1.
Park tractor on a level surface with head lights (A) 7.5 meters (25 ft) from a vertical wall.
2.
Measure the distance (B) from the center of a head light to the ground.
3.
Mark a horizontal line (C) on the wall, the same distance from the ground as (B).
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4.
Set head lights on low beam and observe bright areas on the wall.
5.
Adjust head lights so the upper border of bright area (D) is
at least
one tenth of distance (B)
below
line (C).
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