Homecraft KEGERATOR BK49BS Manuel D'instructions page 17

How To Set Regulator
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Finally, we suggest you re-check the output pressure on the Regulator, and if
necessary re-adjust starting at step #1 until the desired pressure is reached.
15
Close the Shut Off Valve on the Regulator, and open the
CO 2 Tank valve completely by turning it counterclockwise.
Slowly turn Pressure Dial all the way to the negative
( - ), then pull the Pressure Relief Valve (PRV) to ensure
an accurate reading. Then very slowly turn the Pressure
Dial clockwise until the desired pressure is shown on the
Output Pressure Gauge (8-12 PSI is recommended).
» Turning clockwise will increase the
output pressure (higher PSI).
» Turning counter-clockwise will decrease
the output pressure (lower PSI).
Once desired pressure is reached, tighten the inner
Locking Ring. Pull the PRV to assure the correct
setting. If necessary, readjust your settings.
Next, open the CO 2 Shut Off Valve on the Regulator to
allow gas to flow from the Regulator to the Keg Coupler.
You will hear the keg pressurizing. The output needle
will drop momentarily until the pressure has equalized.
Then the needle will return to the point you set it at.