Learjet 60 - Oxygen Storage and Pressure Regulation

Learjet 60

Pilot's Manual
OXYGEN STORAGE AND PRESSURE REGULATION
Several
oxygen
storage cylinder arrangements are used :
" Single cylinder in the nose compartment (40 cubic feet)
" Single cylinder in the nose compartment (77 cubic feet)
"
Single
cylinder
in
the vertical stabilizer
(77
cubic feet)
"
Dual cylinders - one
in
the nose compartment (40 cubic feet) and
one
in
the vertical stabilizer
(77
cubic feet)
"
Dual cylinders - one
in
the nose compartment
(77
cubic feet) and
one
in
the vertical stabilizer
(77
cubic feet)
The
shutoff and pressure regulator assembly
forms
an integral part of
the storage cylinder and provides
for
pressure regulation, pressure
in-
dication, and
servicing . Oxygen
pressure
for
the passenger and crew
distribution systems is regulated to a pressure of 60 to 80 psi
. The
shut-
off
and pressure regulator assembly also incorporates a burst disc pres-
sure
relief
valve to discharge the
oxygen
cylinder contents overboard
in
the event that cylinder pressure reaches 2700 to 3000 psi
.
Should the
cylinder contents be discharged overboard, the green overboard dis-
charge indicator
will
be ruptured or
missing .
Storage cylinders mount-
ed
in
the nose compartment have the overboard discharge indicator
located on the lower left side of the nose section
.
Storage cylinders
mounted
in
the vertical stabilizer have the overboard discharge indica-
tor located on the left side at the base of the vertical stabilizer
.
PM-123
Change 5
6-18A