Lower tensiion, Ajuste de tension de la bobina – SINGER W1999 User Manual
Page 64
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Page 56
Section
7
English
LOWER TENSIION
If you machine skips stitches or
loops stitches, it may require a
tension adjustment. To check the
bobbin
tension,
foiiow these
steps:
© Push latches of the shuttle
race cover to the outside, as
shown in figure ®.
©Remove shuttle cover as
shown in figure (g).
@ Remove shuttle as shown in
figure d).
©Suspend bobbin, bobbin
case, and shuttle all together
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 ten
sion is too loose.
See following page for adjust
ment of the bobbin case.
Once the bobbin case is cor
rectly adjusted, it is easy to
use the upper tension to bal
ance the stitches as shown
on page 16.
X Shuttle
y Bobbin and bobbin case
All of them descend with
light resistance.
Espam>l
AJUSTE DE TENSION DE
LA BOBINA
Si la máquina pierde puntos o
hace nudos por el revés en la
costura no es problema de la
máquina, sino de la tensión.
Para verificar la tensión de la
bobina, se debe tomar ésta y
el cangrejo como se indica en
el dibujo, si la tensión es cor
recta se desplazarán lenta
mente.
Después ajustar la tensión
superior con los número 4, 5,
o 6.
® Girar los seguros hacia
afuera.
® Quitar la tapa del cangrejo
® Quitar el cangrejo.
@ X Cancrejo
y Carrete y bobina
El cangrejo y la bobina se
desplazarán lentamente.