T-45C TS, ADV & IUT ENG-09
Hydraulic System
a.
Location: left intake above wing
b.
Description
(1) Stores power for aileron and stabilator
during periods of high demand
(2) Dampens pressure fluctuations
c.
Physical
(1) Consists of a cylinder with a free-floating
piston that separates fluid from nitrogen
(2) Pressurized with nitrogen (1100 + 50 psi)
Overlay 4
Emergency Package
4.
Emergency package assembly
Assembly
a.
Location: left upper fuselage behind wing
b.
Description
(1) Functional
(a) Allows HYD 2 to charge RAT
accumulator during normal operation
(b) Automatically deploys RAT and directs
emergency hydraulic pressure to flight
control services when HYD 2 pressure
drops below 1500 psi
(c) Isolates sections of the HYD 2 system
from the emergency hydraulic system
when the RAT is deployed
(d) Allows resetting of the HYD 2 system
via solenoid valve with HYD 2 pressure
above 1800 psi
NOTE: The HYD 2 reset button must
be pressed to regain HYD 2 EDP
pressure and stow the RAT.
(9-98) Original
Page 9-20
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