(2)  
The installation of the stored gas bottle.

 (3)  
An inspection/check of the stored gas bottle.

 (4)  
The pressurization of the stored gas cylinder.

 C.  The floor-mounted escape slide deploys manually and inflates
 automatically.

 D.  The stored gas bottle is in a cradle held by two support sections with hinges. The sections are fastened together over the top of the bottle with two quick-release pins. Rubber seats and pads, attached to the support, protect the bottle from vibrations.
 TASK 25-68-04-002-001
 2.  Remove the Stored Gas Bottle (Fig.____________________________201)
 A.  Access
 (1)  
Location Zone
 224 Fwd Upper Deck, RH

 (2)  
Access Panel
 849R Upper Deck Emergency Door, RH

 B.  Procedure
 S 432-002
 (1)  Install the safety pin in the trigger mechanism as follows (detail B):
 (a)  
Put the trigger lever against the stops.

 (b)  
If it is necessary, put the trigger lever against the stops as follows:

 WARNING: DO NOT ALLOW COCKING LEVER TO MOVE AWAY FROM
_______ SPRING-LOADED VALVE PISTON. IF COCKING LEVER MOVES AWAY FROM SPRING-LOADED VALVE PISTON, BOTTLE WILL DISCHARGE AND MAY CAUSE INJURY OR DAMAGE.
 1) Use a rod to hold the cocking lever against the force of the spring-loaded valve piston. 2) While you hold the cocking lever, move the trigger lever until it touches the stops.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

TRIGGER LEVER 
BOTTLE  (RETAINS COCKING 
FIRING  LEVER IN COCKED 
SEE  A  LANYARD  POSITION) 

VIEW HOLE
COCKING LEVER (RETAINS VALVE PISTON)
SAFETY TRIGGERPIN LOCATION STOPS
INBDSLIDE INFLATION
BOTTLE PRESSURE STORED GAS BOTTLE
RELEASE VALVE PISTON (SPRING LOADED)
PIVOT SUPPORT TRIGGER MECHANISM
BOTTLE FIRING SEE C LANYARD RETAINER
B
BOTTLE TRIGGER SPRING
MECHANISM
MANUAL SEE B INFLATION HANDLE REGULATOR BOTTLE
RETAINER PIN (2 LOCATIONS) CABLE
OUTBOARDASSEMBLIES HINGED SECTION
GAS SUPPLY HOSE
STOWAGE (2 LOCATIONS)CONTAINER
INBOARD HINGED SECTION
BOTTLE PRESSURE PLACARD
SEE D CRADLE SUPPORT ASSEMBLY BASE ASSEMBLY (PLATFORM)
FWD
INBD STORED GAS BOTTLE
A
Stored Gas Bottle Installation Figure 201 (Sheet 1)
B40549
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
PREFERRED SAFETY PIN LOCATION BOTTLE TRIGGER
(IDENTIFIED WITH
MECHANISM
ORANGE DECAL)
PIVOT SUPPORT VIEW HOLE
BOTTLE
FIRING

PIVOT LANYARD
SUPPORT PINMANUAL FIRINGINFLATION LANYARDHANDLE RETAINER
OPTIONAL SAFETY PIN LOCATION
PIVOT
PIN
PIVOT SUPPORT MECHANISM
C
MIN GAS PRESSURE
3200
PRESSURE PSIG

2800
2400
2000
0 40 80 120 BOTTLE TEMP `F
BOTTLE PRESSURE PLACARD
(PRESSURE GAGE WITHOUT COLOR-CODED SCALE)

D

Stored Gas Bottle Installation
Figure 201 (Sheet 2)

B40552
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A
747-400 MAINTENANCE MANUAL
 (c) Install the safety pin in the trigger mechanism.
 NOTE: The safety pin goes through the trigger mechanism
　
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