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差 動 比調整
若主送具之運動行程大於差動送具運動行
程時，布料車縫時會伸張，反之則會收
縮。
.調整方法一：
1
放鬆調整鈕 ，當調整桿
使布料收縮，反之則伸張，調整後再鎖
調整鈕 。(圖25)
(表 )
Scale
Differential feed ratio
向下調整時
3
1:1.3
1:2
1:3
1:4
表3/Table3
ADJUST THE DIFFERENTIAL
FEED RATIO
If the stroke of the main feed dog is larger than
the stroke of the differential feed dog, the
fabric will be extended while sewing.
Otherwise, it will be shrunk
1.Adjust solution 1:
Loosen the adjusting nut
adjusting rod
fabric, whereas move it upward will extend
the fabric. Tighten the adjusting nut
the adjustment finishes. ( Fig.25)(Table3)
1
2
-
1:0.7
1:0.9
1:0.7
1:1
1:1.14
1:1
1:1.5
1:1.1
1:1.3
1:2.3
-24-
圖24/Fig. 24
. Adjust the
downward will shrink the
3
4
1:1.1
1:1.3
1:1.17
1:2
1:2
1:2.5
1:3
1:2.8
1:3.3
after
5
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