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1.
Park tractor on a level surface with headlights/work lights (A) 7.5 meters (25 ft) from a vertical wall.
2.
Measure the distance (B) from the center of a headlight/work 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 headlights/work lights on low beam and observe bright areas on the wall.
5.
Adjust headlights/work lights so the upper border of bright area (D) is
at least
one tenth of distance (B)
below
line (C).
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