How do I change the voltage from 120V to 240V on my radial arm saw?

Have a qualified electrician change the voltage on the main power system. The procedure involves removing the blade, lifting the motor cover to expose the switch, using a small screwdriver to slide the dual voltage switch to the 240V position, and replacing the 120V plug with a UL listed 240V, 15 amp, 3-prong plug. Do not modify the control cut cord, which is set up for 120V AC only. (Page 9)