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Reverse Delay Valve

  1. Connect external vacuum source to port on White side of delay valve. Connect one end of 24" (610 mm) section of rubber hose to vacuum gauge and other end to port on colored side of valve.
  2. With clock, time device in view and a constant 10 in. Hg vacuum applied, note time required for gauge pointer to move from 0-8 in. Hg.
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