BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual page 500

Oxygen Cylinder Assembly
The oxygen filler valve (Figure 17-2) is lo-
cated in the ground service panel. It is con-
nected to the oxygen cylinder assembly
(Figure 17-3), which consists of a cylinder,
a manually operated ON–OFF lever, and pres-
sure-reducing and relief valves. The cylinder
is bracketmounted in the right forward fuse-
lage and stores 49.8 cubic feet (1,409 liters)
of oxygen at 1,850 psi. The ON–OFF lever is
normally at ON and secured with lockwire.
The pressure-reducing valve reduces the high
cylinder pressure to a lower, constant oper-
ating pressure of 72.5 psi. Two relief valves
are connected to the pressure-reducing valve;
one for the high-pressure system and one for
Figure 17-2. Oxygen Ground Service
Panel
Figure 17-3. Oxygen Cylinder Assembly
CL-600-2B16 PILOT TRAINING MANUAL
the low-pressure system. The high-pressure
system relief valve ruptures if an overpres-
sure occurs, venting the oxygen overboard.
The low-pressure system relief valve is spring
operated to maintain a normal low-pressure
system operating value of 72.5 psi.
Pressure Indicators
The ground service pressure indicator (Figure
17-2) is located in the ground service panel on
the right side of the forward fuselage. It indi-
cates oxygen cylinder pressure and is checked
before flight.
The cockpit oxygen pressure indicator (Figure
17-4) is located on the copilot's side panel
and indicates oxygen cylinder pressure.
Oxygen mask stowage boxes (Figure 17-5)
are provided on the pilot's and copilot's side
consoles. They include a door-operated shut-
o ff va l ve , a f l ow ( ey e ) i n d i c a t o r, a n d a
RESET–TEST switch. When the mask is lifted
from the stowage box, the open doors acti-
vate a shutoff valve, allowing the oxygen to
flow to the mask. The flow indicator on the box
indicates white when oxygen is flowing. When
the RESET–TEST position is selected, the
shutoff valve is momentarily opened, and the
flow indicator will show white, indicating
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
10
6
USE NO OIL
2
0
OXYGEN PRESS
PSI X 100
Figure 17-4. Crew Oxygen Pressure
Indicator
L t é e
L t d.
14
18
20
CL 601-3A/R 17-3