Performance checklist, Lista de verificaciones – SINGER 7011 User Manual
Page 72
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Performance checklist
When sewing difficulties occur, look back
through this manual to make sure you are
correctly following the instructions. If you
still have a problem, the reminders below
may help you to correct it.
Needle Does Not Move
Is
machine
connected
to
electrical
supply?
is the power and light switch on?
Is controller connected?
Is the handwheel engaged for bobbin
winding?
Needle Moves But Stitch Is Not
Formed
Is needle defective?
is needle fully inserted into needle clamp?
Are
bobbin
and
needle
correctly
threaded?
Is bobbin correctly inserted into bobbin
case?
Needle Breaks
Is needle straight and sharp?
Is needle correct size?
Is needle fully inserted into needle clamp?
Are controls properly set?
Are accessories correct for application?
Bobbin Winding Difficulties
Is thread unwinding freely from spool?
Is bobbin winder engaged?
Is thread end securely held at start of
wind?
Is thread hanging up on the slit on the
thread spool?
Upper Thread Breaks
Is machine properly threaded?
Is thread freely unwinding from spool?
Is proper spool cap being used?
Is needle correct size for thread?
Is upper thread tension too tight?.
Is bobbin case properly inserted?
Is bobbin rim free of nicks?
Lower Thread Breaks
Is bobbin correctly wound?
Is bobbin correctly inserted into bobbin
case?
Is bobbin case correctly threaded?
Is thread hanging up on the slit on the
thread spool?
Skipped Stitches
Is machine properly threaded?
Is fabric firmly held down?
Is needle correct style and size?
Is needle straight and sharp?
Fabric Does Not Move Properiy
Under Presser Foot
Is presser foot correctly attached to
machine?
Is presser foot lowered?
Is stitch length correctly set?
Lista de verificaciones
Cuando aparezcan dificultades al coser,
consulte este manual para asegurarse de
que sigue correctamente las instruc
ciones. Si aún así continuasen los
problemas, los recordatorios siguientes
pueden ayudarla para corregirlos.
La aguja no se mueve
¿Está la máquina conectada a la red?
¿Está abierto el botón de fuerza y luz?
¿Está conectado el regulador?
¿Está conectado el devanador?
La aguja se mueve pero no se
forma el punto
¿Está la aguja defectuosa?
¿Está la aguja totalmente insertada dentro
del sujetador?
¿Están enhebradas correptamente la
bobina y la aguja?
¿Está la bobina correctamente insertada
en su caja?
Se rompe ia aguja
¿Está la aguja recta y con punta?
¿Es la aguja del tamaño correctof
¿Está la aguja totalmente introducida
dentro del sujetador?
¿Están los controles colocados apro
piadamente?
¿Son correctos los accesorios para la
aplicación?
Dificultades en el devanado
¿Se devana correctamente el hilo del
carrete?
¿Está conectado el devanador?
¿Está sujeto con seguridad el extremo del
hilo al empezar el devanado?
¿Está el hilo enganchado en ia ranura del
carrete de hilo?
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