Jack W4 Series, User Manual, Page: 36 / 58

the screw 2, adjust the main feed dog to 1.2 mm, then tighten the screw
2, in the same way, loosen screw 1, adjust the height of the differential
feed dog to 1.2 mm, then tighten the screw 1.
针板平面：The needle plate plane，螺钉 1：screw 1，螺钉 2 ：screw 2
图12（
Figure12
）
10、喂针的安装位置（Position of feeding needle）
喂针高度是针板上平面到喂针下面的距离为H，调整喂针高度，松开螺钉1，上
下移动喂针（图13），使其高度为为H，H的具体取值如下表：
Feeding needle height means the distance between needle plate plane
surface and needle tip is H, adjust feed needle height, loosen screw 1,
move up and down feed needle (figure 13), the height is H, the specific
numerical for H are in the following table: