Инструкция С Настройками для Brother Innov-is 4750D

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■ When Tension is Applied to the Bobbin 
Thread
Insert bobbin into bobbin case so the thread unwinds 
from the left side.
Then correctly pass the thread through the tension 
spring as shown below.
a
Tension spring
■ When Tension is Not Applied to the Bobbin 
Thread
If the bobbin thread in the trial stitching is too tight and 
adjusting the bobbin case tension does not help (*As
described in see “Adjusting the Tension of the Bobbin 
Thread” on page 11), do not pass the thread through the 
tension spring.
Hold the bobbin with your left hand so the thread 
unwinds from the right side and hold the end of the 
thread with your right hand.
k
Pull out about 8 cm (approx. 3 inches) of 
bobbin thread.
l
Lightly hold the end of the upper thread while 
turning the handwheel toward you 
(counterclockwise) until the mark on the 
handwheel aligns with the center top of 
machine.
 CAUTION
• When winding the bobbin, make sure the thread is 
not frayed. Sewing with frayed thread may result in 
the thread catching on the tension spring of the 
bobbin case, the thread becoming tangled or 
damage to the machine.
• Do not guide the bobbin thread through the groove 
in the needle plate cover, otherwise the lower 
threading cannot be done correctly.