17
44 2
44 2
442
Balancing the thread tension
1Set the tension dials as follows:
For narrow-left (3 mm wide):
q Left needle thread tension dial: 4
w Center needle thread tension dial: 4
e Looper thread tension dial: 2
For narrow-right (3 mm wide):
q Center needle thread tension dial: 4
w Right needle thread tension dial: 4
e Looper thread tension dial: 2
For Wide (6 mm wide):
q Left needle thread tension dial: 4
w Right needle thread tension dial: 4
e Looper thread tension dial: 2
2 Check the tension balance by test stitching on the
same fabric and threads as actual garment. Fine-tune
the tension as necessary.
Balanced tension:
The rows of stitches on the right side of the fabric are
straight and even. The looper thread forms a row of
squares with diagonals.
q Wrong side of the fabric
w Looper thread
e Left needle thread
r Right needle thread
(A) If the needle thread tension is too loose:
– The stitches on the right side are irregular and loose.
– There is a gap between head and tail of the looper
thread crossing points.
Tighten the needle thread tension, and/or loosen the
looper thread tension to correct it.
(B) If the needle thread tension is too tight:
– The fabric puckers.
Loosen the needle thread tension, and/or tighten the
looper thread tension to correct it.
q
we
q
w
r
e
q
w
e
qw
e
(A)
(B)
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