Pontiac FIREBIRD 1972 Service Manual page 1329

CHASSIS ELECTRICAL
ASM
.
w
BEZEL
Fig. 12-65
B
Series Front Lamps Installation
a. Set "down-up" scale to read "0" on both aimers.
b. Turn headlamp vertical aiming screw counter-
clockwise until spirit level bubble is on car side of
center.
c. Now turn aiming screw clockwise until spirit
level bubble is centered.
d. Make vertical adjustment on other side of car in
same manner.
On B and A Series proceed to adjust inboard units by
repeating the above procedure.
Remove aimers by releasing the spring catch at rear (bot-
tom) of aimer and push handle "Y" forward. Do not
attempt to remove aimers by pulling them away from
headlamp lens
-
slide suction cup downward and away
from lens.
CALIBRATING AIMERS
-
J 6878-01
Aimer J 6878-01 is calibrated at the factory for use on a
level floor. They require no readjustment of factory cali-
bration unless they are dropped or damaged in some man-
ner.
1. Using a carpenter or stone mason spirit level of
known accuracy, locate a vertical plate giass window
or smooth surface that aimer suction cups will adhere
to (Fig. 12-76).
2. Set aimer "down-up" pointer to read "0".
3. Set aimer "right-left" pointer and floor compensator
adjustment to read "0".
4. Secure aimers to glass or smooth surface three to five
feet apart so split images can be located in viewing
ports.
5. If spirit level bubble is centered, vertical calibration
is correct. If not, turn level adjusting screw until
bubble is centered (Fig. 12-77).
6. The horizontal calibration is correct if target split
images on opposite aimers are aligned as one continu-
ous line in the viewing port. If not, turn mirror ad-
justing screw until target split image becomes aligned
(Fig. 12-77).
NOTE: A calibration nng
H-5 is now available
for installing on aimer before mounting on glass
window or smooth surface for calibration.