TM 5-3810-300-24 & P2
Controls, Gages and Indicators.
The items that follow identify the controls, gages, and indicators in the Carrier Cab. Also, the paragraphs specify the
purpose of each control, indicator, and gage. The index numbers on the illustration correspond to the numbers in the
Remote Throttle Control. Controls operation of the Superstructure throttle. When in the ON position allows the
Superstructure air throttle system to control engine rpm.
Voltmeter. Indicates the battery condition, when alternator is not producing electromotive force (volts). Also,
shows condition of the charging system when engine is operating.
Engine Oil Pressure Gage. Normal operating pressures should remain in a range of 40 to 60 psi.
Engine Water Temperature Gage. Normal temperature indication should be in the range of 170 to 185"F. If
temperature indication is abnormal, operation of automatic radiator shutters and/or the thermostat should be
Engine Tachometer. Indicates revolutions per minute at which engine is operating.
Main Air System Pressure Gage. (Not Shown). Indicates pressure in main air tank. Operating range is normally
between 95 and 125 psi. If pressure drops below 75 psi, a low pressure warning buzzer will operate and the red
warning light will illuminate.
Fuel Gage. (Not Shown). Indicates fuel tank quantity in fractions of the total tank capacity.
Low Air Pressure Warning Light. This light activates simultaneously with the warning buzzer. If traveling,
immediate stop should be made to avoid automatic application of spring brakes.
Speedometer and Odometer. Indicates road speed and total mileage vehicle has traveled.
Light Beam Indicator Light. Indicates whether lights are on LOW or HIGH beam.
Differential Lock Indicator Light. Indicates when the inter-axle differential control is in the LOCK position.
Inter-Axle Differential Control Lever. When positioned to LOCK engages (LOCK OUT) the inter-axle differential.
Cab Light Switch. Controls overhead light.