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23) DOUBLE CHAIN STITCH LOOPER OF SC(D)9300
SERIES ADUSTMENT
1) Adjust the distance (a) between the end of the looper and the
center-line of the double chain stitch needle. (Refer to table 4)
•Turn the hand pulley until the double chain stitch looper
goes farthest from left.
•Loosen the screw①, fix the looper holder③ by adjusting
from side to side with the setting values.
•Tighten the screw② temporarily.
2) Adjust the distance between the looper and the needle.
•Move the end of the looper to the center-line of the double
chain stitch needle by turning the hand pulley.
•Loosen the screw①, move it back and forth to set the
distance between the looper holder③ and the needle
groove at 0~0.05mm by turning adjusting screw②.
•Tighten the screw①.
3) Adjust the back/forth momentum of the double chain stitch
looper
•Remove the cover④, loosen the screw⑤, turn the hinge
pin⑥ as required.
•Turn to (-) direction to make quantity increased. Turn to
(+) direction to make quantity decreased.
4) Adjust the quantity when changing the double chain stitch
needle.
•Turn the hinge pin⑥ in (+) direction when the needle in
specification is changed to the large number.
•Turn the hinge pin⑥ in (-) direction when the needle in
specification is changed to the small number.
NNoottee..
Do not loosen the screw⑤ too much.
Model
SC(D)(T)9300 Series
SC(D)(T)9316 - 04/435
SC(D)(T)9344 - 04/435
a
1.4~1.6mm
1.6~1.8mm
Table 4)
[Figure 44]
[Figure 45]
[Figure 46]
[Figure 47]
a
a
⑤
0~0.05mm
③
①
②
④
⑥
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