(2)
AMM 35-12-00/501, Flight Crew Oxygen System
(3)
AIPC 35-10-00 Fig. 2
(4)
WDM 23-51-01, 23-51-02, 23-51-03
C. Access
(1) Location Zones
101 Control Cabin (Left)
102 Control Cabin (Right)
D. Procedure
S 434-012
(1)
Remove the protective caps or plugs.
S 434-013
(2)
Connect the microphone connector to the storage box.
S 424-014
(3)
Install the storage box.
(a)
Connect the oxygen supply line to the storage box.
(b)
Tighten the connections by hand.
(c)
To complete the connection use a back-up wrench on the fitting to make sure the fitting does not turn.
(d)
Tighten the fitting connection.
(e)
Put the storage box in its position in the recess in the structure.
(f)
Attach the storage box to the structure with the fasteners and engage the four fasteners.
S 414-015
(4) Do the mask/regulator installation procedure to put the mask/regulator in the storage box.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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S 864-016
(5) Pressurize the crew oxygen system.
(a) Put the regulator of the crew oxygen mask to N (normal).
WARNING: YOU MUST OPEN THE VALVE SLOWLY OR HIGH TEMPERATURES CAN
_______ OCCUR. THIS CAN CAUSE A FIRE OR AN EXPLOSION AND INJURY TO PERSONS AND DAMAGE TO THE EQUIPMENT CAN OCCUR.
CAUTION: YOU MUST NOT TIGHTEN THE VALVE MORE THAN THE GIVEN
_______
TORQUE. DAMAGE TO THE VALVE CAN OCCUR.
(b)
Slowly open the shutoff valve on the crew oxygen cylinder fully.
(c)
Do not tighten the valve more than 25 pound-inches (hand tight).
(d)
Close the valve 1/4-turn and use lockwire to keep the valve in this position.
NOTE: Use the 0.020 inch diameter copper lockwire
____
(AMM 20-10-44/401).
S 864-017
(6) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) On the main power distribution panel, P6:
1) C018 or C020, INPH AND WARN, or
SERVICE INPH, or
OBS INPH
2) B021, CAPT AND AUDIO, or
CAPT AUDIO, or
CAPT AND OBS-INPH
3) B020, F/0 AUDIO, or
F/O AND E/R INPH, or
F/O INPH
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4) C019, or C021 OBS AUDIO, or FLT INPH AMPL or INPH AMPL or TRAINING INPH
S 714-018
(7) Do the operational test of the crew oxygen system
(AMM 35-12-00/501).
TASK 35-12-86-004-019
4. Mask/Regulator Removal
______________________
A. General
(1) Read and obey the safety precautions of the oxygen system and the general maintenance instructions before you do the maintenance (AMM 35-00-00/201).
B. References
(1)
AMM 35-00-00/201, Oxygen
(2)
AIPC 35-10-00 Fig. 2
(3)
WDM 23-51-01, 23-51-02, 23-51-03
C. Access
(1) Location Zones
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