TM 55-1520-240-23-7
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LIGHTING SYSTEMS
(Continued)
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FORWARD TRANSMISSION OIL LEVEL CHECK
LIGHT
Description
The transmission oil check light system includes a
switch, and a light. It lights the oil level sight gage on the
forward transmission. The switch, marked OIL LEVEL
CHECK LT SW, is on a structural member above the
pilot’s seat. Power for the transmission oil level check
light system comes from the 28 volt switched battery
bus.
Operation
When OIL LEVEL CHECK LIGHTING circuit breaker is
closed, 28 vdc is applied to terminal 2 of OIL LEVEL
CHECK LT SW. When the switch is at ON, 28 vdc lights
the forward transmission check light.
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