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Turn the supply air on slowly while listening for any unusual air leaks. If any are heard, turn
the air off immediately and determine the source of the leak. If no leaks are found, watch the
intermediate pressure gauge reading rise as you continue turning the air on slowly. It should
stop before 145 psig (10 bar) since the intermediate pressure has not been set yet.
If the pressure gauge continues to rise above 150 psig (10.4 bar ), turn the air supply OFF
immediately and inspect the regulator to determine the cause.