Pontiac FIREBIRD 1972 Service Manual page 1318

1972 PONTIAC SERVICE MANUAL
Fig. 12-53 A Series (L-6) Engine Wire Harness Installation
ADJUST
PRE-AIMING INSTRUCTIONS
-
MECHANICAL AlMER
J 6878-01
1. Adjusting Aimer for Floor Level
a. To obtain accurate headlamp aim, the vehiclg
must be placed on a flat surfaced floor area.
b. Place transit Fig. 12-60 target on floor at center
of rear wheel and place transit at center of front
wheel on same side so target is visible in transit
viewing port at top (Fig. 12-71).
c. Adjust screw on back of transit until target split
image merges into one unbroken line.
d. Turn dial on side of transit until bubble in spirit
level is centered.
e. When bubble is centered note "plus" or "minus"
reading on calibrating dial (Fig. 12-72). This fig-
ure indicates degree of floor slope and must be
transferred to each aimer.
f. With a screwdriver, turn adjusting slot of floor
level compensator in each aimer until adjoining
dial reads same as dial on transit (Fig. 12-73).
g. Aimers are now adjusted for use on this specific
floor area. If operation is moved to a new location,
aimers must be readjusted.
2. Vehicle Preparation
a. With vehicle in selected aiming area, turn on
headlamps and make sure all are functioning.
b. Tires should be properly inflated, gas tank at least
half full, spare tire in trunk and no people in car.
Rock vehicle sideways to equalize springs.
c. Clean headlamp lenses thoroughly.
3. Installing Mechanical Aimers J 6878-01
a. While holding aimer in alignment with lens of one
outer headlamp, bring aimer up to and against the
lens. The sealed beam guide points must engage
smooth inner ring of aimer at alignment points
and the sight opening on the side of the aimer
must face toward center of vehicle (Fig. 12-74).
NOTE: An adaptor is available for installing
the mechanical aimen on 7 inch sealed beam
units.