Ford 2001 Mercury Cougar Owner's Manual page 259

Maintenance and care
52 mm
Height of reference line on wall
5. Turn on the low beam
headlamps. Notice that both the
driver's side lamp and the
passenger's side lamp create similar
light patterns on the wall (see Fig.
1). If the left side of the cut off line
of either lamp is above or below the
reference line on the wall, the
vertical aim of that lamp requires
adjusting.
6. On the lamp requiring
adjustment, turn the adjusting
screw marked with V1 in the
desired direction (up or down).
The vertical aim is correct when
the horizontal cut off line on the
left side of the lamp's light pattern
is vertically lined up with the
horizontal reference line on the
screen as shown in Fig. 1.
7. Turn the adjusting screw V2 in
the same direction and by the same
number of revolutions as V1.
Note: The adjusting screws V1 and
V2 may be turned at the same time
or V1 before V2. Never turn V2
before V1. Doing so will cause
mis aimed headlamps.
8. Repeat steps 6 and 7 above on
the other headlamp if required.
7.6 meters
Height of low beam lamp bulb center
Fig. 3
3 meters
Reference line
(52 mm below
low beam lamp center)
Fig. 4
Center line