Maintenance And Cleaning; Safety Precautions; Ppe Features; Maintenance - Wega ALE Use And Maintenance Manual

7. MAINTENANCE AND CLEANING

7.1 Safety precautions

Carefully read the instructions provided in
chapter "I. SAFETY PRECAUTIONS" on page
3.

7.2 PPE features

When installing the machine, the following PPE is required:
The use of protective gloves is mandatory.

7.3 Maintenance

7.3.1 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 GAUGE
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 0.08 and 0.14 MPa (0.8
and 1.4 bar).
Periodically check the water pressure when coffee is being dispensed: check the
pressure indicated on the gauge, which must be in the range of 0.8 to 0.9 MPa (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. "8.3.3 Dispens-
ing group maintenance" on page 38.
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 procedure as instructed by the manufacturer.
Take care in areas where the water is very hard. The water will need to be regener-
ated 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. Grinders must always have sharp cutting edges. Too much powder in
the grounds is an indication that the coffee is deteriorating. We recommend con-
tacting the Technician to replace the flat burrs after every 400/500 kg of coffee,
or after every 800/900 kg for conical burrs.
Replace the water in the heating unit as indicated in para. 6.7.
Type of operation Quarterly
X
X
X
X
X
.
X
X
Yearly
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of