GRAY MODEL §S (1925-26) AUTO-LITE GENERATING, STARTING AND LIGHTING SYSTEM AUTO-LITE IGNITION Ay BATTERY—U. S. L., Type 3-CVX-5X. 6 volt. Starting capacity is 96 amperes for 20 ta minutes. Lighting capacity is 5 amperes for 16.8 hours. The positive (++) terminal is grounded. IGNITION—Coil Model 1G-4063. Distributor Model IG-4112-A. Breaker contacts sep- arate .020-.024 inch. Resurface contacts with a fine, flat jeweler’s file or on a medium hard oilstone. Distributor is of the manual type. Manual advance is 50°. ae current is 1-3 amperes engine running and 3.4-5 amperes with engine stopped. Oiling—Put 4 or 5 drops of light engine oil in the oiler on the side of the distributor housing every week or each 250 miles if the car is driven more than 250 miles in a week. Put a small bit of vaseline on the face of the breaker cam under the bumper on the breaker arm every month. Timing.—Breaker contacts begin to separate when piston No. | entering power stroke reaches top dead center with the spark control lever and breaker assembly in the fully retarded position. The firing order is 1-3-4-2. BREAKER bea Order.— Spark Plugs.—Spark plug diameters are 7 inch. Gaps are .025 inch. <= "e¥. STARTER.—Model MO-4102. Starter is connected to the engine through a Bendix STII I= - ~ cenerator drive. The direction of rotation is counter-clockwise, looking at the commutator end. Starter brush tension should be 114-1!4 pounds each. Starter cranks the rtf ---4 engine at 175 R.P.M. taking 125 amperes at 5 volts. NOAA } Starter Data iT Vi T7) i Torqu R.P.M. Volts Amperes — 2) Ob: ft.2 hy Fee. AA [Sa eee 45 (Without Bendix) ucutmg xD LL 0) o Boke Fréecccuces | Teeter rera terre 50 (With Bendix) faxmiod SWITCR JHTTEON COM V] mea hal © alia, i 1700; ee +) eel ea 180 Bo PrcchsAscscQecs y {! REY co Se ee es 315 7) ef sete 7x, Vee el eee AS bat suse 395 Lay ann Lock.......cscssecessene 36, ene ee 490 Oiling —Put 5 to 10 drops of light engine oil in the oiler on the drive end of the starter every month or each 1000 miles if the car is driven more than 1000 miles in a month. The commutator end bearing requires no attention. GENERATOR.—Model GW-4101. The direction of rotation is counter-clockwise, look- ing at the commutator end. Generator current regulation is by the third brush system. To adjust the charging rate, remove the commutator cover band and shift the third big mounting bracket by tapping the mounting stud with a screw- driver. Shift the third brush in the direction of armature rotation to increase the charging rate and in the opposite direction to decrease the charging rate. Maximum charging rate is 15 amperes at 8 volts. OO fff ~ ~ wo — pasH amp SWITCH (© me Te : ‘ li T SWITCH i hl (6) STOP LIGHT SWITCH Generator Data on Cold Test Hot Test rr-) a Amperes Volts R.P.M. MP.H. Amperes Volts R.P.M. M.P.H. § Bs er eee 6102 8 Dios) nok eet y | | rs 10 Sell: Wiles ee 0 Be ae MY cro Oc el cs ecsccsczsics 1000.20.52 13.5 TO. we cece 1400............ 18 4 S22 145022225 19 Running freely as a motor generator draws 5 amperes at 6 volts. Shunt field cur- rent is 2.5 amperes at 6.2 volts. Generator brush tension should be 114-112 pounds each. Oiling.—Put 4 or 5 drops of light engine oil in the oiler on the commutator end of the generator every two weeks or each 500 miles if the car is driven more than 500 AYA miles in two weeks. The drive end bearing is oiled by splash from the gears. WW RELAY.—Model CB-4007. Relay is mounted on the generator. Relay contacts close when the voltage of the generator reaches 7-7.5 volts and open with a discharge current of .5-2.5 amperes. Contacts separate .025-.035 inch. Air gap between armature and coil core is .010-.030 inch, contacts closed. LIGHTING.—Head and stop lamps are each 6-8 volts, 21 cp. S. C. Dash and tail lamps are each 6-8 volts, 2 cp. S. C. FUSES.—Generator field fuse is 5 amperes. Lighting fuse on switch is 20 amperes. TAIL LIGHT