White 1955 - LOWER TENSION ADJUSTMENT

LOWER
TENSION
ADJUSTMENT
If your
machine
skips
stitches
or
loops
stitches,
it
may
require
a tension
adjustment.
To
check
bobbin
thread
ten
sion,
follow
these
steps:
®
Push
latches
of the
shuttle
race
cover
to
the outside,
as
shown
in figure
ETD.
©
Remove
shuttle
cover
as
shown
in figure
©.
©
Remove
the
shuttle
as
shown
in
figure
©.
@
Suspend
bobbin,
bobbin
case,
and
shuttle
all
together
by
thread
as
illustrated
in
figure
®.
When
jerking
the thread
slightly,
all
of them
should
slide
down
with light
resis
tance.
If they
do
not
slide
down
with
a
slight
jerk
of
the
thread,
the
bobbin
case
tension
is too
tight.
If
they
slide
down
too
easily,
the bobbin
case
tension
is
too loose.
See
following
page
for adjustment ot
the
bobbin
case.
Once
the
bobbin
case
is correclly
adjusted, it is
easy
to use
the
upper
tension
to bal
ance
the
stitches
as
shown
on page
12.
x
Shuttle
y
Bobbin
ascrew
using
small
screwdriver.
I
-
g,
4d
English
Español
Page49
Section
7
©
AJUSTE DE
TENSION DE
LA
BOBINA
Si Ia
máquina
pierde
puntos
o
hace
nudos
por
el revés
en Ia
costura
no es
problema
de
Ia
máquina,
sino
de
Ia tensiOn.
Para
verificar
Ia
tensiOn
de
Ia
bobina,
se
debe
tomar
ésta
y
el
cangrejo
como
se
indica
en
el
dibujo,
si
Ia tensiOn
es cor
recta
se desplazarán
lenta
mente.
Después
ajustar
Ia
tensiOn
superior
con
los
nOmero
4,
5,
o
6.
Girar
los
seguros
hacia
afuera.
©
Quitar
Ia
tapa
del
cangrejo
©
Quitar
el cangrejo.
®
x Cancrejo
y
Carrete
y
bobina
El
cangrejo
y
Ia
bobina
se
desplazarán lentamente.
30g
j
y