Hydraulic Subsystems
T-45A UJPT, E2-C2, ADV, & IUT Eng-13
B.
Nose wheel steering (NWS)
Sg 2, fr 11
1.
Major components 1.4.9.3.1
Electronic Control Box
Steering Motor
a.
Steering motor: hydraulically powered
by HYD 1 system, mechanically moves
nose wheel
Steering Collar
b.
Gearbox (gear train): mechanically
NOSE WHEEL STEERING (NWS)
SYSTEM MAJOR COMPONENTS
transmits steering motor movement to
nose wheel
c.
Electronic control box
(1) "Brains" of NWS; integrates
signals from landing gear
selection, cockpit controls,
and WOW (weight-on-wheels)
circuitry to control NWS
(2) Controls operation of steering
motor
d.
Steering collar: support bearing
between fixed strut and moveable nose
wheel
2.
Controls and indicators 1.4.9.3
Sg 2, fr 12
GTSFIRE
a.
Paddle switch
E T/RM
G P
CABINALT
GTS
OILPRESS
OXYGEN
ROTATION
HYDFAIL
BRAKEPRESS
SPD BRK
SEATUNARMED
CANOPY
SPDBRKFULL
(1) Location: front side at base of
TAILPIPEHOT
SLATS
HYD1PRESS
ACINVERTER
ECA
HYD2PRESS
ECA
control stick grip
MANUALFUEL
RATEXTEND
AI NC H T
VO I S O
FUELLOW
PARKBRAKE
NOSE WHL STR
LPPUMP
NOSEWHLSTR
ANTI-SKID
FUELPRESS
CONTRAUG
(2) Purpose: momentary switch,
ACCEL
ANTI-SKID
NWS SYSTEM CONTROLS AND
selects NWS emergency off
INDICATORS
(ground) and deactivates control
augmentation system (airborne)
NOTE: If control aug deactivated
on the ground, the RESET position
on the CONTR AUG must be
selected momentarily to regain
CONTR AUG.
Page 13-34
(8-03) Original
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