HORN GENERATOR CONDENSER _ aT oe | HORN BUTTON IH® SIDE LIGHT BATTERY DISTRIBUTOR 3L (®) RESISTANCE UNIT ¥ Yu © St LIGHTING AND 4GNITION SWITCH LOCKOUT CIRCUIT BREAKER CADILLAC MODEL 61 (1922-23) DELCO GENERATING, STARTING AND LIGHTING SYSTEM DELCO IGNITION BATTERY.—Exide, Type 3-LXRV-15-2, 6 volt, 130 ampere-hour. The positive (+-) ter- minal is grounded. IGNITION.—Ignition Coil Model No. 2115. Distributor Model No. 5239. Breaker con- tacts separate .020 inch for new cars; or for a new set of contact arms, and set contact gaps to .015-.018 inch for cars having been driven over 2000 miles on the set of contact arms. They are made of tungsten. If the condition affects ignition, remove and resurface on a medium hard oilstone. Oiling.—Remove the breather pipe at the rear of the distributor housing and pack the gear compartment with soft cup grease every 2000 miles. Timing.—Breaker contacts begin to separate when piston on compression stroke is 1 21/32 inches in advance of top center, spark control lever and breaker assembly in the fully advanced position. Firing Order.—The firing order is 1L, 2R, 3L, IR, 4L, 3R, 2L, 4R. Spark Plug Gaps.—Spark plug gaps are .023 inch. STARTER-GENERATOR.—Model No. 98. The direction of rotation is counter-clock- wise, viewed from the starter commutator end. The starter cranks the engine at 90- 100 R.P.M., taking 140-150 amperes. The starter is connected to the engine through a set of reduction gears meshed by the operator. Lock torque is 6 lb. ft. at 3 volts. Running free the starter takes 70 amperes at 6 volts. The tension of the starter brushes should be 214 to 234 pounds each. GENERATOR.—Generator current regulation is by the third brush system. The direction of rotation is clockwise, viewed from the generator commutator end. Amperes Generator Data.—M.G. 98 R.P.M. 0 420 2 500 i ica A MCE craeeeee cece |, VAD ceccwsasasvsinssaepsaf -ccssucsosusnssossenssnnrsosmesnsnsennvicnnes 1500 fc | SE AY eer 4} |, | To adjust the charging rate, loosen the generator cover band and the two screws holding the third brush mounting arm. Shift the third brush in the direction of ar- mature rotation (clockwise) to increase the charging rate and in the opposite direc- tion to decrease the charging rate. Tighten the screws after making the adjust- ment. The field current is 2.5 amperes at 6 volts. The tension of each of the gen- erator brushes should be 114-134 pounds. Oiling: — Put 8 or 10 drops of light engine oil in each of the motor-generator oilers every two weeks or each 500 miles. Once each year remove and clear the motor and generator clutches and repack with vaseline. RELAY.—There is no relay. The circuit between the generator and battery ix controlled by the ignition switch. LAMPS.—Head lamps are 6-8 volts, 21 cp. Dimmer and side lamps are 6-8 volts, 4 ep. ° set and tail lamps are in series and are 3-4 volts, 2 cp. nneau lamps are volts, 2 cp. CIRCUIT-BREAKER.—A vibrating circuit-breaker takes the place of fuses. It requires 25 amperes to start the vibrator but 10-15 amperes will cause it to continue. A lock- ont circuit breaker protects the horn, backing lamp and signal lamp circuits, A cur- rent of 25-30 amperes causes it to open the circuit.