_—— ey reece as een ene 4 GENEFAT OF =i MoU NNINGHAM _ OELCO IGNITION LIGHTING SWITCH Bery Lames Si ied Ff c CUNNINGHAM MODEL V, SERIES 3 (1918-19) SERIAL NOS. V/3,1601 TO V/3-2050 WESTINGHOUSE GENERATING, STARTING AND LIGHTING SYSTEM DELCO IGNITION BATTERY.—Battery is 6 volt, 115 ampere-hour. The positive (++) terminal is grounded. IGNITION.—Model No. 2162. Distributor Model No. 5178. Breaker contacts sep- arate .018 inch. They are made of tungsten. When the condition of the contacts af- tects the ignition, remove anu resurface with fine emery cloth or against the flat side of an emery wheel, finishing on a hard oil stone. UILING.—Put 4 or 5 drops of light engine oil in each of the ignition unit oilers every two weeks. If the track of the rotor button in he distributor head is not well polished, peply a small amount of vaseline with a soft cloth. If the car 1s driven more than 5 miles in two weeks, these attentions must be given every 200 miles. TIMING.—Breaker contacts begin to separate when the piston entering power stroke is on top dead center, spark control Jever 2 inches from fe fully retarded position. (First see that the breaker assembly is fully retarded when the control lever is in the duly retarded position. The breaker contacts are beginning to separate when the distrib- utor rotor is directly opposite the V notch on the rim of the case. FIRING ORDER.—The firing order is 1R, 4L, 3R, 2L, 4R, IL, 2R, 3L. SPARK PLUG GAPS.—Spark plug gaps are .023 to .027 inch. STARTER.—Frame No. 751. Starter is connected to the engine through a Bendix drive. Starter Data Torque R.P.M. Amperes 25 Nbe ft e dere PAS Occ IAD 5.0 Vs EE 15 0 aes er we ZOD 10.0 Ib. ft. 7584 ce : a OILING.—Put 5 or 6 drops of light engine oil in each of the starter oilers every month. GENERATOR.—Frame No. 780-R. Generator voltage regulation is by combined magnetic and mechanical cam regulator. Maximum output of generator is 15 amperes at 6.5-7 volts, reached at 1800 R.P.M. of the armature or 25 miles per hour. On open circuit, generator voltage is 8.0 at 1800 R.P.M. To adjust the cam regulator, loosen the nut C and turn the screw D until the air gap between D and E is .003 inch, when the rider B is on the highest point of the cam A. Further adjustment to obtain the specified action is made by bending the stop F. Resistance of regulator windng is 10 ohms. Resistance of the part of the resistor which is in series with the regulator coil – io ohms. Resistance A the part of the resistor connected across the contacts is ohms. OILING.—Put 5 or 6 drops of light engine oil in each of the generator oilers every two weeks, If the car is driven more than 500 miles in two weeks, the oiling must done every 500 miles. RELAY.—Relay is mounted in the generator frame. Relay closes at 400-450 R.P.M. of the armature or 6-8 miles per hour, and opens at 350-400 R.P.M. of the armature or 5-7 miles per hour. Adjust the armature stop so that relay contacts open when the discharge current is 0-3 amperes. Adjust spring tension so that relay closes when the voltage of the generator reaches 5.8 to 6.1 volts, battery disconnected. Air gap between relay armature and coil core is .005 inch, contacts closed. Contacts separate .012 to .18 inch. Resistance of the shunt coil with resistor is 56.5 ohms. Clean relay contacts by drawing unglazed paper between them. If badly burned or pitted, resur- face with well worn No. 00 sandpaper. Remove all grit. Adjust before again putting into service. LAMPS.—Head lamps are 6-8 volt, 21 cp. Fender lamps are 6-8 volt, 5 cp. Dome and es lamps. are 6 -8volt, 4 cp. Dash lamp is 6-8 volt, 3 cp. Tail lamp is 6-volt, cp. CIRCUIT BREAKER:—The vibrating circuit breaker on the back of the switch begins to operate at 25-30 amperes, limiting the current to 10-15 amperes.