Use a Phillips #2 screwdriver to loosen the two screw terminals securing the power cord wires to the main switch.

Remove the power cord wires from the main switch.

Take note of which lead connects to which terminal for reassembly purposes.

During reassembly, if the replacement power cord is not pre-fitted with crimped wire ends, ensure about a 1/2" of insulation is stripped from the end of the wires. Twist the wire strands before inserting them into the terminals.