Visual Headlamp Aiming Procedure (Preferred)

All equipment for testing headlamps must comply with the SAE Recommended Practice for Headlamp Inspection Equipment.

If a headlamp testing machine is used, ensure that the machine gives results equivalent to the results obtained using the screen procedure described below. Ensure that the machine is in good repair. Ensure that the machine is in adjustment. Use the machine in accordance with the manufacturer's instructions. The machine using a photoelectric cell or cells in determining aim should also include a visual screen. Project the beam pattern upon the screen in proportion to the pattern's appearance and aim at 7.62 m (25 ft). The screen should be visible to the technician adjusting the headlamps. The screen should have horizontal and vertical reference lines that permit visual appraisal of the headlamp beam.