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01-2003 197 00

Important notice!!

Access to the machine interior for maintenance and/or
repairs is via the back panel.
Therefore the machine is designed to be rotated, thus
allowing removal of the back panel.

The integrity of the machine and compliance with the
standards of the relevant systems must be checked at
least once a year by qualified personnel.

Before starting any maintenance operations requir-
ing parts of the unit to be removed, the machine must
always be switched off.

The operations described below must be carried out
only by personnel who have the specific knowledge of
the machine functioning from a point of view of elec-
trical safety and health regulations.

INTRODUCTION

To ensure correct operation for a long period, the machine
must be subjected to regular maintenance.
The following sections contain the procedures and the
maintenance schedule, which are only a general indica-
tion, as they greatly depend on the operating conditions
(e.g. water hardness, environmental humidity and tem-
perature, type of product used, etc.).
The procedures described in this chapter are not exhaus-
tive of all maintenance operations to be carried out.
More complex operations (e.g. boiler descaling) should
be carried out by qualified technicians only having specific
knowledge of the machine.
To prevent oxidation or the action of chemical agents, the
stainless steel and varnished surfaces should be kept
clean by using mild detergents (solvents must not be
used).

Never use water jets to clean the machine.

BREWER UNIT MAINTENANCE

Every 10,000 selections or every 6 months some mainte-
nance of the brewer unit must be carried out.
Maintenance is carried out as follows:

- remove the boiler teflon hose connection from the upper

piston, paying attention not to lose the seal (see Fig. 14);

- undo the knob securing the unit to the bracket;

- remove the brewer unit.

Chapter 3

MAINTENANCE

Fig. 14

1 - Coffee funnel
2 - Boiler connecting hose
3 - Unit securing knob
4 - Upper piston snap ring
5 - Lower piston snap ring
6 - Reference notches
7 - Ratiomotor handle pin

Removing the upper filter

- Take the snap ring out of its seat;

- remove the piston from the crosspiece;

- remove the filter and the piston seal.

Removing the lower filter

- Loosen screws A and B enough to release the coffee

funnel (see Fig. 14);

- remove the lower piston snap ring;

- take the piston out of brew chamber and remove the filter.

Soak all components removed from the unit in a solution
of boiling hot water and coffee machine detergent for
approx. 20 minutes.
Thoroughly rinse and dry all parts, then reinstall them in
the reverse order of disassembly, taking particular care
that:

- the piston is positioned in the correct notch for the coffee

dose used (see relevant section);

- the two reference notches match and that the coffee unit

is inserted.

Important notice!!!

Check that the handle pin of the ratiomotor is cor-
rectly engaged in its seat.