Open TC # 1 and bleed by loosening hose connection at VB.

开启TC1号,然后通过松开连接在VB上的软管来排放空气.

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Will you please show me your hose connection?

你能带我去看水龙管接头 吗 ?

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Slowly loosen hose connection at TC # 3 until differential gauge rises to about 2 PSI, then tighten.

慢慢松开连接在测试旋塞3 号 上的软管直到压差表上升到大约2PSI, 然后紧固.

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