Santoemma SABRINA FOAM Manual De Uso página 19

Standard tuning of the air pressure
The air pressure, which in the air tank is varying with the time, is kept at a steady value by a
pressure regulator, which also allows to fix the value of the air pressure.
If you press for few seconds the valve on the spray accessory, you can see that the pressure
indicated by the manometer reduces while you are spraying, while it comes back to the initial
value when you stop spraying.
Several tests show that the optimal pressure is 3 bar while spraying (that is with lever of the
spray accessory pressed), which correspond to about 4 bars when not spraying (that is with
the lever of the spray accessory not pressed).
If for any reason the regulation of the pressure in your machine should change, you can
reset it by simply rotating the pressure regulation knob, clockwise to increase the pressure
and counter clockwise to reduce the pressure.
Proceed "cut-and-try" until you reach the condition 3 / 4 bars.
Pull the knob before turning it and push it after the regulation in order to block it.
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