FULLY-AUTOMATIC ESPRESSO COFFEE MACHINE - Wega

MACHINE COMPONETS - chap.8
Technical manual
3. Replacement of 230 V heating element (blue wires).
� Remove the group from the machine following the instructions on page 42.
� Loosen the anchoring screw (1) without removing it. It is located on the front
side of the group chamber. Extract the cartridge heating element from the
chamber.
� Insert a new cartridge heating element in the appropriate place and secure by
tightening the anchoring screws. Do not tighten excessively.
4. Replacement of 24 V heating element (brown wires).
� Remove the group from the machine following the instructions on page 42.
� Loosen the anchoring screw (2) without removing it. It is located on the front
part of the group head. Extract the cartridge heating element.
� Insert a new cartridge heating element in the appropriate place and secure by
tightening the anchoring screws. Do not tighten excessively.
5. Motor replacement
� Remove the group from the machine following the instructions on
page 42.
� Unscrew the nut that holds the cams (A).
� Loosen the two screws of each cam (B) and remove the cams.
� With a 4 mm Allen wrench, loosen the four screws (C) that hold the
group motor support.
� Use a 5 mm Allen wrench to loosen the four screws (D) that hold
the reduction gear and the support.
During maintenance of the group, it is advisable to clean carefully
in order to remove all coffee residues from the moving
mechanical parts of the group.
These residues, in the long run, may degrade mechanical operation
of the group, eventually leading to malfunction signals
from the machine.
All mechanical parts of the group must be cleaned with warm
water except for the electrical part of the motor, which must be
dealt with only using brushes and dry cloths.
After cleaning, it is recommended to grease some parts of the
delivery group, especially points where mechanical movement
causes the most friction.
44
english
B
A
C D
2
1