(c)
Use the table that follows to make sure that the crew oxygen system is fully
pressurized:
CREW OXYGEN SYSTEM
AMBIENT TEMPERATURE
FULLY PRESSURIZED
100°F (37°C)
1990 psi (13.720 kPa)
80°F (27°C)
1990 psi (13.100 kPa)
60°F (16°C)
1805 psi (12.445kPa)
40°F (4°C)
1710 psi (11.790 kPa)
20°F (−7°C)
1620 psi (11.170 kPa)
0°F (−18°C)
1530 psi (10.549 kPa)
−20°F (−29°C)
1435 psi (9894 kPa)
−40°F (−40°C)
1340 psi (9239 kPa)
(d)
If the crew oxygen system is not fully pressurized, do the servicing of the crew
oxygen system (TASK 12−14−35−614−801).
(4)
Remove the external ac power (TASK 12−00−07−861−802).
D.
Close Out
(1)
Remove all tools, equipment, and unwanted materials from the work area.
(2)
Close the oxygen service door that follows:
ACCESS DESIGNATION
212BR
Door Oxygen Refill Connection
CL−604 AIRCRAFT MAINTENANCE MANUAL − PART II
EFFECTIVITY: ALL
12−14−35
Page 302
Nov 28/2008
Summary of Contents for CHALLENGER 604
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