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Singer Prima 25 - Twin Needle Sewing; Procedure for Twin Needle Stitching

Singer Prima 25
38 pages
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Performance checklist
When sewing difficulties occur, look back
through this manual to make sure vou are
correctlv following the instructions.
If
vou still
have a problem, the reminders below mav
help vou to correct it.
Needle does not move
Is machine connected to electrical supplV?
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 fullV inserted into needle clamp?
Are bobbin and needle correctlv threaded?
Isbobbin correctlv inserted into bobbin case?
Needle breaks
Is needle straight and sharp?
Is needle correct size?
Is needle fullV inserted into needle clamp?
Are controls properlv set?
Are accessories correct for application?
Bobbin winding difficulties
Is thread unwinding freelv from spool?
Is bobbin winder engaged?
Is thread end securelv held at start of wind?
Isthread hanging up on the slit on the thread
spool?
70
Upper thread breaks
Is machine properlv threaded?
Is thread freelv unwinding from spool?
Is proper spool cap being used?
Is needle correct size for thread?
Is upper thread tension too tight?
Is bobbin case properlv inserted?
Is bobbin rim free of nicks?
Lower thread breaks
Is bobbin correctlv wound?
Isbobbin correctlv inserted into bobbin case?
Is bobbin case correctlv threaded?
Isthread hanging up on the slit on the thread
spool?
Skipped stitches
Is machine properly threaded?
Is fabric firmlv held down?
Is needle correct stvle and size?
Is needle straight and sharp?
Fabric does not move properly
under presser foot
Ispresser foot correctlvattached to machine?
Is presser foot lowered?
Is stitch length correctlv set?
71
Lista de verificaciones
uando aparezcan dificultades al coser,
consulte este manual para asegurarse de
que sigue correctamente las instrucciones. Si
aun asi continuasen los problemas. los
recordatorios siguientes pueden avudarla
para corregirlos.
La aguja no se mueve
Es la mâquina conectada a la red?
" Es abierto el boton de fuerza y luz?
" Es conectado el regulador?
" Estâ conectado el devanador?
La aguja se mueve pero no
se forma el punto
1..
Es la aguja defectuosa?
1..
Estâ la aguja total mente insertada dentro
dei sujetador?
1..
Esnenhebradas correctamente la bobina
y la aguja?
1..
Esla bobina correctamente insertada en
su caja?
Se rompe la aguja
Es la aguja recta V con punta?
1.
Esla aguja dei tamar'\o cor recto?
1.
Esla aguja totalmente introducida dentro
dei sujetador?
1.
Estân los controles colocados apropla-
damente?
, Son correctos los accesorios para la
aplicaciOn?
Dificultades en el devanado
, Se devana correctamente el hilo dei
carrete?
, Estâ conectado el devanador?
, Estâsujeto con seguridad el extremo dei hilo
al empezar el devanado?
Es el hilo enganchado en la ranura dei
carrete de hilo?
El hilo superior se rompe
Estâ la mâquina enhebrada apropia-
damente?
Se devana correctamente el hilo dei
carrete?
Se esta utilizando el sujetador de carrete
apropiado?
Es la aguja dei tamano cor recto para el
hilo?
Esté demaslado prieta la tension dei hilo
superlor?
Esté la caja de bobina debidamente
insertado?
Esté el borde de la bobina libre de
muescas?
El hilo inferior se rompe
Esté la bobina correctamente devanada?
Esté la bobina correctamente insertada en
su caja?
Esté la caja de bobina correctamente
enhebrada?
Fallo de puntos
1.
Es la méqulna enhebrada apropia-
domente?
1.
Esté el tejldo sujeto con seguridad?
Esla aguja dei estilo V tamar'\o correctos?
1.
Es 10 aguja recta V con punta?
El tejido no se mueve apropia
damente debajo dei prensatelas
1.
Estâ el prensatelas unido correctamente
a la mâquina?
Estâ bajado el prensatelas?
Estâ correctamente colocada la longitud
dei punto?

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