Jack k4 Series - Swing Timing Bar and Thread Loop

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图10 picture 10
8、摆动挑线杆的同步和线环的关系
8、The relationship between swing timing bar and thread loop
提要：如果由于线环过大或过小等找出机器跳针、断线时，可以通过调节摆动挑线
杆来调整线环的大小。
Tips:you can adjust swing timing bar to adjust the size of thread loop, if
the thread loop is too large or too small that leads to needle-
skipping,thread-broken problems.
利用过线球连杆调整
Making use of over-thread bar to adjust
松开紧定，调节过线球连杆，移动过线球连杆想前或向后，向前移动则线环变小，
向后移动则线环变大。（图11）
Loose set, adjusting over-thread bar, moving the bar forward or backward,
on 1/3 of the
right needle
hole