Rotate the cap with your hand lightly in the direction as indicated by the arrow.
用手轻轻转动，使盖子沿箭头? 方向快速旋转。
It is mainly made up of frame, gate board, screw pole, nut etc. Rotate the handwheel by hand, then the screw pole drives the nut gate board move in horizontal to fro to open close the valve.
主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。
Loosen the scale retaining ring and rotate the turn indicator scale to align with the " 0 " on the handwheel. tighten the scale retaining ring by hand. do not overtighten.
松开刻度上的固定环，旋转指示器刻度使其对齐手轮上的「 0 」 。用手紧固刻度上的固定环。不要过紧。
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