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12-15-11
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
OXYGEN - SERVICING
__________________
1. General_______
A. This procedure gives the instructions for servicing the crew oxygen system by the procedures that follow:
(1)
Crew oxygen minimum dispatch pressure check
(2)
Crew oxygen servicing (cylinder replacement method)
B. The passenger oxygen system is serviced by the replacement of the chemical oxygen generator in each service unit (AMM 35-22-11/401).
C. Portable oxygen cylinders are serviced by the replacement of the cylinders with fully serviced cylinders. For the location of the portable oxygen cylinders refer to AMM 35-31-00/001.
TASK 12-15-21-203-095
2. Crew Oxygen Minimum Dispatch Pressure Check (Fig. 301)___________________________________________
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. Reference
(1)
AMM 12-15-21/301, Oxygen Servicing
(2)
AMM 35-00-00/201, Oxygen - Maintenance Practices
C. Access
(1) Location Zone
102 Control Cabin, Right
208 Forward Cargo Compartment, Right
D. Do the Crew Oxygen Minimum Dispatch Pressure Check
S 213-096
(1)
Make sure the pressure shown on the crew oxygen cylinder pressure gage or the crew oxygen pressure indicator (Aft Overhead Panel) is above the minimum pressure necessary for dispatch.
S 613-097
(2)
If the pressure is below the minimum pressure necessary for dispatch, do the crew oxygen servicing procedure (AMM 12-15-21/301).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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A 737-300/400/500MAINTENANCE MANUAL
BOTTLE TEMPERATURE `F`C USING OXYGEN NUMBER OF CREW 32
14-10 1090 1585
23-5 1110 1615
320 1130 1645
415 1150 1675
5010 1170 1705
5915 1190 1735
6820 1210 1765
7725 1230 1795
8630 1250 1825
9535 1270 1855
10440 1290 1885
11345 1315 1915
12250 1335 1950
MINIMUM DISPATCH PRESSURE (PSI)
FOR 39 CUBIC FEET BOTTLE
Minimum Dispatch Pressure for Crew Oxygen Cylinder
Figure 301
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
M10196
A
737-300/400/500MAINTENANCE MANUAL
TASK 12-15-21-603-007
3. Crew Oxygen System Servicing (Cylinder Replacement Method)
__________________________________________________________
A. General
(1)
Read and obey the safety precautions and the general maintenance instructions of the oxygen system before you do the maintenance (AMM 35-00-00/201).
(2)
Oxygen Requirements
(a) Oxygen that you use for the aircraft oxygen system must have the properties that follow: 1) The oxygen must contain no less than 99.5% oxygen by
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