T-45A UJPT, E2-C2, ADV, & IUT Eng-17
ECS/Pressurization System & OBOGS
VII. OBOGS controls, switches, and indicators 1.4.16.3
Sg 7, fr 1
Lesson Organization
A.
Pilot services panel
Sg 7, fr 2 (4 overlays)
1.
OBOGS/ANTI-G switch (fwd cockpit only)
a.
ON: turns on OBOGS and anti-g
system
b.
OFF: closes bleed air shutoff valve to
turn off OBOGS/anti-g system and
illuminates the OXYGEN warning light
PILOT SERVICES PANEL
2.
OBOGS FLOW selector
a.
OFF: shuts off oxygen flow to pilot's
oxygen mask
Overlay 1
OBOGS FLOW Selector
b.
ON: permits oxygen flow to pilot's
oxygen mask
3.
OBOGS hose connector: provides
connection for ejection seat survival kit
4.
ANTI-G suit connection: quick disconnect
Overlay 2
receptacle for anti-g suit
OBOGS Hose Connector
5.
ANTI-G PRESS TO TEST button: when
Overlay 3
ANTI-G Suit Connector
pressed and held, directs flow of air into
anti-g suit for purpose of checking anti-g
Overlay 4
system operation or for providing body
ANTI-G PRESS TO TEST Button
massage
NOTE: The anti-g system is automatically
activated when the OBOGS/ANTI-G switch
Sg 7, fr 3
is set to ON.
B.
OXYGEN warning light (WCP): indicates the
OBOGS/ANTI-G switch is OFF or OBOGS
failure when illuminated--either low oxygen
concentration in the system supply or bleed-air
temperature exceeds 250 degrees F
OXYGEN WARNING LIGHT
Page 17-18
(8-03) Original
Previous Page
