Rancilio MD80, Use And Maintenance

Page: 38 / 64

38
●
Place the machine for coffee grinding and dosage
on a horizontal surface;
Only MD 50 e MD 80
●
Tighten the four hexagonal pins (14). Place on the
hexagonal pins the hopper container (3) (see fig.
5).
●
Place the grinders protection (4) on the bottom
of the container (3) with the upper holes in corre-
spondence with the inferior holes, then insert the
screw with relative washers (Fig.10 - pos.15) and
tighten them (Fig.6).
Do not overtighten the screws.
●
Insert the plug to connect the machine.
6.1. Motor rotation (To be effected by
professionally qualified personnel)
For the machines with thriphase electrical
power check the correct motor rotation.
●
Switch on the coffee grinder and check if the grin-
ding is correct. If the motor is rotating in the wrong
direction, the grinding will not be satisfactory.
●
Turn off the machine and the main switch.
●
Invert the two phase conductors, re-assemble all
the parts and grind some coffee.
6.2. Grinders calibration (to be effected
during the assembly and after the
grinders change)
The coffee grinder and dosing machines are tested
with an approximate adjustment; it is therefore re-
commended to adjust the machine before use with
the empty hopper container.
Machine adjustment should only be perfor-
med with the machine switched off and never
carried out when the machine is operating.
MD40
●
By keeping the ferrule-stop button (7 - Fig.3) pres-
sed, turn ferrule (6) in a clockwise direction until
the grinders click; turn immediately ferrule (6) in a
counterclockwise direction by 15-20 marks.
MD50/ST – MD50/AT – MD80
●
By keeping the ferrule-stop button (7 - Fig.3) pres-
sed , turn ferrule (6) in a counterclockwise direction
until the grinders click; turn immediately ferrule (6)
in a clockwise direction by 30-40 marks.
●
Release ferrule-stop button (7) and check that
ferrule (6) is locked.
6.3. Use of the grinding limiting disk
(only MD 50 e MD 80) (Fig.6-7-8-9)
Prior to the usual adjustments for the grinding degree.
Insert the coffee hopper and perform the usual adju-
stments for the grinding degree (see para 7.2. after
carrying out the operations listed in para 6.2.).
After obtaining the desired adjustment, remove the
coffee hopper (make sure to close the door so to pre-
vent the coffee still in the hopper from coming out).
Install the limiting disk (A) so to allow an equal adjust-
ment either in the direction “+” or “-“ in comparison
with the optimum position achieved with the adjust-
ments (Fig.8). Fix the position of the limiting disk by
tightening the (3) screws (B).
7. STARTING THE COFFEE GRINDER
7.1. Controls (Fig.3)
MD40 – MD50/ST
1 Main switch with two positions: when it is pressed,
the light is on, the machine is connected and the
coffee grinding starts.
MD50/AT – MD80
1 Main switch with two positions: when it is on position
(I), the light is on and the machine is connected.
2 Light button: when it is pressed the light is on and
the manual coffee grinding starts.
7.2. Grinding adjustment (Fig.3)
The coffee grinder is tested by the manufacturer with
an approximate grinding adjustment. It is recommen-
ded to re-adjust the machine to get the favourite
grinding according to the type of coffee used.
Machine adjustment should only be perfor-
med with the machine switched off and never
carried out when the machine is operating.
●
Put some coffee beans into the hopper container
and close the cover.
●
Make sure that the hopper is open (lever (5) ou-
twards).
●
Grind some coffee.
●
Place the filter ring on fork (11) and use lever (10)
in order to deliver the ground coffee dose.
●
If the filter ring is lower or higher that the ground
coffee outlet pipe, change the position of fork (11)
by turning out screw (14). Tighten screw (14) after
completing the adjusting operation.