To
insert
the
bobbin
case
into
the
machine,
rotate
the
balance
wheel
until
the
needle
is
at
its
highest
point.
Lift
the
latch
and
place
the
bobbin
case
on
center
stud
s
(see
ill.),
making
sure
its
slot
(white
arrow)
points
up.
Release
the
latch
and
press
against
the
bobbin
case
until
you
hear
it
snap
into
place.
9
Pfaff
76
Pfaff
77
