Viking 2780 - Page 8

For
sewing,
an
upper
and
lower
thread
is necessary.
The
lower
thread
runs
on
a
small bobbin
in
the
bobbin
case.
Open
the
latch
of
the
bobbin
case
and
place
it
on
the
shaft
of
the
shuttle
hook.
It
is
very
essential
that
the
bobbin
case
snaps
in,
failing this
the
bobbin woud
be
misplaced.
With
compact
socket
and
flatbed
with
central
hook:
For
removing the
bobbin
case,
slightly lift
the
flatbed
model. On
the
corn
pact
socket
machine,
the
edge
of
the
socket
has
to
be
lifted.
Turn
flywheel, until
the
needle
is
in
its
highest
position.
Take
off
bobbin
case
on
the
small
flap
by
means
of
thumb
and
forefinger
of
the
left
hand.
Fill
the
bobbin.
Afterwards
place
the
bobbin
into
the
bobbin
case
again
by
taking
care
that
the
thread
runs
strictly in
direction
of
the
arrow. Threading
into
the
slot,
pull
it below the
tension
spring
and
let
it
come
out
approx.
4
inches.
With
freearm
sewing
machine:
For
removing
the
bobbin
case
take
off
push-on-table
and
open
the
small
flap
on
the
freearm (see
photo).
With
flatbed
sewing
machine
with
double
rotating
hook:
lift
the
machine.
Turn
flywheel
until
the
needle
is
in
its
highest
position.
Take
off
bobbin
case
on
the
small
flap
by
means
of
thumb
and
forefinger
of
the
left
hand.
Fill
bobbin.
Take
care
when
placing
the
boboin
into
the
bobbin
case
that
the
thread
runs
in
direction
of
the
arrow.
Threading
into
the
slot
below
the
tension
spring,
until
it
is
going
into
the
opening
(arrow).
7
Removing
and
inserting
the
bobbincase
Threading
of
lower
thread
b