1998 Lincoln Mark VIII Owner Guide 1st Printing - Page 154
1998 Lincoln Mark VIII Manual
Page 154 highlights
Maintenance and care The following procedure assumes that the vehicle's front structure is properly aligned. If the vehicle has been in an accident requiring the front end of the vehicle to be repaired, the horizontal indicator should be recalibrated by the service facility. Horizontal aim adjustment 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 "0" reference mark on the horizontal indicator when viewed directly from above. 3. When the horizontal aim has been adjusted, close the headlamp access panel. Vertical aim adjustment The numbers shown on the vial indicate beam direction in degrees up or down. 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 the above rear of the headlamp. 3. Use a 4 mm wrench to turn the vertical adjusting screw until the reference mark on the reflector extension aligns with the "0" reference mark on the vertical indicator when viewed directly from above. 4. Close the hood. 155