T-45A UJPT, E2-C2, ADV, & IUT Eng-26
Engineering Review
relief valve opens to prevent
system damage due to
overpressurization.
(c) General services not powered
when pressure drops below
1,500 psi
2.
Reservoir
a.
Location: ram air turbine (RAT) bay,
top side of aircraft, forward of tail
b.
Description
(1) Functional
(a) Stores hydraulic fluid for
HYD 1 operation
(b) Provides fluid under nitrogen
preload pressure to HYD 1 to
prevent EDP cavitation
(c) Provides fluid pressure to
component seals during
nonoperating periods to
minimize leaking
(2) Physical
(a) Consists of a cylinder with a
free-floating piston that
separates fluid from nitrogen
(b) Pressurized by nitrogen in
accordance with placard on
servicing panel
(c) Fluid quantity depends both
on quantity remaining in
accumulators and on
temperature of hydraulic fluid
Page 26-21
(8-03) Original
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