TM 9-2350-247-10
DESCRIPTION AND USE OF DRIVERS CONTROLS AND INSTRUMENTS Continued
0004 00
0004 00-12
Light comes on when NBC air filter switch is placed in ON position.
NBC AIR FILTER ON
INDICATOR LIGHT
Applies power to operate NBC air filter system.
NBC AIR FILTER SWITCH
Table 12. DRIVERS INSTRUMENT PANEL - M548A3 (Continued)
Indicates engine operating temperature in degrees Fahrenheit.
ENGINE COOLANT
TEMPERATURE GAUGE
KEY
Light comes on when MASTER SWITCH is ON.
MASTER SWITCH ON
INDICATOR LIGHT
CONTROL OR INDICATOR
Provides power for 24-volt accessories.
FUNCTION
UTILITY OUTLET
Indicates engine speed in revolutions per minute (RPM) and accumulated
hours of engine operation.
TACHOMETER
Indicates battery and generator condition.
BATT GEN GAUGE