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8. Mandatory Maintenance and Check-up Operations
▪
Check/note water quality
(Water quality must be within the
range of parameters specified
in the chapter on Installation,
otherwise warranty is voided)
▪
Replace group gaskets
▪
Replace diffuser screens
▪
Check filter baskets and
springs condition
▪
Inspect drain box and hose for
leaks or clogs
▪
Check all buttons for proper
operation
▪
Check brewing pressure
▪
Check expansion valve
operation
▪
Check flow-rate for each group
▪
Check doses consistency (if AV)
▪
Check steam valves for proper
operation
▪
Check vacuum breakers for
proper operation
▪
Clean auto-fill probes
▪
If ABR: run “scale test”
These operations are in addition to the Maintenance and Periodic Cleaning Operations as specified in Chapter 6.
The following maintenance and check-up operations sould be carried out by a qualified technician.
The time required for the periodic maintenance is determinated by the quantity of daily work and/or coffee consumption.
N.B. These periodic maintenance operations are not covered by warranty.
▪
Check the condition of boilers and, if necessary, take them out for proper descaling.
EVERY THREE/FOUR MONTHS
EVERY YEAR (in addition to the above)
EVERY 3 YEARS (in addition to the above)
▪
Inspect solenoid valves
▪
Replace vacuum breakers
▪
Inspect expansion valve
▪
Inspect electrical wiring
condition
▪
Replace safety valve
▪
Inspect flowmeter impellers
(if AV)
▪
Accurate control of the
tightness at 2,4Nm of each
cable on the terminal block.
EVERY SIX MONTHS (in addition to the above)
▪
Replace filter baskets
▪
Fit steam valve rebuild kit
▪
If ABR: calibrate scales
▪
If ABR: check weight of
precision portafilters
