F U N C T I O N T E S T S
8)Switch on coffee machine.
9)After heating up, press the "small cup" button.
10)Open the valve until water begins to flow.
11)Close the valve until the pressure gauge indicates 12 bar.
Constantly monitor the pressure gauge and if required readjust the valve. As the temperature increases, so does the pressure, readjust the pressure to 12 bar when required.
12)Carry out measurement for approx.
30 sec.
13)Control measuring cup: at least 60 120 ml of water must be in the measur ing cup.
14)Open the valve and let water flow out of the pressure tester.
Notices: |
|
• Should < 60 ml leak out, then the pump | • Large deviations in indicated pressure |
is defective or there is a leak in the | while measuring (± 4 bar) means that |
water system. | the pump is defective. |
9.4 Pressure and leakage checks
Check the following parts of the coffee machine for leakages:
•Compact brewing unit
•Hose connections
•Thermoblock
•Pump
•Self priming device
Dangerous mains voltage inside the coffee machine!
Do not touch any parts under voltage while checking for leakages!
Dangerous hot parts under pressure inside the coffee machine!
Do not touch any hot/pressurized parts while checking for leakages! Always wear protective goggles.
Citiz service manual | 133 |
