4、打线凸轮及打线凸轮导线器的调整（Adjustment of hit thread cam and the hit thread
cam guider）
①、打线凸轮位置调整（Hit thread cam adjustment ）
当左针针尖下降大约位于弯针后面 1/2 的位置时（图 8-4），打线凸轮最高点 B 与
打线架平行。此时弯针线必须脱离凸轮最高位置，调整打线凸轮，使之恰好开始打
线。When the left needle goes down at the position, which is about 1/2 of the height of
curved needle.（Figure 8-4), the highest point B of hit thread cam is parallel to the thread
rack, put the looper thread out of the highest position of cam and adjust hit thread cam
until just start hit thread.
图8-4（Figure 8-4)
图5（Figure 8-5)
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