Maintenance And Cleaning; Safety Precautions; Ppe Features; Maintenance - Astoria SABRINA SAE DISPLAY Use And Maintenance Manual

Sabrina
9.

MAINTENANCE AND CLEANING

Safety precautions

9.1
Carefully read the instructions provided in chapter 2 on page 7.

PPE features

9.2
When maintaining and cleaning the machine, the following PPE is required:
The use of protective gloves is mandatory

Maintenance

9.3
9.3.1 Scheduled maintenance
Carry out scheduled maintenance according to the instructions in the table below.
If the machine is used intensively, the checks need to be performed more frequently. The envisaged operations
are outlined in the following pages.
Component
PRESSURE SWITCH
FILTERS AND FILTER
HOLDERS
DISPENSING GROUP
WATER FILTER
WATER SOFTENER
GRINDER-DISPENSER
HEATING UNIT
46 72
of
Type of operation
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. 9.3.3 on page 48.
Replace the water filter cartridge at the frequency indicated by the manufacturer.
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. The water will need to be regenerated more
frequently, especially if the machine is used intensively.
Check the ground coffee dose (around 7 grams each 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 deteriorating.
We recommend calling the Qualified Technician to replace the flat grinders after every
400/500 kg of coffee. For conical grinders, replace them after every 800/900 kg.
Replace the water in the heating unit as indicated in para. 7.9 on page 32.
Quarterly Yearly
X
X
X
X
X
X
X
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