SINGER WHA-1 - Manual (Page 5)

Fig. 3
Fig. 4
NOTE: This machine uses standard 15
class bobbins available at all sewing
stores. The bobbin can be wound
while machine is in operation by not
releasing the stop motion knob as de­
scribed in below paragraph. Therefore
needle and bobbin winder will operate
at the same time.
Holding the balance wheel with the left hand,
turn the stop motion knob toward you. This
will permit tne balance wheel to turn freely
while the needle bar remains motionless.
Place a spool of thread on the spool (A).
Pass the thread through the tension disc (B)
at right corner of the base of the machine.
Now wind the end of the thread around an
empyt bobbin seven or eight times and place
the threaded bobbin on the spindle ‘(C) of
t^’e bobbin winder. Press the bobbin into
the spindle with the left hand, making sure
that the PIN on the spindle fits into the
SLOT in the bobbin. Push the bobbin winder
lever (D) down until the small rubber wheel
presses against the hub of the balance wheel
and the clasp (E} falls between the sides of
the bobbin, holding it in position. Turn the
balance wheel toward you and proceed to
operate the rheostat control, as in sewing,
when the bobbin is full, it will release auto­
matically and stop turning. Break off the
thread and detach the bobbin from the spindle.
Hold balance wheel firmly with left hand and
with right hand turn the stop motion knob
away from you until the machine is tight and
the needle bar moves with the turning of
the balance wheel.