HYDraulics Flashcards
ACMP 3b runs automatically with the ADG deployed T/F
True
any pump in the auto posistion will run for take off and landing because flaps our of zero and
an apu or engine gen is online
3a will run all the time
when selected on
normal low high and relief pressure
3000psi 1800 psi 3200psi and 3750 psi purple skydrol
percent in quantity
45-85 percent
temp for over temp
96percent
pressing the ENGINE FIRE PUSH and the HYD SOV will
will close the HYD SOV
HYD pumps 1a and 2a are driven by
the engine hp pressure pump
ram air/oil heat exchanger cools the HYD systems 1 and 2
air passes over cooling fins
system three is completely powered by AC
3a and 3 b as well as the AC ESS bus
6 pumps total on the CRJ 900
2hp edp and 4 ACMP
while taxing out on just the right engine and the flaps up
the pumps 3a and 1 a are running in the ON pos flaps out of zero in auto they would run as well
left engine shuts down in flight which pumps are inop
1a
inboard brakes are on
HYD sys #3
outboard brakes are set to
HYD sys#2