OPERATOR’S STATION
INDIVIDUAL CIRCUIT DESCRIPTION
TM 5-3805-258-24-1
SYSTEMS OPERATION
CIGAR LIGHTER
The cigar lighter is located in the dash, on the left hand side. It gets power
from the 10 amp fuse marked “CIGAR LIGHTER” on the fuse panel under
the instrument panel. The voltage drop resistor drops the voltage to the correct
value for the 12 volt cigar lighter.
Cigar Lighter Circuit
STARTING AID CIRCUIT
The starting aid circuit has a switch on the instrument panel. There is also a
6N5899 Temperature Switch in the circuit. The temperature switch opens
when the engine temperature goes above 38°C (100°F) and closes when the
temperature goes below 27°C (80°F). The power for the starting aid circuit
comes from the 10 amp fuse marked “HR METER & START AID” on the
fuse panel under the instrument panel.
When the starting aid switch is pushed, power is sent to the solenoid of the
ether start valve assembly. If the temperature switch is closed it makes a ground
for the circuit, the solenoid is activated, and the valve assembly sends a specific
volume of ether to the engine. The temperature switch opens (when the engine is
hot) so that ether can not be put in a hot engine.
Starting Aid Circuit
3-179
