Maintenance And Cleaning; Safety Precautions; Periodic Maintenance; Maintenance After A Short Period Of Machine Inactivity - Wega WBAR EVD Use And Maintenance Manual

7. MAINTENANCE AND CLEANING

Safety precautions

7.1
Carefully read the instructions provided in chapter "I. SAFETY PRECAUTIONS" on page 25.

Periodic maintenance

7.2
Besides carrying out maintenance activities according to the frequency specified in the "Periodic maintenance table", a general
inspection must be carried out on the machine at least once a year by a Technician.
Component
PRESSURE GAUGE
PRESSURE GAUGE
FILTERS AND FILTER
HOLDERS
GRINDER-DISPENSER
WATER FILTER
WATER SOFTENER
HEATING UNIT

Maintenance after a short period of machine inactivity

7.3
"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, the Technician must replace all the water inside the hydraulic circuits as
indicated in para. "Periodic maintenance" on page 41.
Furthermore, all periodic maintenance operations must be carried out, see the previous paragraph.
Component problems highlighted in grey require the machine to be switched off and one of the Technicians to be called out.
USER manual
Keep checking 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 - 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.
Check the ground coffee dose (between 6 and 7 grams per 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 recom-
mend contacting 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 filter cartridge or regenerate the water softener as often as
specified by the manufacturer.
We recommend calling out the Technician at least once every three months to
replace the water in the heating unit.
Type of operation
WBAR
X
X
X
X
X
X
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