22
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14. Maintenance instructions grinder.
Mocca BTB
C
Fig.3.
4.
Removing the rotating carrier.
(continuation).
4.3
Clean the surfaces of the seats and the new discs.
In case of coffee residues left between disc carrier and new disc, the
discs will not run parallel and the grinding performance will deteriorate.
4.4
Mount the new rotating grinding disc.
NOTE! The grind adjustment has to be modified
after changing the discs.
See chapter 5 for new basic adjustment.
5.
Basic adjustment of the grinding finess.
5.1
Loosen grinder housing.
5.2
Press the adjustment screw (C) fig.3 while turning it clockwise until the milling blades touch.
Check that they are touching by turning the container manually. The blades are touching
when you hear a scratching sound.
C
5.3
Press and turn the adjustment screw counterclockwise 20 notches for the basic setting
(approx. 0.5 mm).
5.4
Reassemble grinder house.
6.
Exchange of the silicone flapper in the spout.
If the silicon fl apper is damaged or out of place it has to be replaced
respectively refi tted to the housing.
Proceed as follows:
6.1
If possible: remove coffee residues (close bean container, grind empty, vacuum cleaner).
6.2
Loosen the set screw at the front of the grinder housing. Fig.4.