MD-11 Flight Crew Operations Manual
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Emergency Equipment -
Controls and Displays
Emer.30.3
Crew Oxygen Mask
1. Mask Release Lever
Squeezing release levers unlocks container doors and inflates mask harness.
Right lever is movable. Flow indicator on container door will blink to indicate
oxygen flow.
2. EMERGENCY Pressure Control Knob
Pushing knob allows flow of 100% oxygen to mask. Rotating knob to
EMERGENCY position (clockwise) locks flow valve open to assure a
constant flow of oxygen. This is used normally at high cabin altitudes or when
the smoke goggles are used.
3. Dilution Control Lever
This lever allows selection of oxygen flow to the mask. In the N (normal)
position, the lever is unlocked and pulled out. Diluted oxygen then flows to
the mask.
To obtain a flow of pure oxygen the lever must be pushed in and locked.
LB1-3-0025
EROS
N
100%
PUSH
PRESS
TO
TEST
EMERGENCY
1
2
3
Push to
inflate harness
FULL FACE
OXYGEN MASK
October 02, 2006
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