HIGHLEAD DY-850, Instruction Manual

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16
3) 刀片的调整：
Adjustment of knife engagement
（
1
）动刀片与定刀片的关系：
如图所示，动刀片与机针中心的距离为
7.5mm
，定刀片与机针中心的距离为
5mm
。
（
2
）刀片的调整：
启动机器，电磁铁工作，剪线凸轮会使动刀转动。当动刀转到极限位置时，其与定刀片的距离为
1.5—2mm
。
（
3
）剪线电磁铁的调整：
a.
如果剪线情况不良，尤其当线比较粗时，只需增加剪线压力即可。
b.
剪线压力可如下所述进行调整：松开螺母
B
，通过调节螺钉
A
来调整剪线力量。
（
1
）
Position of movable knife (left) and fixed blade:
The standard distances from the needle center are 7.5mm and 5mm from the movable knifeand fixed
blade respectively.
（
2
）
Adjustment of knife engagement:
With the solenoid activated, turn on the machine. This rotates the thread trimming cam which rotates the
movable knife. When the movable knife has moved to its farthest distance, the standard engagement of the
blade is 1.5mm-2.0mm. The engagement can be adjusted properly mounting the drive arm.
（
3
）
Adjustment of knife engagement pressure:
a. If a thread is poorly cut, particularly when it is thick, slightly increase the engaging pressure. This should
solve the problem.
b. The engaging pressure can be adjusted in this way: Loosen lock nut “B” and adjust it by using adjusting
screw “A”