCORRECT
STITCH
(B)
To
correct
this,
turn
the
upper
thread
tension
dial
to
a
lower
number.
When
perfect
stitch
cannot
be
obtained
by
only
upper
thread
tension
dial,
adjust
the
bobbin
tension
accordingly.
.
The
lower
thread
lies
on
the
under
surface
of
the
material
by
pulling
upper
thread
down
as
shown.
This
is
caused
by
loose
tension
on
the
upper
thread
or
tight
tension
on
the
lower
thread.
To
correct
this,
turn
the
upper
thread
tension
dial
to
a
higher
number.
If
perfect
stitching
cannot
be
obtained
by
changing
upper
thread
tension,
adjust
the
bobbin
tension.
NOTE:
It
is
recommended
that
test
samples
be
made
before
sewing.
—18—