Singer 5811 - Page 27

Posibles
averias
Fault-finding
Always
start
by
checking
the
needle
An
important
part
which
needs
to
be
changed
from
time
to
time
is
the
needle.
Always
start
with
a
new
needle
as
soon
as
you
discover
that
a
seam
is
not
what
you
expected.
Test
sew
on
a
scrap
of
the
fabric
you
are
sewing.
Check
that
you
have
chosen
The
correct
needle
and
see
that
it
is
correctly
inserted,
see
page
10.
Unattractive
stitches
The
thread
tension
is
not
correct.
See
page
11
Make
sure
that
the
thread
is not
catching.
Certain
thread
spools
ore
unsuitable
for
spooling
from
a
horizontal
spool
pin.
Try
in
stead
wiTh
the
vertical
spool
pin.
The
machine
may
be
incorrectly
threaded.
The
correct
threading
is
shown
on
page
8.
Wrong
lower
thread,
It
should
be
of
the
same
thickness
as
the
upper
thread,
The
needle
breaks
You
may
have
helped
the
machine
to
feed
by
oulling
The
fabric.
The
needle
can
strike
against
the
stitch
plate
and
break.
The
upper
thread
breaks
Check
the
thread
spool
to
see
that
it
has
not
caught
in
any
way.
The
needle
eye
may
have
sharp
edges
which
cut
the
thread
If
so,
change
the
nee
dle,
See
page
10.
The
upper
thread
is
incorrectly
threaded
See
page
8.
The
upper
thread
may
have
too
much
ten
sion.
Refer
to
page
11.
The
thread
is
knofted.
The
hole
in
the
stitch
plate
may
be
chipped
and
have
sharp
edges.
Slight
damage
to
the
stitch
plate
can
possibly
be
polished
or
filed
butwe
recommend
that
you
replace
it
The
lower
thread
breaks
The
lower
thread
may
be
incorrectly
thread
ed
See
page
10.
The
stitch
plate
hole
is
damaged.
See
“Up
per
thread
breaks”.
Irregular
bobbin
winding
This
may
be
due
to
poor
quality
thread.
When
sewing
with
cofton
thread,
increase
the
thread
tension
The
machine
is
not
correctly
threaded
for
bobbin
winding.
See
page
9
Controlar
Ia
aguja
La
parte
mOs
importe
que
hay
que
cambiar
de
vez
en
cuando
es
Ia aguja.
Por
lo
tanto,
cuando
alguna
vez
una
costura
no
sea
so
tisfactoria,
comprobar
con
una
aguja
nue
va
en
Un
trozo
de
tela.
Controlar
que
Se
haya
elegido
a
agujo
correcta
y
asegurar
se
de
que
a
aguja
sea
introducida
hasta
su
tope
y
que
el
tornillo
estO
apretado
correc
tamente,
véase
Ia
pdg
10.
Puntadas
falsas
La
tensiOn
del
hilo
no
es
correcta,
véase
Ia
pOg
11.
AsegUrarse
que
el
hilo
no
estO
bloqueado.
Ciertos
porta-carretes
no
son
adecuados
para
el
devanado
desde
porta-carretes
horizontales.
Polo
tanto,
comprobar
con
un
porta-carre
te
vertical
El
enhebrado
noes
correcto,
verificar
segUn
Ia p6g.
8.
Hilo
inferior
inadecuado.
Este
debe
ser
igual
que
el
superior.
Rotura
de
Ia
aguja
Nunca
se
debe
tirar
de
Ia
tela
durante
el
cosido,
porque
a
aguja
se
puede
romper
al
tropezar
contra
Ia
placa
de
aguja.
Rotura
del
hiIo
superior
Examinar
el
carrete
del
hilo
y
verificar
si
el
hilo
se
ha
enganchado
en
alguna
parte.
Podria
ser
que
el
agujero
de
Ia
aguja
no
estuviera
Ia
suficienie
bien
pulido.
Cambiar
Ia
aguja,
véase
Ia
p6g.
10.
El
hilo
superior
estO
mal
enhebrado,
vOase
Ia
p6g.
8.
La
tensiOn
del
hilo
superior
es
demasiado
fuerte.
Ver
Ia
“TensiOn
del
hilo”,
p6g.
11.
El
hilo
tiene
nudos.
El
agujero
de
Ia
placa
de
Ia
aguja
se
ha
dañado
por
los
continuos
pinchazos
de
Ia
aguja.
Hay
que
pulir
el
agujero,
pero
Ia
me
jar
es
cambiar
Ia placa
de
aguja.
Rotura
del
hilo
inferior
El
hilo
inferior
está
mal
enhebrado,
ver
Ia
pág.
10
Se
ha
dañado
el
agujero
de
Ia placa
de
aguja,
ver
arriba.
Bobinado
irregular
del
hilo
Puede
ser
a
causa
de
Ia
dificiente
calidad
del
hilo.
29