1928 Cadillac - GM Heritage Center

82 LIGHTING SYSTEM
One-half of distance between centers of lamps
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Fig. 1
Lighting switch at bottom
of steering gear.
Cadillac 341-A and La­
Salle 303
Pig. 2
Lighting switch at bottom
of steering gear.
Cadillac 341-B and La­
Salle 328
....
25 feet to front
lamps
Fig. 5
Markings for adjustment of head lamps
Focus adjusting screw
(outer screw}
Tilt adjusting screw
(inner screwis
(a) Upper beam of right head lamp
Fig. 3
Head lamp adjusting screw.
Cadillac 341-A and B; La­
Salle 303,second type.and 328
Adjust screw until a*
small beam of high intensity
is clearly defined
(see (a) Fig. 6)
Fig. 4
Head lamp adjusting screws.
LaSalle 303, first type
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(b) Lower beam of right head lamp
(c) Upper beam with lens removed
Fig. 6
Light beams with lamp properly focused and aimed.
Cadillac 341-A and B; LaSalle 303, second type,
and 328.
After adjusting one head lamp, repeat
adjustment on other lamp
(a) Left-hand lower beam without lens
Slot for installing
soldered terminal
Fig. 8
Disconnecting wires on LaSalle 328 head lamp.
Slotted coupling plugs used only on Cadillac
341-B and LaSalle 328. Coupling plugs are at
top of conduits on Cadillac 341-A and B
(b; Left-hand upper beam without lens
Fig. 7
Light beams with lamp properly focused and aimed.
LaSalle 303 with first-type head lamp. After adjusting
one lamp, repeat adjustment on other lamp
Plate 45. Lighting system details.