How can I safely replace a dryer electric cord?

To safely replace a dryer electric cord, first unplug the dryer from the power source. Then, remove the old cord by unscrewing the terminal block screws and disconnecting the wires. Next, attach the new cord by connecting the wires to the terminal block according to the manufacturer's instructions. Finally, secure the cord in place and plug the dryer back in to test it. If you are unsure, consult a professional electrician for assistance.