HIGHLEAD DY-850, Instruction Manual

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9. 压脚压力调节
ADJUST THE PRESSURE OF PRESSER FOOT
压脚的压力，要根据缝料的厚度加以调节。首先旋
松调压螺钉锁紧螺母 A，缝纫厚料时，应加大压脚压力，
这时将机头顶部的调压螺钉按图 a 所示箭头方向转动，
反之，缝纫薄料时，可按图 b 所示的方向，转动调压螺
钉，以减少压脚压力。最后旋紧调压螺钉锁紧螺母 A
即成。压脚的压力，应以能正常推送料为宜。
Pressure of presser foot is to be adjust in accordance
with thickness of materials to be sewn.
First loosen Lock Nut (A). For heavy materials, turn
the pressure regulating thumb screw (a) to increase the
pressure, while for light materials, turn the pressure
regulating thumb screw (b) to decrease the pressure. Then
tighten Lock Nut (A). The pressure of presser foot is recommended to be less as long as normal feeding is
ensured.
10. 挑线簧调节
ADJUST THREAD TAKE-UP SPRING
挑线簧摆动幅度为 8-10 毫米。缝纫薄的缝料(短针距)，则要减弱挑线簧的张力和放宽其摆动幅度，
缝制特别厚的缝料则反之。
The rang of the thread take-up spring is 8 to 10mm.Sewing light material (small stitch), weakened the
tension of the thread take-up spring and widened the range of the thread take-up spring. Sewing the heavy
material, the adjustment is opposite.
1) 挑线簧张力调节 Adjusting the thread take-up
spring tension
先旋松夹线调节座螺钉 A，夹线螺钉 B 就能转动，
顺时针转动时，张力增加，反之则减少，调节好后，仍
将夹线调节座螺钉 A 旋紧。
控制方法：松开夹线调节座螺钉 A，将夹线螺钉 B，
逆时针转动，使挑线簧 C 的张力压缩到 0，再把夹线螺
钉 B 顺时针转动，至挑线簧 C 触及夹线调节座上止动缺
口，然后，夹线螺钉 B 再逆时针回转二分之一转动角度
即可。最后旋紧夹线调节螺钉 A。