Unscrew the Allen screw in the middle of valve cap and lift up the cap just enough to pick up the old diaphragm.

旋松阀帽中间的内六角螺丝，并且提起阀帽，正好足够拿走旧阀膜。

Unscrew the screw (3) with Allen key, and take out the external skive tool.

用随机附送的内六角扳手松开螺丝(3)，拿出外剥刀具。

Blade tools: eyebolt, turning tool, Allen key, screw tap, milling cutter, drill bits, etc.

刀刃工具类：埃令螺丝(吊环)、圆车刀、六角匙、丝攻、铣刀、钻咀等。