Publicidad
Thread Tension
(4 threads)
F
Correct
tension
The illustration
at right shows
sewing results with
correct tension
settings.
However,
adjusting
the
thread tension
may be required
depending
upon the
type of fabric and thread
being used.
(_Wrong
side of fabric
(_ Right side of fabric
(_ Right needle thread
(_ Left needle thread
(_) Upper looper thread
(_ Lower looper thread
Thread tension
adjustment
* Set all four thread
tension dials at "3".
Then serge, and check the thread tensions.
If the tension
balance
on the test piece is
factory, you can adjust the thread tension with
thread tension
dial.
.........
(_ Thread tension dial
®
......
Setting mark
......................................................
L
oosen
@ Tighten
Left
is
The illustrat;
_hows sewing
:utts when the left
needle thre_a :i_ _ion is too :i8 _:&
Re m edy [
; :
: :
Tighten the left
tension.
@ Left needle thread tension dial
f
11
®
J
Right
needle
thread
tension
is too loose
The illustration
shows sewing results when the right
needle thread tension
is too loose.
Remedy:
Tighten the right needle thread tension.
@ Right needle thread tension dial
/
®
11
\
J
48
Publicidad
