Bobbin thread tension, Ajuste de tensión de, La bobina – SINGER W915 User Manual

Page 58: Adjusting thread tension

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'7

BOBBIN THREAD TENSION
ADJUSTMENT

!f the machine skips or loops
stitches, it may require a
tension adjustment.

To

check the bobbin thread

tension, follow

these steps:

® Push the latches of the

shuttle race cover outward
as shown in figure ®.

@ Remove the shuttle cover

as shown in figure

(3) Remove the shuttle as

shown in figure d).

® Suspend the bobbin, the

bobbin case and the shuttle.

When pulling the thread
gentiy, all of them should

slide down with a slight
resistance as shown in
figure @. If not, the bobbin

case tension is too tight. If
they slide down too easily,
the bobbin case tension is

too loose.
See the following page for
the adjustment of the bobbin

case.

Once the bobbin case
tension

is

correctly

adjusted, the upper tension
can be easily adjusted as
shown on page 16.

X Shuttle

y Bobbin tension screw,

use a small screwdriver

to tighten/loosen.

AJUSTE DE TENSIÓN 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 canillero como se indica en
el dibujo, si la tensión es
correcta

se

desplazarán

lentamente.

Después ajustar la tensión
superior con los número 4, 5,
o 6.
® Girar los seguros hacia

afuera.

@ Quitar la tapa del canillero.
@ Quitar el canillero.

@ X Canillero

y Carrete y bobina

El canillero y la bobina se
desplazarán lentamente.

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