Jack k4 Series, Use Manual

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5、Adjusting needle height
Firstly, adjusting the gap between the needle and the needle plate to ensure
the gap is equal. And then adjusting needle height ,when the needle run to
the highest point,the height of needle plate to left needle pinpoint is
H( Picture 7),and H parameter as follows:
标 准
standards
机型
Machine
Model
标准行程（30.8mm）
Standards(30.8mm)
高行程（33.4mm）
Height(33.4mm)
型号 Model 左针高度H
left needle Height
左针高度H
Left needle Hight
K4-01GB×356 7.5 9
K4-01GB×364 7.1 8.6
K4-02BB×356 7.5 9
K4-01BB×364 7.1 8.6
K4-35AC×356 9 9
K4-35AC×364 8.6 8.6