Outlet Assembly Ground Level Flow Value for Portable Oxygen Cylinder
Figure 502
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737-300/400/500MAINTENANCE MANUAL
PORTABLE OXYGEN EQUIPMENT - INSPECTION/CHECK
____________________________________________
1. General
________
A. This procedure contains one task:
(1) The portable oxygen cylinder inspection/check.
TASK 35-31-00-206-001
2. Portable Oxygen Cylinder Check
______________________________
A. Consumable Materials
(1) G00091 Oxygen System Leak Detection Compound, (Ref 20-30-51)
B. Access
(1) Location Zone
100 Upper Half of the Fuselage
C. Do a Check of the Portable Oxygen Cylinder
S 216-016
(1) Make sure the oxygen cylinder is in compliance with local regulatory requirements currently in effect for hydrostatic test.
NOTE: The last hydrostatic test date will be stamped on the neck of
____
the oxygen cylinder.
S 216-002
(2)
Do a check of the pressure on the pressure gage.
S 216-003
(3)
Make sure the oxygen cylinder gage pressure is not more than 1850 psi at 70°F (21°C).
NOTE: See Fig. 601 for equivalent portable oxygen cylinder
____ pressures for temperatures other than 70°F (21°C).
S 966-004
(4)
Replace the portable oxygen cylinder, if the gage pressure is below the minimum guideline set for the airline or regulatory authority.
S 866-005
(5)
Turn the knob on the ON-OFF valve a minimum of one-half turn and open the ON-OFF valve.
S 796-006
(6)
Apply the leak detection compound to all the fittings and connections.
NOTE: Bubbles will show there are leaks that you must repair.
____
S 436-007
(7) Tighten the fitting connections to repair the leakage.
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S 866-008
(8) If the leakage continues, send the portable oxygen cylinder to an approved overhaul shop.
NOTE: Leakage is not permitted.
____
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TEMPERATURE - DEGREES FAHRENHEIT
-40 -22 -4 +14 +32+68 +86 +104 +122 +140
+50
2000
1900 1800 1700 1600 1500 1400 1300 1200 1100 1000 900 800 700
PORTABLE OXYGEN CYLINDER PRESSURE - PSI
MAXIMUM ALLOWABLE PRESSURE FOR FULLY SERVICED PORTABLE OXYGEN CYLINDER
Potable Oxygen Cylinder - Pressure/Temperature Correction Chart Figure 601
F42920
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