[Fig. 90] shows diagram of operation and wiring of the Bijur electrical system used on Jeffery 4-cylinder car.
If the pinion and flywheel teeth do not mesh properly do not hold the starting pedal down, release it and after a few seconds pause, depress the pedal again.
If the gas motor does not start firing promptly after spinning it with the electric motor, do not continue to spin it, but see that the proper adjustments for starting have been made and that there is gasoline in the carburetor, and that the ignition is in working order.
Continued spinning of the gas motor by the electric motor will not damage the electrical equipment but constitutes a useless drain on the storage battery and should be avoided.
Wiring.—[Fig. 90] shows the circuits for all electric appliances on the Jeffrey-4 car. The various units are wired on the two-wire system. The “out of focus” filaments in the head lamp bulbs are wired on the three-wire system, the chassis acting as a neutral wire, one side of the “out of focus” filament being grounded in the head lamps. The “in focus” filaments are on the two-wire system.
The dash lamp is on the tail lamp circuit and is so arranged that these two lamps are always in operation when any combination of head lamp filaments are in use.
Fuse Circuits.—Each head lamp is separately fused, the current for both filaments in each head lamp bulb passing through one fuse.
| GROUND TO OIL PIPE | ||||||
| GROUNDED TO INSTRUMENT ASSEMBLY | ||||||
| RIGHT HEAD LIGHT | GENERATOR | |||||
| DASH LAMP | ||||||
| SWITCH | INDICATOR | |||||
| CYLINDERS 1 2 3 4 | CONNECTIONS THROUGH SWITCHIN “DIM” POSITION | |||||
| FUSE AND JUNCTION BLOCK | ||||||
| HORN | CONNECTIONS THROUGH SWITCHIN “ON” POSITION | |||||
| MAGNETO | HORN BUTTON | |||||
| MOTOR | STARTING SWITCH | BATTERY | WIRING FOR 6-CYLINDER MODEL661 IS THE SAME AS FOR 4-CYLINDERMODEL 462, EXCEPT FOR HIGH TENSIONLEADS BETWEEN MAGNETOAND SPARK PLUGS. | |||
| LEFT HEAD LIGHT | ||||||
| NOTE:—DOTTED LINES INDICATE PERMANENTCONNECTIONS BETWEEN FUSECABINET, DASH LAMP, CURRENT INDICATORAND SWITCH. CONNECTIONS AS SHOWNFACING FUSE CABINET. | SWITCH GROUNDED | REAR | ||||
Fig. 90. Wiring Diagram—Jeffrey-Four