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TM 5-4210-230-14&P-1
GAUGES AND INSTRUMENTS
TACHOMETER
The purpose of the tachometer is to indicate the engine RPM.
TEMPERATURE GAUGE (Coolant)
The temperature gauge indicates the temperature of the coolant in the cooling system. The gauge operates only when the
ignition switch is turned to the "on" position. If the indicator suddenly rises to the "hot" position, the engine should be stopped and the
cause of overheating determined.
TRANSMISSION OIL TEMPERATURE GAUGE
This gauge indicates temperature of the transmission oil.
VACUUM GAUGE & LOW VACUUM INDICATOR LIGHT (Vehicles with Vacuum Power Cylinder and Reserve Tank)
The vacuum gauge registers the amount of vacuum in the brake system. If vacuum falls below 20.3 cm (8 in.) a warning
light on the instrument panel will glow. The warning light will go out when vacuum in the system is sufficient to operate vehicle.
WATER TEMPERATURE WARNING LIGHT
This light will glow when the engine coolant is in excess of recommended operating temperature.
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