Checks And Maintenance - Astoria GRETA AEPS Manuel D'utilisation Et D'entretien

the boiler completely by unscrewing the special
pipe fitting located on the lower part of boiler.
If the above procedure is not carried out cor-
rectly, opening any part of the hydraulic system
can cause a sudden outburst of superheated water
under pressure.
Use of the appliance
This espresso coffee machine is an appliance for
professional use only. Any other type of use is con-
sidered incorrect and therefore dangerous. Never
allow children or people not familiar with it to use
the machine.
Non-observance of the above-described stand-
ards can cause serious harm to people, proper-
ty or animals.
Never operate the electronic apparatus when
the appliance is supplied with electrical power.
Shut down the appliance completely by discon-
necting it from the power outlet before carry-
ing out any operation.
User manual
11

Checks and maintenance

To ensure perfect safety and efficiency of the
machine over time, it is necessary to carry out main-
tenance. In particular, it is advisable to ask Technical
Service to carry out an overall check of the machine
at least once a year.
Intervention
GAUGE
Keep the boiler pressure between 0.8 and 1.4 bar.
FILTERS and FILTER HOLDERS
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.
GRINDER-DOSER
Check the dose of ground coffee (between 6
and 7 gr. per stroke) and check the degree of
grinding. The grinders must always have sharp
cutting edges. Their deterioration is indicated by
the presence of too much powder in the grounds.
You should replace the flat grinders after every
400/500 kg of coffee. For conical grinders, replace
every 800/900 kg.
SOFTENER
The build-up of lime scale deposits in the
hydraulic circuit of the machine indicates that
regeneration has been neglected. Use care in
areas where the water is very hard. It will be
necessary to regenerate at more frequent in-
tervals, likewise if there is high consumption of
hot water for tea and so forth.
If the problem cannot be resolved, turn the
machine off and call for Technical Assistance. Do
!
not attempt any sort of repairs.
The descaling of the machine must be carried out
by professional technicians to ensure that such
operation does not lead to release of hazardous
materials for food use.
Greta
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