I usually go out in the street at night with the car level I cover the driver side headlamp and adjust the right side so it runs straight with the edge of the street/road and the concentrated beam about 60 feet out.
Then I cover the right side headlamp and adjust it so the concentrated beam is about a two feet to the left of where the right one was, in other words angled toward the right when on low beam.
Then check the high beam using the same method. Cover one then the other. At that point the driver side on high beam should have moved the concentrated beam out further and to the left more.
Then I sit in the car and go from low to high and see if it's where I like them.
May not be right, but it has worked for me for 35 years.
