There are two installation guidance methods for the cooking machine according to different models: one is the model without switch button (such as 350), aim the cup at the slot of the main machine, rotate the cup (usually clockwise), and hear a bang, which means that the micro switch is turned on and can work when it is energized. 2. For models with switch buttons, align the cup buckle with the slot of the host computer and tighten it in the "close" direction. When you hear a bang, it means that the microswitch is turned on, and you can turn the power-on switch knob to the corresponding position to work.