.  
Reservoir.overheat

.  
Reservoir.low air.pressure

. Pump low pressure Extinguishes when.the.BLUE ELEC PUMP.switch.is selected.OFF,.except during.an.overheat;.in.which.case,.the light remains on.as long.as the overheat.is present.
PTU.Switch.&.Fault.Light

.  
Switch

.  
AUTO.-.The.reversible.motor pump.is armed.and.both yellow and.green.electro-hydraulic.valves are.open..The PTU.runs.automatically when the.differential.pressure between.the.green.and.yellow systems is more than.500.psi.

.  
OFF.-Both.green.and.yellow PTU.electro-hydraulic.valves are.energized.and.close. Power.transfer.stops.

.  
Fault.Light.-.Illuminates amber.to indicate:

.  
Green.or.yellow reservoir overheat

.  
Green.or.yellow reservoir.low air.pressure

.  
Green.or.yellow reservoir.low

level Extinguishes when.the.PTU.switch.is selected.OFF,.except during.an overheat;.in which.case,.the.light

12.11.06  -.18-
remains on.as long.as the.overheat.is present.

Yellow.ELEC.Pump.&.Fault.Light
.  
Switch

.  
ON.-.The.Pump is energized. If electrical power.is removed, the.pump remains de-energized.at.the.next electrical power.application.

.  
OFF.-The.Pump.is de-energized. It.is automatically energized.when.the.forward.or aft cargo.door.lever.is operated. During.cargo.door operation, all.other.yellow system users.are.inhibited, except.for.the.No..2.engine thrust.reverser.and.the.brake accumulator.

.  
Fault.Light.-.Illuminates amber.to indicate:

.  
Reservoir.low level

.  
Reservoir.overheat

.  
Reservoir.low air.pressure

. Pump low pressure Extinguishes when.the.YELLOW ELEC.PUMP.switch.is.selected OFF, except.during.an.overheat;.in.which case,.the.light remains on.as long.as the.overheat.is present.

Fuel.Panel
X.FEED.Switch.& Open.Light
.  
Switch

.  
OFF.-Closes Crossfeed.valve.

.  
ON.-.Open.Crossfeed.valve. ON.illuminates white.

.  
Open.Light.-.Illuminates green.when Crossfeed.valve is.fully.open.

.

ENG.1.&.2 L/R TK.Pumps.Switch.& Fault Lights
.  Switch

.  
ON.-.Energize.associated Tank.Pump;.fuel.feeds only when.center.Tank.Pumps' delivery.pressure.drops below threshold.

.  
OFF.-Deactivate.associated Tank.Pump.

.  Fault.Lights -Illuminates amber.when the.delivery pressure.drops..Inhibited when.OFF.selected.
. CTRTK.1.&.2.Pump.Switches.& Fault Lights
　
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本文鏈接地址：Flight Deck Documentation AIRBUS A320 空客A320駕駛艙文件(7)