Microwave was making a koud grinding sound

First I unplugged the microwave from the wall receptacle. Next I removed eight screws that let the bottom plate of the microwave hood pivot down with its hinges. Next I removed two screws holding the turn motor in place. I then unplugged the motor and replaced it with the new motor and reversed the above procedures until everything was back in place. I then turned the microwave on and was thrilled to find it working properly again.