There are several ways to raise a cantilever umbrella, depending on the model and make of the umbrella. Some models have a crank handle that is used to raise and lower the canopy, while others have a push-button or similar mechanism. In most cases, raising the umbrella is simply a matter of turning the crank handle or pushing the button until the canopy is fully extended. Some models may require additional steps, such as pulling out support rods or adjusting tension screws, but these should be clearly marked and easy to follow. If you are unsure how to operate your particular model of cantilever umbrella, consult the owner's manual or contact the manufacturer for more information.