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After reaching the proper pressure setting, push the purge cover on the second stage again
several times and watch how the intermediate pressure reading responds. When the purge
cover on the second stage is depressed, the intermediate pressure reading will drop. When
the purge cover is released, the pressure should return immediately to the proper lock-up
pressure and stay there.
Let the regulator sit with the tank valve turned on for several minutes.
The intermediate pressure reading may rise about 3 psi in the first three seconds after lock-
up, but after that it should not rise more than another 4 psi (.3 bar) in five minutes.
Note: Never set the output pressure of the first stage above 145 psig (10 bar).
To finish installing the ENV CAP (34) on the first stage, the pressure to the first stage must
be left on to position all internal parts properly.