Piper SARATOGA PA-32-301 Maintenance Manual page 373

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
GENERAL.
The purpose of the following information is to provide supplemental information for the servicing of the
oxygen systems. Major repairs to the oxygen systems should be accomplished by an approved shop.
When refilling any oxygen cylinder make sure to use only aviation breathing oxygen as specified in M I L-
0-272 IOC .The moisture content of aviation oxygen cannot exceed 0.005 milligrams of water vapor per liter of
gas at 70°F and 29.92 inches of mercur\.
DESCRIPTION AND OPERATION.
Fixed or portable oxygen systems are available for this aircraft. with the major components
manufactured by Scott Aviation. It is therefore recommended that Scott Aviation as well as Piper Customer
Services be contacted for any further information not covered herein.
The "fixed" oxygen system uses a 3AA 1800. 63.5 cu. ft. cylinder. The cylinder. mounted in the tailcone
behind the baggage compartment. is connected to an external fill valve mounted to the left side of the fuselage.
aft of the fuselage bulkhead station 222.437. The manifold for the outlets is arranged with the tank feed line
attached to a tee fitting on the right rear passenger's outlet. and from where the other outlets are fed. see Figure
35-1. Push-pull control is provided by a knob on the overhead panel. to the left of the fresh air duct control. A
gauge for displaying tank pressure is mounted in the overhead duct behind the passengers. and is lighted b\ a
post light.
The portable oxygen system is made up of two Scott units each involving a 22 cu. ft. capacity 3AA 1800
cylinder. Each tank is incorporated in a case which utilizes a dual manifold. permitting four masks to be used
(per unit) with dual connectors at each outlet.
-
WARNING -
Do not use grease or any type of greasefitting on any oxygen system.
When working with an oxygen system make sure hands, clothing,
tools and immediate area are free of grease.
- NOTE -
Oxygen cylinders are identified by the ICC or DOT identification
stamped on the cylinder. The standard weight cylinder (ICC or DO T
3AA 1800) must be hydrostatically tested every 5
years. The month
and year of the last test is stamped beneath the ICC/DOT
identification.
35-00-01
Page 35-01
2E8
Added: May
21.
1980
2E8