Cadillac 60 Series 1963 Shop Manual page 316

ELECTRICAL SYSTEM
12-35
Guide Points
Alignment Points
Fig. 12-57 Matching Lamp to Headlamp Aimer
headlamp lens, then draw handle back until spring
catches, Fig. 12-58.
c. Horizontal Headlight Aiming
1. Set "Right - Left" dial on zero, Fig. 12-59.
2. Check split image in viewing port. Rotate
aimer slightly if necessary to locate target.
3. If split images are aligned horizontal aim
is correct.
4. If images are not aligned turn horizontal
adjusting screw until split image aligns. Final
adjustment should be made by turning screw in
a clockwise direction to remove backlash.
d. Vertical Headlight Aiming
1. With equipment in place turn knob at "Down-
Up" dial until pointer is at 2 down.
NOTE: Individual State laws may vary and
dealers should check local authorities to insure
compliance.
2. Turn headlight vertical aiming screw coun-
terclockwise until bubble is on car side of center.
Turn screw clockwise until bubble is centered
for correct aim and elimination of backlash,
Fig. 12-59. Repeat on other headlight aimer.
Spring
Vacuum Cup
Engages Lamp Handle " V
Spring Catch
Fig. 12-58 Securing Headlamp Aimer to Lamp
3. Recheck target alignment on each side and
readjust horizontal aim if necessary.
4. Hold aimer and release spring catch, Fig.
12-58. Push handle toward headlight to release
aimer.
5. Repeat horizontal and vertical adjustments
on inner set of headlights.
e. Calibrating Aiming Fixture
Aimer, J-6663, is calibrated at the factory
for use on a level floor. These aimers require
no further change in factory calibration unless
they are dropped or damaged in some manner.
1. With the aid of a good grade carpenter or
stone mason spirit level locate a vertical plate
glass window, Fig. 12-60.
2. Set "Down-Up" pointer on "2 down". Set
"Right - Left" pointer and floor level compen-
sator at " 0 " .
3. Secure aimers to plate glass window 3 to 5
feet apart so split image targets can be located
in the viewing ports.
4. If bubble is centered in vial, vertical cali-
bration is correct. If not centered refer to Note
f for adjustments.
f. Re-Adjusting Headlight Aimer
1. With equipment left in place, turn level ad-
justing screw until bubble is centered on spirit
level to obtain correct vertical adjustment, Fig.
12-61.
2. Turn mirror adjustment screw until target
split image becomes aligned, Fig. 12-62.
47. Headlight Aiming—Screen Method
The factory recommended headlight aiming
specifications for the screen method are listed
below. However, individual State laws may vary
and dealers should check with local authorities.
a. Screen Diagram
Make a headlight aiming screen according to
the dimensions and layout shown in Fig. 12-63.
b. Equipment Set-Up
Make sure headlight aiming screen is mounted
at a point where there will be an ample level
area in front o
r
f screen. It is important that
floor at aiming screen is at same level as the
floor at the point where car is positioned.