Learjet 24 - Oxygen System Details

OXYGEN SYSTEM
GENERAL
The oxygen system components include an
oxygen storage cylinder, a cylinder shutoff
valve and regulator assembly, an overboard
discharge indicator, an oxygen pressure gage,
and the distribution systems for the crew and
passengers. Figures 17-1 through 17-3 depict
the crew and passenger oxygen distribution
systems installed in the Lear 20 series
airplanes.
17-2
FOR TRAINING PURPOSES ONLY
LEARJET 20 SERIES PILOT TRAINING MANUAL
FlightSafety
international
MANUAL SHUTOFF VALVE
REGULATOR
RELIEF VALVE
(70 PSIG)
FILLER VALVE
CREW OXYGEN MASK
SOLENOID VALVE
NORMALLY CLOSED
ANEROID SWITCH
MANUAL DOOR
RELEASE*
MASK STORAGE DOOR
RELEASE VALVE
PASSENGER OXYGEN MASK
OXYGEN CYLINDER
CYLINDER RELIEF VALVE
(3,350 PSIG)
DISCHARGE INDICATOR
RELIEF VALVE
(275 PSIG)
PRESSURE GAGE
(ON INSTRUMENT PANEL)
CREW OXYGEN MASK
PASS OXY VALVE
AUTO—OFF
NORMALLY OPEN (AUTO)
PASS MASK VALVE
MAN—AUTO
NORMALLY CLOSED (AUTO)
LANYARD
MASK STORAGE DOOR
LANYARD-OPERATED VALVE
* NOT INSTALLED ON SNs 23-003
THROUGH 24-138
23-003 THROUGH 24-200
25-003 THROUGH 25-038
EFFECTIVITY:
SUPPLY PRESSURE
REGULATED PRESSURE
LEGEND
Figure 17-1. Oxygen Schematic No. 1