Unplug the Waste King garbage disposal from the outlet. If your Waste King is hard-wired to the house electrical system, turn off the circuit breaker to the disposal.
Stick the rubber handles of a pair of pliers into the garbage disposal just past the flaps of the splash guard. Spread the handles out so they press against the sides of the splash guard.
Turn the pliers counterclockwise and unthread the Waste King splash guard from the disposal drain. The covering on the pliers's handles and the rubber sides of the splash guard provide grip to turn the guard. Lift the splash guard away from the disposal.