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tch again to complete or continue dispensing).
At night or when there are no operators in the room,
turn the ON/OFF switch to OFF (see figure F1).
F6
Never operate the appliance without
the hopper or hopper cover. .
9.4 GRINDING ADJUSTMENT
The machine is factory-set to grind beans for Espresso cof-
fee.
To adjust the grind size, use continuous dosing and preci-
sion scales to measure the exact weight. Whenever making
grinding adjustments, always remember not to consider
the first two double doses because they may contain an
amount of ground coffee from the previous setting. Once
the coffee has been pressed and you have checked that
the extraction time is as required, proceed to adjust the
times of the programmed doses. (See section 9.5).
To adjust the grind:
Micrometric adjustment
Turn the adjustment knob to change the grind size of the
coffee. Micrometric adjustment does not need locking.
Adjust grinding with the motor running if there is coffee
between the grinders, and with the motor switched off if
there is no coffee. The "+" symbol indicates the direction of
rotation to increase the grind size of the coffee; "- " is the
direction for decreasing the grind size.
A metal plate, with both sides engraved, is placed on
the toothed ring, offering the option to select a symbo-
lic adjustment (see figure F7) or a numerical setting (see
figure F8).
It is also advisable to grind and use a few grams of coffee
30
M2 SERIES
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