Many horizontal and vertical position headlights incorporated in assemblies have graduations that are factory set. Corrections should be carried out on a flat surface and better still, the fuel tank should be full and the vehicle should neither be over loaded nor under loaded. To set the suspension, jump up and down three times side to side, and bounce the front end three times up and down. Pop the hood to check the vertical indicators, the little bubble inside the vial must be over zero and it is permissible to be 0.75 degrees up or down. If needed, spin the vertical aim screw to come to the middle of the bubble without fiddling with the screw that is on the vial. Next, look on the horizontal indicators where at the adjuster you will find a arrow that must be pointing at zero in the gauge wheel. If it does not, turn the horizontal aiming screw the other way as a detrection to correct the problem. For alignment using a screen the ground should be level and the wall on which the screen will be set should be flat, the parking distance should be 25 feet. Slightly align a vertical masking tape line to the wall to the centerline and headlights of the vehicle and this can only be easily done if the vehicle is parked closely to the wall. Once again stabilise the suspension and record the distance from the floor to the center line of each headlight lens and scribe these dimensions on the wall using horizontal masking tape lines. Take a measuring tape and using the headlight lens as a point of reference, draw a vertical masking tape line along the wall up to a particular point. For the left head light the 2-inch square piece of tape should be located 8 inches below the horizontal that was drawn and 5 inches, to the right of the vertical line. For the right head light the 2-inch square piece of tape should be located 7 inches below the horizontal that was drawn and 9 inches to the right of the vertical line. If getting to turn on the low beam make adjustment up on the screws in a way that get to focus the hot spot of every headlight to its likely aims spot. If alignment problems remain or if the beam pattern looks wrong, consult the service section of a dealer or an authorized repair shop. Again, for fog light adjustment one has to park the vehicle 25 feet from a flat wall, suspend the fog light and measure the distance from the floor to the horizontal center line of each fog light lens and use a 3 feet horizontal tape along each of the fog lights. With the fog lights engaged, turn the screws until the extreme points of the projected fog light beam are about 4 inches below the horizontal tapes line.
