Necta Colibri, Instructions For Installation, Use And Maintenance Manual, Page: 18 / 48

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© by NECTA VENDING SOLUTIONS SpA 03-2003 217 00
ADJUSTING THE GRADE OF GRINDING
When a variation in the grade of grinding is desired, turn the
relevant adjusting knob on the grinder (see Fig. 14) and
more specifically:
- turn the knob anticlockwise for coarser grinding;
- turn the knob clockwise for finer grinding.
For optimum results, it is advisable to vary the grade of
grinding with the coffee grinder motor running.
OPERATING MODES
Three different operating modes are provided for the
machine; the buttons will have different functions accord-
ing to the machine operating mode.
The available operating modes are indicated in the follow-
ing table:
DISPLAY FUNCTIONS
Normal mode
“Ready for use” coins accepted
products dispensed
Maintenance
“Maintenance” test dispensing
machine maintenance
Programming mode
“Programming” programming
NORMAL OPERATING MODE
When switching the machine on, the display will show the
message “Rev. X.X” (X.X indicates the software release
number) for a few seconds, after which the machine will be
set to normal operating mode.
The massages displayed according to the operation being
carried out can be the following:
DISPLAY FUNCTION
“Ready for use” Machine ready
“Price:....” Price display of
selected product
“Credit:.....” Displaying credit inserted
“Out of service” Machine switched off
“Drink in process” Drink preparation
“Temperature” Wait time before reaching
operating temperature
“Sel. Disabled” Selection disabled
“Coffee off” Coffee unit out of service
“Take” Drink ready
Fig. 14
1 - Macinino
2 - Manopola di regolazione macinatura
3 - Regolo dose
4 - Levetta regolazione dose
5 - Tacche di riferimento
N.B.: After adjustment of the grade of grinding, at least
2 test selections must be performed in order to check
the new grade of grinding for ground coffee:
The finer the grade of grinding the longer the time neces-
sary for dispensing the coffee and vice versa.
ADJUSTING THE COFFEE DOSE
The dose adjusting lever can be positioned in one of the 6
reference notches bearing in mind that:
- the dose is increased by lifting the lever:
- the dose is reduced by lowering the lever:
- every notch changes the dose by approx. 0.25 g.
In addition, when the lever is fully rotated upwards, the
ratchet can be released from the groove in the dose
regulator (see Fig.14) and replaced into a different groove
to change the average dose setting to:
- low 6 g ± 0,5
- medium 7 g ± 0,5
- high 8 g ± 0,5
To take the dose just remove the coffee unit and press
button “6” from “Special functions” of the “maintenance”
menu (see relevant section).
Important notice!!!
To refit the coffee unit, pay special attention to the
piston position. Reference notches on the external
disk and on the unit case should match (see Fig. 16).