737 Flight Crew Operations Manual
Fuel -
Controls and Indicators
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12.10.8 D6-27370-866-EGP
Test Gages and Fueling Panel
8 FUELING INDICATION TEST SWITCH
(spring–loaded to OFF position)
TEST GAGES – checks operation of fuel quantity indicators.
FUEL DOOR SWITCH BYPASS – energizes fueling panel if refueling power
control relay fails.
9 Fueling VALVE POSITION LIGHTS
Extinguished –
• fueling valve switch is OPEN and related tank is full
• fueling valve switch is CLOSED.
Illuminated (blue) – fueling valve switch is OPEN and related tank is not full.
10 Fueling Valve Switches
OPEN – energizes fueling valve in related tank.
CLOSED – de–energizes fueling valve in related tank.
11 FUEL Quantity (QTY) Indicators
Indicates total usable fuel tank quantity in related tank.
12 Fuel Quantity Selectors
Rotate – sets total fuel quantity desired in related tank.
VALVE POSITION LIGHTS
CLOSED
BYPASS
SWITCH
DOOR
FUEL
GAGES
TEST
OFF
OPEN
CLOSED
CLOSED
OPEN
TANK 2
CENTER TANK
TANK 1
FUEL QTY
KG
3260
88888
FUEL QTY
KG
2080
88888
FUEL QTY
KG
2080
88888
GAGES
OPEN
September 28, 2006