SINGER 1872 - Manual (Page 60)

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 belovv
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 silt 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 Properly
Under Presser Foot
Is presser foot correctly attached to
machine?
Is presser foot lowered?
Is stitch length correctly set?
Lista de comprobación del
funcionamiento
Cuando aparezcan dificultades al coser,
consulte este manual para asegurarse de que
sigue correctamente las instrucciones. 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?
58
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 la ranura del
carrete de hilo?
El hilo superior se rompe
¿Está la máquina enhebrada apropiadamente?
¿Se devana correctamente el hilo del carrete?
¿Se está utilizando el sujetador de carrete
apropiado?
¿Es la aguja del tamaño correcto para el hilo?
¿Está demasiado prieta la tensión del hilo
superior?
¿Está la caja de bobina debidamente
insertada?
¿Está el borde de la bobina libre de muescas?