Mandatory Maintenance And Check-Up Operations - La Marzocco Linea EE Betriebsanleitung

These operations are in addition to the Maintenance and Periodic Cleaning Operations as specified in Chapter 7.
The following maintenance and check-up operations sould be carried out by a qualified technician.
N.B. These periodic maintenance operations are not covered by warranty.
▪
Replace group gaskets
▪
Replace diffuser screens
▪
Clean auto-fill probe
▪
Check vacuum breaker for proper
operation
▪
Inspect water inlet valve
▪
Inspect drain system for leaks
or clogs
▪
Check flow rate for each group
▪
Rebuild steam assemblies
▪
Replace portafilter baskets
▪
Inspect group valve plungers
▪
Inspect vacuum breaker
▪
Inspect steam boiler pressurestat
▪
Inspect contactor
▪ Check the condition of the inside of boilers and if necessary rinse out with a proper cleaning product allowed for food and beverage
appliances.
EVERY THREE/FOUR MONTHS
▪
Check brew temperature
▪
Check that brew pressure is at
9bar
▪
Check all switches for proper
operation
▪
Check/note water hardness
(Water quality must be within the
range of parameters specified
in the chapter on Installation,
EVErY SIX MoNTHS (in addition to the above)
EVErY YEAr (in addition to the above)
EVErY 3 YEArS (in addition to the above)

9. Mandatory Maintenance and Check-up Operations

otherwise warranty is voided)
▪
Replace over-pressure valve
▪
Accurate control of the tightness at 2,4Nm of each cable on the
terminal block.
If AV Model:
▪
Check shot volumes
▪
Test flowmeter's ohm value (ohm
value is acceptable if greater than
1.8 K ohm, and less than 2.2 K
ohm
If Mp Model:
▪
Rebuild MP valve
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