T-45A UJPT, E2-C2, ADV & IUT Eng-13
Hydraulic Subsystems
(7) NLG forward doors are driven to
near closed position (3-5 degrees
from full closed) by
electromechanical actuator
powered by 28 VDC essential bus
when emergency gear handle is
pulled and NLG clears the forward
doors
CAUTION: Failure of weight-off-
wheels circuits will prevent
NWS activation or operation
after landing, with no warning to
the pilot. If the EMER GEAR
handle is not fully stowed, nose
wheel steering authority may be
diminished. If the landing gear
is emergency extended,
hydraulic pressure will not be
supplied to the nose wheel
steering and the system will be
inoperative. Launch bar
extension also will be
inoperative.
(8) Gear cannot be raised with the
EMER GEAR handle
NOTE: Once down and locked,
the gear cannot be retracted
unless HYD 1 power returns.
NOTE: The LDG GEAR DOOR
caution light will remain illuminated
when the gear is lowered using the
EMER GEAR handle.
(8-03) Original
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