TM 9--2350--292--20--10165 00--2WARNING SYSTEM OVERVIEW AND DIAGRAMS -- CONTINUED0165 00If the SYSTEM WARNING light comes on and the warning horn sounds when the main engine is running, normalprocedure is to shut down the main engine and identify and correct the malfunction. As an aid to operator andmaintenance personnel, the warning horn can be turned off by setting the HORN OVERRIDE switch in the open(up) position after a malfunction has been detected. When the malfunction is identified and corrected, the HORNOVERRIDE switch is returned to the closed position (down) for normal vehicle operation.The lamp test electrical circuits consists of the LAMP TEST switch, PTO clutch oil high TEMP warning light, andPTO clutch ENGAGED indicator light, all of which are located on the accessory control panel; the hydraulic LOWOIL LEVEL indicator light, RETURN FILTER CLOGGED indicator light, CHARGE FILTER CLOGGED indicatorlight, LOW BRAKE PRESSURE warning light, hydraulic MAX OIL TEMP EXCEEDED (225_ F) indicator light.TRANS FILTER CLOGGED INDICATOR LIGHT, LEVEL WINDER MALFUNCTION warning light, WINCH DRUMMALFUNCTION warning light, PAYOUT LIMIT warning light, 20--amp circuit breaker, and 15--amp circuit breaker,all of which are located on the hydraulic control panel; eight diodes and related electrical wiring.When the main engine is running and the LAMP TEST switch on the accessory control panel is held in the TESTposition, all warning lights on the hydraulic control panel and PTO clutch control pane will be illuminated. In addi-tion, the SYSTEM WARNING light will light and the warning horn will sound. This check ensures both the SYS-TEM WARNING light, as well as other warning and indicator lights, and warning horn are all operational. If one ofthe lamps do not light or the warning horn does not sound, normal procedure is to replace respective faulty LEDs orwarning horn whichever is applicable.The relationship of the various warning system components is shown in the following diagram.
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