Headlamp Testing Machine

Visual Headlamp Aim Adjustment & Inspection:

Headlamp Testing Machine

If a headlamp testing machine is used, it shall give results equivalent to those obtained using the screen procedure shown in the illustration. It shall be in good repair and adjustment, and shall be used in accordance with the manufacturer's instructions. The machine using a photoelectric cell or cells to determine aim should also have a visual screen upon which the beam pattern is projected proportional to its appearance and aim on a screen at 7.6 m (25 feet). Such visual screen shall be plainly visible to the operator and should have horizontal and vertical reference lines to permit visual appraisal of the lamp beam.