Jack k4 Series - Presser Height Adjustment

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图15
12、压脚高度调节
12. Adjusting presser height
调节压脚高度时，调整螺钉的高度，不让压脚和其他零件相接触，然后用螺母进
行固定。
When you are adjusting presser height, you should adjust the screw
height to avoid presser touching other spare parts, and then fix it withnut
图16
Front guard needle
Front guard needle
protect device
looper
Front guard needle
nut
screw