T-45C TS, ADV & IUT ENG-09
Hydraulic System
B.
HYD 1 components
Overlay 1
1.
Reservoir
HYD 1 Reservoir
a.
Location: ram air turbine (RAT) bay, top side
of aircraft, forward of the tail section
(1) Stores hydraulic fluid for HYD 1 operation
(2) Provides fluid under nitrogen preload
pressure to HYD 1 to prevent EDP
(3) Provides fluid pressure to component seals
during nonoperating periods to minimize
leaks
b.
Physical
(1) Consists of a cylinder with a free-floating
piston that separates fluid from nitrogen
(2) Pressurized by nitrogen during ground
maintenance
(3) Fluid quantity depends both on quantity
remaining in accumulators and the
hydraulic fluid temperature
(4) Has external quantity gauge
2.
Engine-driven pump (EDP)
Overlay 2
HYD 1 EDP
a.
Location: aft right side of engine accessory
b.
Description
(1) Produces hydraulic pressure for HYD 1
system
(2) Output volume varies in response to
demand
(9-98) Original
Page 9-7
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