Инструкции Пользователя для Brother 3034D

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The default thread tension, which is automatically set, 

can normally be used regardless of the type of thread or 

fabric being sewn. However, with some fabric and 

thread combinations, the thread tension may need to be 

adjusted.

■ Correct Thread Tension

The upper thread and the bobbin thread should 
cross near the center of the fabric. If the thread 
tension is incorrectly set, the seam may have a poor 
finish or the fabric may pucker.

a Wrong side of fabric
b Surface of fabric
c Upper thread
d Bobbin thread

■ Upper Thread Is Too Tight

If the bobbin thread can be seen on the surface of 

the fabric, press 

 . Each press of the key reduces 

the setting and makes the thread tension more loose. 

a Surface of fabric
b Upper thread
c Bobbin thread
d Locks appear on the surface of the fabric.

■ Upper Thread Is Too Loose

If the upper thread can be seen on the wrong side of 
the fabric, press 

 . Each press of the key increases 

the setting and makes the thread tension tighter. 

a Wrong side of fabric
b Locks appear on the wrong side of the fabric.
c Upper thread
d Bobbin thread

Press 

 to return the setting to its default.

After selecting a stitch pattern, turn on the automatic 

reinforcement stitching setting before sewing, and the 

machine will automatically sew reinforcement stitches 

(or reverse stitches, depending on the stitch pattern) at 

the beginning and end of sewing.

a

b

→ The key appears as 

 .

a

b

c

d

a

b

c

d

a

b

c

d

The automatic reinforcement/reverse stitching setting 
is already selected with some stitches, such as 
buttonholes and bar tacks.