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7. MAINTENANCE AND CLEANING
7.1 Safety precautions
Carefully read the instructions provided in chapter
"I. SAFETY PRECAUTIONS" on page 33.
7.2 Periodic maintenance
Besides carrying out maintenance activities according to
the frequency specified in the "Periodic maintenance table",
a general inspection must be carried out on the machine at
least once a year by a Technician.
Component problems highlighted in grey require
the machine to be switched off and one of the
Technicians to be called out.
Periodic Maintenance Table
Component
Keep checking the heating unit pressure which must be between 0.08 and 0.14 MPa
PRESSURE GAUGE
(0.8 and 1.4 bar).
Periodically check the water pressure when coffee is being dispensed: check the pres-
PRESSURE GAUGE
sure indicated on the gauge, which must be in the range of 0.8 - 0.9 MPa (8 and 9 bar).
Check the condition of the filters. Check for any damage on the edge of the filters and
FILTERS AND
check whether any coffee grounds settle in the coffee cup, and replace the filters and/
FILTER HOLDERS
or filter holders, as required.
Check the ground coffee dose (between 6 and 7 grams per time) and check the degree
of grinding. Grinders must always have sharp cutting edges. Too much powder in the
GRINDER-DISPENSER
grounds is an indication that the coffee is deteriorating. We recommend contacting
the Technician to replace the flat burrs after every 400/500 kg of coffee, or after every
800/900 kg for conical burrs.
WATER FILTER
Replace the water filter cartridge or regenerate the water softener as often as specified
WATER SOFTENER
by the manufacturer.
GAS SYSTEM
Check for any gas leaks in the system by passing a soapy solution through the pipes.
We recommend calling out the Technician at least once every three months to replace
HEATING UNIT
the water in the heating unit.
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7.3 Maintenance after a short period of
machine inactivity
"Short period of machine inactivity" refers to a period of time
exceeding one working week.
If the machine is switched back on after this period, the Tech-
nician must replace all the water inside the hydraulic circuits
as indicated in para. "7.2 Periodic maintenance" on page
56.
Furthermore, all periodic maintenance operations must be
carried out, see the previous paragraph.
Component problems highlighted in grey require
the machine to be switched off and one of the
Technicians to be called out.
7.4 Malfunctions and solutions
In the "Malfunctions and Solutions Table", alarms and actions
to carry out in order to try and resolve the reported problem
are provided.
Problems highlighted in grey require the machine to
be switched off and the Technician to be called out.
If a malfunction cannot be resolved, turn the ma-
chine off and call out the Technician.
Type of operation
X
X
X
X
X
X
X
USER manual
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