Locate the vehicle so that it is square with the screen and the front of the headlamps, directly over a reference line which has been painted on the floor.
Locate the center line on the aiming screen so that the aiming screen is in line with the center of the vehicle.
2.1. Mark the center of the front and rear windows with narrow strips of masking tape.
2.2. Use the masking tape strips in order to locate the center line (2) of the aiming screen directly in line with the vehicle axis (8).
A marked screen
An adequate test area
Aiming Area Required
A specific aiming area in a darkened location is desired. Ensure that the room is sufficient for the vehicle and for an additional 7.6 m (25 ft) measured from the face of the lamps to the front of the screen.
Ensure that the floor on which the vehicle rests is flat and level with the bottom of the screen. If the floor is not level, compensate. Aiming Screen
Ensure that the screen includes the following provisions:
Is 1.5 m (5 ft) high and 3.6 m (12 ft) wide
Has a matte white surface well shaded from extraneous light
Is properly adjusted to the floor on which the vehicle stands
Make provisions for moving the screen so that it can be aligned parallel with the rear axle.
Make provisions for moving the screen so that a horizontal line drawn perpendicularly from the centerline of the screen will pass an equal distance midway between the two headlamps.
The screen is provided with the following components:
A fixed vertical centerline
Two laterally adjustable vertical tapes
One vertically adjustable horizontal tape
If a regular commercial aiming screen is not available, the screen may consist of a vertical wall having a clear uninterrupted area of approximately 1.8 m (6 ft) high and 3.6 m (12 ft) wide. Finish the surface with a washable non-gloss white paint.
After the aiming screen has been set up, paint a reference line on the floor directly under the lens of the lamps in order to indicate the proper location of the headlamps when they are being aimed.
Saturday, May 30th, 2009 AT 5:58 PM