TM 5-3805-262-102-1. INSTRUMENT PANELS (CONT)a. Right Instrument Panel (Cont).(4) Vehicle Lights Switch.MAIN SWITCHFive position switch section.B.O. MARKER: Black out tail lights lit. Stoplights will light when brake treadle valve is pressed.B.O. DRIVE: Black out tail lights and blackout drivinglamp lit. Stop lights will lightwhenbraketreadle valve is pressed.OFF (Unmarked): All lamps off.STOP LIGHT Stop lights will light when brake treadle valve is depressed. Turn signals can beturned on.SER DRIVE: Tail lights and front driving lamps lit. Stop lights will light when brake treadle valve ispressed. Turn signals and flood lights can be turned on.NOTEIgnition key switch must be in extreme counterclockwise position or on position for vehicle lightsswitch to operate.AUXILIARY SWITCHFour position switch section.PANEL BRT.: Gage lights brightly litand cab dome light can be turned on.DIM: Gage lights dimly lit and cabdome light can be turned on.OFF (unmarked): Panel and taillights off.PARK: Service tail lights lit (mainswitch in SER DRIVE position) andgage lights dimly lit and cab domelight can be turned on. Black outtail lights lit (main switch in B.O.DRIVE or B.O. MARKER position).NOTEMain switch section must be inany position other than OFF forauxiliary switch section tooperate.MECHANICAL LOCKSpring loaded switch section.LOCK (unmarked): Main switch can on-ly be placed in B.O. MARKER posi-tion; all other positions lockedout.UNLOCKED: Enables main switch to beplaced in B.O. DRIVE, STOP LIGHT, orSER DRIVE POSITION.To operate, hold lever in UNLOCK po-sition and move main switch lever todesired position.2-5
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