Jack JK-T1790 Manual page 21

4.梭壳的穿线方法 Threading the bobbin case
梭芯转动方向和穿线方法 Rotating direction of bobbin and threading
1) 请按照箭头所指示的方向把梭芯插进去。
Fit the bobbin so that it rotates in the direction of the arrow.
2) 请把机线穿过穿线口○
Pass the thread through thread slit ○
through thread slit ○
3) 请注意进行直锁眼缝和锯齿边缝时，○
Threading at ○ for purl stitching is different from that for whip stitching. So, be careful.
4
5.底线张力的调整 Adjusting the bobbin thread tension
在梭壳穿线口○ 上方的位置，把底线向上拉出之后，请按照下列的方法调整底线张力。
1
Adjust the bobbin thread tension as given below when the bobbin thread is pulled up at the position
where thread slit ○
1
直锁眼缝
0.05∼0.15N
Purl stitch
锯齿边缝
0.15∼0.3N
Whip stitch
，然后再从张力弹簧○
1
1
, and pull the thread from ○
3
的穿线方法不同。
4
of bobbin case comes up.
手拿从梭壳出来的线头，轻轻地上下摆动时，梭壳就稍稍下降
To such an extent that bobbin case quietly comes down when holding
thread end coming from bobbin case and shaking it quietly up and down.
手拿从梭壳出来的线头，用稍稍强的力量摆动时，梭壳才下降
To such an extent that bobbin case barely comes down when holding
thread end coming from bobbin case and shaking it somewhat strongly.
的下面躜过去，再次穿过穿线口○
2
, then through under the tension spring ○
.
4
- 14 -
，从○ 把线拉出来。
3 4
, again
2