TM 9-2350-247-10DESCRIPTION AND USE OF DRIVER’S CONTROLS AND INSTRUMENTS — Continued 0004 000004 00-6Turns windshield wipers ON and OFF.WINDSHIELD WIPERSWITCHTurns front bilge pump ON and OFF.BILGE PUMP SWITCHTable 6. DRIVER’S INSTRUMENT PANEL - M548A1 (Continued)Indicator light comes ON when forward bilge pump is operating.FORWARD BILGE PUMP ONINDICATOR LIGHTKEYIndicator light not used.AFT BILGE PUMP ONINDICATOR LIGHTCONTROL OR INDICATORPress to test check indicator light function.FUNCTIONTRANS-DIFF INDICATORBULB TEST SWITCHIndicates carrier speed in miles per hour and total carier distance traveled inmiles.SPEEDOMETER/ODOMETER
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