Saeco Aulika SUP040R, Service Manual

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AULIKA 04 OPERATING LOGIC
Rev. 00 / July 2012 Page / 07
Notes: * Only with pre-infusion
Single micro gearbox
4.5. Coffee Cycle
Start
When the machine starts, the gearbox gets back in place as follows:
- Microswitch 1 is activated (See following chapter)
- The gearbox changes the direction of rotation and goes back up for about 1-2 mm
- The boiler starts heating the water for ca. 45 sec, absorbing the whole of the heating power to
attain the optimal temperature. After that, the temperature shall remain constant.
Ciclo caffè
1. The coffee grinder starts grinding the beans (managed by the doser microswitch)
2. The doser opens
3. The gearbox (brewing unit) goes into dispensing mode
4. Preliminary dispensing phase (brief activity of the pump, then a brief pause)
5. Product delivery (the pump activation time depends on the quantity of product delivered)
6. The gearbox goes back to the idle position (grounds are automatically expelled)
Main switch
ON
START END
Time
Coffee grinder
Heating
Pump
Gearbox
Brewing unit
Status Heating Ready Coffee cycle
Pulses
(Dosing)
Pump activity
(turbine pulses) based
on the programmed
product quantity
ca.45 sec.
*
04
Microswitch
status
OFF
ON