1997 Mercury Tracer Owner's Manual - Page 174

Maintenance and care Adjusting the horizontal aim 1. With the hood open, locate the horizontal indicator and adjusting screw. 2. Use a 4 mm wrench to turn the horizontal adjusting screw until the reference mark on the reflector extension aligns with the ''O'' reference mark on the horizontal indicator when viewed directly from above. 3. When the horizontal aim has been adjusted, close the headlamp access panel. Adjusting the vertical aim 1. Do not adjust the vertical aim until after adjusting the horizontal aim. 2. With the hood open, locate the bubble level vertical aim indicator. It is visible when viewed from above the rear of the headlamp. 3. With the vehicle on a level surface, use a 4 mm wrench to turn the vertical aim adjustment screw (outboard screw) located on the back of the lamp assembly clockwise or counterclockwise until the bubble in the spirit level is centered when viewed from directly above the bubble. 4. Close the hood. If the vehicle is on a downward or upward slope of not more than 1.2°, the VHAD's bubble level can be used to correct for the effects of the surface slope, provided that the slope is accurately known. 174