30
ADJUSTMENTS TO BE MADE BY A QUALIFIED TECHNICIAN
Pressostat adjustment
(boiler temperature)
To increase or reduce pressure (therefore
the corresponding temperature), the quali-
fied technician must:
-
remove the top cup-holder plate
-
turn the adjusting screw (Fig. 8) clockwi-
se to decrease and counter-clockwise to
increase.
recommended value 0,8-1,4 bars
pressostat (fig.8)
Grinding adjustment
- switch off the machine using the P L U G
key
.
The following operation must be carried
out with dry hands.
- Open the control door to gain access to
the grinding adjusting ring nut (Fig. 9).
Following the direction of the arrows,
grinding of the coffee beans can be adju-
sted to more coarse (counter-clockwise)
or finer (clockwise).
Close the door again.
Freezer’s temperature adjust-
ment
(Master Cappuccino version)
To reach the adjustment’s thermostat remo-
ve the drip tray and the container. Turn the
grip clockwise to lower the temperature, anti-
clockwise to increase it. A t e m p e r a t u r e
between 4 and 7 °C is advisable.
The temperature is shown by the thermome-
ter on the frontal part of the machine.
Pump adjustment
To adjust the pump the qualified technician must:
- pull out the coffee-grounds box
- loosen the adjusting screw until the screw lock nut is
freed (Fig. 7)
- increase (turn clockwise) or decrease (turn counter-
clockwise) the pump pressure; recommended values 7-9
bars
- tighten the lock nut.
(fig. 7)
Having read and fully understood the safety
instructions in this handbook.
There is a double-scale pressure gauge inside
the machine, which measures the boiler pres-
sure (0-2,5 bars) and the volumetric pump
pressure (0-15 bars) (Fig. 6).
gauge (fig. 6)
pump (fig.7)
grinding (fig.9)
