9.
Drawing
Up
the
Bobbin
Thread
Hold the end of needle thread and turn the balance wheel toward you until the needle
moves down and up again. Lightly pull the needle thread to draw the bobbin thread up
through the
needle
hole (Fig. 14). Lay both
threads
back under the
presser
foot.
Always
turn the balance wheel toward you until the take-up lever is at its highest
point
before
you
begin
and
after
you
have
completed
a
seam.
Failure to observe this rule may cause the thread to jam In the hook raceway or to slip
out
of
the
needle
eye. If
the
above
rule is
observed,
there
is no
need
to hold both
threads
when you
begin
to sew.
10.
Regulating
the
Thread
Tension
The neat appearance of the finished seam and its durability greatly depend on the
correct
regulation
of
tensions.
The
tensions
are
correctly
balanced
if
the
needle
and
bobbin
threads
interlock in
the
center
of
the
material,
as
shown
in Fig. 16.
Fig. 14
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