Pump Adjustment; Grinding Adjustment - Nuova Simonelli BOZZE 6 User Handbook Manual

ADJUISTMENTS TO BE MADE BY QUALIFIED TECHNICIANS
Having followed all the above safety precautions
and after having provided for the installation and
connection of the electric and plumbing systems
the Qualified Technician can proceed with the ini-
tial adjustment.
Inside the machine (behind the coffee grounds
drawer, see Fig. 1) a double-scaled pressure
gauge can be found (fig. 6), which measures the
coffee boiler pressure (scale 0-2,5 Bar) and the
volumetric pump pressure (scale 0-15 Bar).
Pressure gauge (fig. 6)
38
Pressostat adjustment
Service boiler
To increase or decrease the pressure of the servi-
ce boiler water-steam mixture (thus regulating the
corresponding temperature), the qualified techni-
cian must:
- remove the upper cover dish
- turn the registration screw (fig. 8), turning it
clockwise to decrease and counter clockwise
to increase.
The correct value is between 0,8 bar and 1,4 bar.
Pressostat (fig.8)

Grinding adjustment

- Turn the machine off by switching off the
SPINA button (main switch); the following ope-
ration must be carried out with dry hands.
- By opening the control panel, the grinding adju-
stment ring nut can be located (Fig. 8).
Following the direction indicated by the arrow,
the coffee grinding texture can be regulated to
a finer texture (clockwise) or to a coarser textu-
re (counter clockwise).
Close the panel.

Pump adjustment

To adjust the pump the qualified technician must:
- open the coffee grounds drawer
- loosen the blockage bolt
- turn the registration screw
- turn clockwise to increase
- turn counter clockwise to decrease, correct
value is 7-9 bar
- secure the safety bolt
(fig. 9)
pump (fig.9)