In order to obtain a drier foam, you must increase air pressure. On the contrary,
in order to obtain a more humid foam you must reduce air pressure.
Standard tuning of the air pressure
The air pressure, which in the air tank is varying with the time, is regulated and
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).
Pressure values under 3 bars can generate a too liquid foam, while pressure
values higher than 3 bars can generate a too dry foam.
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 bars while spraying.
Pull the knob before turning it and push it after the regulation in order to block it.
Maintenance
The model Sabrina Foam Light is a professional machine. The warranty on these
machines is of 1 year and regards the faults due to manufacturing defects. The
faults due to improper use are not covered by warranty. For further details
regarding warranty, contact the distributor supplying the machine.
For a good preservation and a long duration of the machine, do the following:
1. After using the machine, before storing it, remove all the water from the 2
tanks. Put then some liters of water inside the solution tank and drain it
