Remove #1 Check Assembly by using your hands to unscrew (turn counter-clockwise) Check and remove through top access port.
Remove #1 Check Assembly by using your hands to unscrew (turn counter-clockwise) Check and remove through top access port.
通过顶部检修口，用手按逆时针方向旋转止回阀螺纹，拆卸1号止回阀总成。