Operation of the Lights of Ford Antique Automobiles
Operation of the Lights
The lighting system consists of a dash light, two head lamps
and a combination tail and stop light. The head lights and tail light are operated by a switch located at the top of the steering wheel. The headlamp bulbs are of the 6-8 volt, double filament gas filled type.The major filament is 21 candle power, and the minor filament is 2 candle power.The small bulb used in the tail light and the instrument panel light is of the 6-8 volt, single contact, three candle power type. The stop lamp bulb is a single contact, 21 c. p. bulb. All of the lamps are connected in parallel so that the burning out or removal of any one of them will not affect the others. Current for the lamps is supplied by the battery.
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When the car is delivered, the headlamps are properly focused and aligned. Should the lamps get out of focus or alignment they should immediately be refocused and realigned. Ford dealers are equipped to do this work, or if you have the proper facilities you can make the adjustment.
Turn on bright lights.
Focus by means of screw at back of lamps, keeping one lamp covered while focusing the other. Adjust the bulb filament at the focal center of the reflector to obtain an elongated elliptical spot of light on the wall, with its long axis horizontal. In focusing, adjust the bulb to obtain as good contrast and as well-defined a cut-off across the top of the spot of light as possible.
With lamps thus focused for the “bright” filament, the “dim” will be in satisfactory position.
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Loosen nut at the bottom of the bracket and tilt headlamps to the desired angle.
The tops of the bright spots on the 25-foot wall are to be set at a line 33 inches above level of surface on which the car stands. With top lines thus set for an empty car, the head lamps will also have the proper tilt under full loads.
The beam of light from each headlamp is to extend straight forward ; that is, the centers of the elliptical spots of light must be 30 inches apart.