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MAINTENANCE MANUAL

BLEED RELIEF VALVE (EXAMPLE)
OXYGEN BOX (EXAMPLE)
TO THE CREW OXYGEN SYSTEM AND THE OVERBOARD DISCHARGE PORT AND INDICATOR OXYGEN CYLINDER DISTRIBUTION LINE FOR THE LOW PRESSURE
MASK
UNITIZED
VALVE ASSEMBLY

AUTOMATIC VENT VALVE
ELECTROPNEUMATIC FLOW CONTROL UNIT
(EXAMPLE)  (EXAMPLE) GAGE PRESSURE 
(EXAMPLE) PRESSURE TRANSDUCER  SHUTOFF (EXAMPLE) VALVE 
PRESSURE (EXAMPLE) REDUCER 
(VIA EIU'S) EICAS 
UNIT AVERAGING VOLTAGE 
(EXAMPLE) SAFETY RELIEF DISK FOR THE FRANGIBLE  TO THE CREW SYSTEM OXYGEN  LEGEND:_______  LOW PRESSURE 
MEDIUM PRESSURE 
HIGH PRESSURE 
DISCHARGE LINE 
Figure 6 Supernumerary Oxygen Flow Diagram 

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SUPERNUMERARY OXYGEN SYSTEM

* SEE THE WDM EQUIPMENT LIST

THE NUMBER OF OXYGEN BOXES, MASKS, AND UNITIZED VALVE ASSEMBLIES CAN CHANGE.
AS SHOWN IN THE FORWARD RIGHT CARGO COMPARTMENT, RIGHT SIDEWALL
ATTACHED TO EACH OXYGEN CYLINDER
THE NUMBER OF BLEED RELIEF VALVES CAN CHANGE.

Supernumerary Oxygen System - Component Index
Figure 101

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INSTALLATION
Supernumerary Oxygen System Components
Figure 102 (sheet 1)

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OXYGEN
BOX

(EXAMPLE)
A-A
Supernumerary Oxygen System Components
Figure 102 (Sheet 2)

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SUPERNUMERARY OXYGEN CYLINDER INSTALLATION

Supernumerary Oxygen System Components
Figure 102 (Sheet 3)

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FAULT ISOLATION/MAINT MANUAL

AUTOMATIC VENT VALVE 
　
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