Maintenance And Cleaning; Safety Precautions; Periodic Maintenance; Maintenance After A Short Period Of Machine Inactivity - C.M.A. Astoria Plus 4 You TS SAEP Bedienungs-Und Wartungsanleitung, Anweisungen Für Den Benutzer

8.

MAINTENANCE AND CLEANING

Safety precautions

8.1
Carefully read the instructions provided in chapter 2 on page 44.

Periodic Maintenance

8.2
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
Monitor the heating unit pressure indicated on the display which must be
PRESSURE TRANSDUCER
between 0.8 and 1.4 bar.
Periodically check the water pressure indicated on the display when coffee
PRESSURE TRANSDUCER is being dispensed: check the pressure indicated on the gauge, which
must be between 8 and 9 bar.
Check the condition of the filters. Check for any damage on the edge of
FILTERS AND FILTER HOLD-
the filters and check whether any coffee grounds settle in the coffee cup
ERS
and replace the filters and/or filter holders, as required.
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-
GRINDER-DISPENSER
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.
WATER FILTER Replace the water filter cartridge or regenerate the water softener as
WATER SOFTENER often as specified by the manufacturer.
We recommend that you call out the Technical Assistance at least once
HEATING UNITS
every three months to replace the water in the heating unit.
Component problems highlighted in grey require the machine to be switched off and one of the Qualified Technicians to be called out.

Maintenance after a short period of machine inactivity

8.3
"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.
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