T-45A UJPT, E2-C2, ADV, & IUT Eng-09
Hydraulic System
NOTE: Always crosscheck the HYD 2
PRESS caution light subsequent to
RAT extension. There is a possibility
that RAT extension was the result of
momentary high demand on the HYD
2 EDP and not pump failure. In this
case, the HYD 2 PRESS light will
extinguish at EDP pressure of 2,000
psi and HYD 2 can be reset.
3.
Aircraft exterior
Sg 3, fr 6
NO. 2 Flight Control System
a.
Left main wheelwell: HYD 2 FC
Accumulator Gauge
accumulator pressure gauge identical
to HYD 1 FC accumulator pressure
gauge
20
10
30
(1) Indicates pressure in HYD 2 FC
0 40
accumulator (accumulator pres-
Inflation
Valve
sure, as opposed to system output
pressure read from HYD 2 pres-
HYD 2 FC ACCUMULATOR GAUGE
sure gauge in cockpit)
(2) Calibrated from 0 to 4,000 psi
increments and labeled every
1,000 psi
(3) When hydraulic fluid supply is
depleted from accumulator, gauge
displays nitrogen servicing pres-
sure only
b.
Aft fuselage (left side)
Sg 3, fr 7
(1) HYD 2 filter indicators: identical to
C
U
0
IN
C
H
HYD 1 filter indicators
200
FILTER INDICATOR
METALBUTTON
(a) Two indicators, forward one
RESERVOIR GAUGE
RED EDGE
for pressure line and aft one
for return line
LEFT SIDE EXTERNAL LOCATOR
(b) Service required when red
band visible
Page 9-23
(8-03) Original
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