Starbucks Barista Teardown

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Traduction de l’étape 6

Étape 6

Disconnect the spade connectors from the digital switch near the steam valve knob.
When you open the steam valve knob (to steam your milk), a cam attached to its shaft presses the digital switch, closing the circuit. This either starts the pump, gives power to the heater, or both, to produce steam (we don't have a circuit schematic).

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