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10. MAINTENANCE AND CLEANING
10.1 Safety precautions
Carefully read the instructions provided in chapter
"I. SAFETY PRECAUTIONS" on page 3.
10.2 PPE features
When installing the machine, the following PPE is required:
The use of protective gloves is mandatory.
10.3 Maintenance
10.3.1 Scheduled maintenance
Perform the following maintenance according to the specified
frequency.
If the machine is used intensively, the checks need to be per-
formed more frequently.
Component
PRESSURE
TRANSDUCER
FILTERS AND FILTER
HOLDERS
DISPENSING GROUP
WATER FILTER
WATER SOFTENER
GRINDER-DISPENSER
HEATING UNIT
TECHNICIANS' manual
Check the heating unit pressure, which must be between 0.8 and 1.4 bar.
Check the water pressure when coffee 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 the
filters and check whether any coffee grounds settle in the coffee cup, and
replace the filters and/or filter holders, as required.
Replace the shower screen and group gasket as indicated in para. 10.3.4.
Replace the water filter cartridge at the frequency indicated by the manufac-
turer.
If limescale has formed in the hydraulic circuit, the filter will need to be
replaced.
Carry out the regeneration as instructed by the manufacturer.
Take care in areas where the water is very hard. It will be necessary to regen-
erate the water at more frequent intervals, especially if the machine is used
intensively.
Check the ground coffee dose (around 7 grams each time) and check the de-
gree of grinding. The burrs must always have sharp cutting edges. Too much
powder in the grounds is an indication that the coffee is deteriorating.
We recommend contacting a Maintenance Technician to replace the flat
burrs after every 400/500 kg of coffee, or after every 800/900 kg for conical
burrs.
If the automatic burr wear warning is enabled, follow the instructions in para.
8.5.4.
Replace the water in the heating unit as indicated in para. 6.7.
Type of operation
URBAN
Quarterly
Yearly
X
X
X
X
X
X
X
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