USER manual
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8.
MAINTENANCE AND CLEANING
8.1
Safety precautions
Carefully read the instructions provided in chapter 2 on page 44.
8.2
Periodic Maintenance
In addition to performing the following maintenance operations at the specified frequency, have the Qualified
Technician perform an overall check of the machine whenever prompted by the warning on display, as indicated
in para. 8.4 on page 69.
Component
Type of operation
Weekly
Monthly
Quarterly
PRESSURE TRANSDUCER
Monitor the heating unit pressure indicated on the display which must be
between 0.8 and 1.4 bar.
X
PRESSURE TRANSDUCER
Periodically check the water pressure indicated on the display when coffee
is being dispensed: check the pressure indicated on the gauge, which
must be between 8 and 9 bar.
X
FILTERS AND FILTER HOLD-
ERS
Check the condition of the filters. Check for any damage on the edge of
the filters and check whether any coffee grounds settle in the coffee cup
and replace the filters and/or filter holders, as required.
X
GRINDER-DISPENSER
Check the ground coffee dose (between 6 and 7 grams per time) and
check the degree of grinding. The grinders must always have sharp cutting
edges. There will be too much powder in the grounds when they are de-
teriorating. We recommend calling out the Qualified Technician to replace
the flat grinders after every 400/500 kg of coffee, or after every 800/900
kg for conical grinders.
X
WATER FILTER
WATER SOFTENER
Replace the water filter cartridge or regenerate the water softener as
often as specified by the manufacturer.
X
HEATING UNITS
We recommend that you call out the Technical Assistance at least once
every three months to replace the water in the heating unit.
X
Component problems highlighted in grey require the machine to be switched off and one of the Qualified Technicians to be called out.
8.3
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, a Qualified Technician must replace all the water inside the
hydraulic circuits as indicated in para. 7.4 on page 56.
Furthermore, all periodic maintenance operations must be carried out, see the previous paragraph.
