Fiat 850 Sedan 1968 Shop Manual page 345

FAMILY
LIGHTING SYSTEM SPECIFICATIONS AND DATA
Twin headlamps . . . .
two
337
Double filament bulb:
high beam filament . . . . .
- asymmetric low beam filament
License plate lamp
Globular bulb
Inner lighting.
Bulb incorporated in rear view mirror
Control switch:
- toggle type . . . . . .
N0
2
lamps on pillar posts
Control switch:
- toggle type
HEADLAM PS
45 - Watt
40 - Watt
one
5 - Watt
5 - Watt
on mirror frame
5 - Watt
on lamp shell
Removal.
To take down headlarnps proceed as follows:
- back out rim lock screws (3,
fig.
552) and
remove the rim;
- work on lamp unit ring retainer screws (I,
fig. 552) and remove complete headlamp.
To replace bulbs, snap out spring retainers and
remove the bulb
I
which is inserted by a flange
coupling.
Aiming.
If
headlarnps have been removed, aiming is re-
quired after installation.
Set the car in the following conditions:
at nO load;
- with tires inflated to recommended pressure;
- on a level surface, 16' 5" (5 m) apart from an
opaque white screen; make sure that car centerline
is square to screen face.
Draw two pairs of vertical lines a-a and a'-a' on
the screen (fig. 553). These lines should be equally
spaced from the perpendicular to car longitudinal
axis and respectively 29
1/ 16 "
(738 rom) and 41
3/ 111 "
(1,046 rom) apart (A and A'), which correspond to
Fig. 55? - Headlamps without rim.
1. Lamp unit ring retainer screws. - 2. Screws. vertical adjustment
of light beam. - 3. Rim screw holes. - 4. Screws. horizontal adjust·
ment of light beam.
the center-ta-center distance of inner and outer
headlights.
Draw two horizontal lines b-b and h' - b' on the
screen at the following distance from ground:
- B = C - I
9/ 16 "
(4 cm), new vehicles or vehi-
cles with suspensions renewed; B
=
C - 1
3/ 8 "
(3.5 cm), settled vehicles;
- B' =C
_19/ 32
"(1.5cm),newvehicles,vehicles
with suspensions renewed and settled vehicles;