The circuit breaker, CB1, provides power to the control panel. The power switches provide power to the
air compressor and their respective switches, knobs, lights, and M54 Smoke Generator. The fuel,
engine, and fog oil switches are three-position switches: START, RUN, and OFF. The air indicator
lights come on when the air pressure in the air tank reaches 63 psi. The purge button releases air into the
combustion tube to purge exhaust gases out the discharge baffles. In the event of an engine head fire,
the sensing element will activate the fire indicator light on the control panel.
(h) Fuel Cans. Two externally mounted fuel cans provide fuel to the M54 Smoke
Generators. Each fuel can assembly consists of a 5-gallon fuel can and supporting hoses. Each M54
Smoke Generator uses approximately 3 gallons of fuel each hour of operation.
(i) Temperature indicator. A temperature indicator (Figure 1-14) for each M54 Smoke
Generator monitors the temperature inside the combustion chamber. The optimum operating
temperature of the M54 Smoke Generator is in the green range (650 F to 950 F). A thermal sensor
inside the combustion chamber automatically shuts off the engine and the fuel and fog oil pumps if the
temperature exceeds 1,100 F.