TM 55-2090-201-14&P3-32. RELIEF VALVE, TYPE A AND B SEPARATOR (Continued).LOCATIONITEMACTIONREMARKSNOTETo verify pressure setting proceed as follows:1. Auto control selectorswitchTurn OFF.2. Supply pump selectorswitchTurn ON.3. Intervessel shutoff valveSlowly closeuntil pressurerelief valveactivates. Thepressure reliefvalve can beheard as it re-lieves pressureat the presetlevel, and thepressure read-ing as observedon the inletpressure gaugeswill begin tostabilize.Supply pump selector switchTurn OFF.3-182
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