Plug the Pro-Blender's motor base into an appropriate 120v outlet. Jar: Place the jar on the motor base, seating it flat on the rubber bottom. Make sure that ingredients are placed properly and not in places where the blades can encounter jamming. Secure the lid on the jar's top before operating the blender.
Set the side soup/pulse switch to the middle position. Rotate the timer control all the way to the left "Off" position. Confirm that the right side on/off switch is in the "Off" position.
Turning the Blender On:
Once all the controls are set to the safe/off positions listed in the "Controls" section above, flip the right side on/off switch upward to "On". If successful, you will hear an audible beep confirming the blender is on and ready to operate. The blender will not spin in this state, it is just ready to be used. Once on, you may use the left side soup/pulse switch to pulse the blender motor OR use the center rotating selector to pick a rotational speed. This step will cause the blender motor to spin, so ensure the jar's lid is pressed on tightly.
Stopping the Blender:
If using the left side soup/pulse switch for temporary blending, simply let go of the control to stop the blender from spinning. If using the center rotating selector for ongoing blending, simply rotate the selector counterclockwise (top of the selector should spin towards the left) to the "Off" position to stop the blender. When using either the left or center motor controls, you can immediately turn the blender off by flipping the right side on/off switch downward to the "Off" position.