Opel 1900 1973 Service Manual page 67

Headlight High-Low Beam Control and Passing
Signal
When the headlights have
and low beam selection is made
tional signal lever toward steering wheel. Each ti&
the lever is raised, beam position, will change.
When the headlights are not on, a flashing headlight
signal may be given by raising and lotiering the di-
rectional signal lever. With the headlights on and in
low beam position, raising and lowering the direc-
tional signal lever will also cause the headlights to
flash.
Fog Light Switch
All Rallye models are equipped with two white f?g
lights mounted below the front bumper.
The fog light toggle switch is located on the insty-
ment cluster to the left of the temperature and fuel
gauge cluster.
The fog lights can be turned off at any time by the
toggle switch, but can only be tyrned on when: :
1. The ignition switch on or the ?gine running.!
2. The fog light toggle switch lower half is pushed in.
3. The parking lights and/or low beam headlights are
The fog lights are automatically turned off if the
ignition switch is on and the headlights are switched
to high beam position.
Courtesy Light
The courtesy light illuminates the interior of the Car
when any door is opened. The courtesy light can also
be turned on with all doors closed by tilting the l&s.
GT Headlamp Mechanism
The concealed headlamps are moved mechanically.
Pushing actuating lever on left side of console opens
headlamps and pulling lever closes headlamps. Two
(2) meshing gear segments convert the movement, of
the lever to a rotation of 180 degrees. The pivots of
the headlamps lie below the centerline so that with
headlamps in closed position, the headlamp housing
is flush with front sheet metal. Refer to Group 110,
Section "F", for service procedures on the GT head-
lamp mechanism.
A white indicator lamp in the instrument panel lights
if the headlamps are not completely opened lor
switched on, high
been
by raising the direc-
closed The switches of the headlamp electrical sys-
tem are located behind the left headlamp operating,
mechanism.
MAINTENANCE AND ADJUSTMENTS
HEADLAMP AIMING
The headlamps must be properly aimed in order to
obtain maximum road illumination and safety that
has been built into the headlighting equipment. With
the Guide T-3 type sealed beam units, proper aiming
is even more important because the increased range
and power of this lamp make even slight variations
from recommended aiming hazardous to approach-
ing motorists. The headlamps must be checked for
proper aim whenever a sealed beam unit is replaced
and after an adjustment or repairs of the front end
sheet metal assembly.
Regardless of method used for checking headlamp
aim, car must be at normal weight, that is, with gas,
oil, water, and spare tire. Tires must be uniformly
inflated to specified pressure. If car will regularly
carry an unusual load in rear compartment, or a
trailer, these loads should be on car when headlamps
are checked. Some States have special requirements
for headlamp aiming adjustment, and these require-
ments should be known and observed.
Horizontal and vertical aiming of each seal beam
unit is provided by two adjusting screws which move
the mounting ring in the body against the tension of
the coil spring. There is no adjustment for focus,
since the sealed beam unit is set for proper focus
during manufacturing assembly.
MAJOR REPAIR
HEADLIGHT SWITCH - OPEL 1900. MANTA
Removal
1. Remove instrument cluster cover panel. See Sec-
tion H.
2. Compress retaining springs and pull switch out.
See Figure 1 F- 1.
3. Pull multiple socket off switch.
Installation
panel until clips lock in place.
2. Replace instrument cover and secure with two (2)
screws.