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TM 10-4320-348-14
Key
External Control or Indicator (See Figure 2-2)(continued)
Function
9
Heater control - air
Two-position [ON (up)/OFF (down)] switch for controlling operation of
internal air temperature heater element.
10
Indicator lamp
Illuminated when air heater control switch (9) is in the ON (up) position.
11
Circuit breaker
In the event of an overloaded circuit, push the button to reset the air heater
circuit.
12
Fuel selection switch
Controls the fuel supply source.
13
Ground connection
Provides ground connection stud and nut.
2-4
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