T-45C TS, ADV & IUT ENG-26
Engine Start Procedures
b.
Description: three-position switch marked
ENGINE - START/ON/OFF
(1) START (spring-loaded to ON):
Sg 1, fr 6
Fig 3: Engine Start
(a) Accelerates GTS from idle to full power
System
(b) Opens start valve to admit air to air
turbine starter (ATS)
(c) Closes start air dump valve
(d) Completes electrical circuit to engine
igniters
(2) ON: energizes start control unit
(3) OFF: manually shuts down GTS operation
and deenergizes start control unit
3.
GTS start button
Sg 1, fr 7
GTS Start Button
a.
Location: mounted on front of throttle grip
handle, both cockpits
b.
Description: momentary press switch
NOTE: The GTS button will fire the engine
igniters, with weight on wheels, for duration of
press.
(1) Press (momentary):
(a) Signals start control unit (SCU) to start
GTS
(b) Energizes engine ignition circuitry to
the SCU and engine start switch (with
IGNITION switch in NORMAL)
(2) Activates engine igniters for duration of
press plus 30 seconds with weight off
wheels
Original (9-98)
Page 26-6
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