Piper 6X User Manual

THE NEW PIPER AIRCRAFT, INC.
PA-32-301FT / 301XTC
MAINTENANCE MANUAL
PAGE 6
Jun 1/03 3I20
35-10-00
3 If after using the last storage cylinder the aircraft's oxygen system is still not fully
charged, a full storage cylinder should be put in place of a cylinder with the lowest
pressure and used in the same manner.
4 A good amount of oxygen will remain in the large cylinders used in the cascade
system after filling only one of the cylinders. This remaining oxygen will be at a
pressure something less than the 1850 psi. This is not sufficient pressure to
completely refill another aircraft cylinder, although it will refill several small cylinders.
5
It is not economical, even on a three or four cylinder cascade system, to begin
recharging with oxygen at less than 300 psi pressure in the 300 cubic foot bank of
cylinders. So use 300 cubic foot cylinders down to approximately 300 psi; then return
for refilling. In two cylinder systems use to approximately 100 psi; then return for
filling.
(d) When the pressure gauge on the recharge unit or in the aircraft reaches 1800 to 1850 psi,
close the pressure regulator valve on the recharge unit. Disconnect the filler hose from the
filler valve; replace the protective cap on the filler valve and close the access cover. Check
the cylinder pressure according to Chart 2 after the cylinder temperature stabilizes.
(5) After detaching the service cart, cap hose and fittings to prevent contamination.
(6) Perform a leak check of the high pressure lines and clean off solution afterwards. If solution is
not properly cleaned off, corrosion may result.
B. Inspections
(1) Check the outlets for leakage both in the use and non-use condition and for leakage around an
inserted connector. See Leak Test, below.
(2) Check the high pressure gauge for accuracy by comparing its indicated pressure with that of a
gauge of known accuracy connected to the fill port.
(3) Visually inspect tank weekly. Look for dents, bulges, corrosion, major strap chaffing marks, and
current hydrostatic test date. Should any of these problems exist, the tank should be removed
and hydrostatically tested.
NOTE: Oxygen cylinders are identified by the ICC or DOT identification stamped on the
cylinder. On these airplanes, the lightweight cylinder of composite construction (DOT
E8162), must be hydrostatically tested every 3 years, and the service life may not
exceed 15 years. The month and year of the last test should be stamped on the
cylinder beneath the ICC, DOT identification.
CHART 2
FILLING PRESSURES* FOR CERTAIN AMBIENT TEMPERATURES
Ambient Temperature °F/°C Filling Pressure Ambient Temperature °F/°C Filling Pressure
0 / -17.78 1650 (PSI) 70 / 21 1975 (PSI)
10 / -12.22 1700 80 / 27 2000
20 / - 6.67 1725 90 / 32 2050
30 / - 1.11 1775 100 / 38 2100
40 / 4.44 1825 110 / 43 2150
50 / 10 1875 120 / 49 2200
60 / 15.56 1925 130 / 54 2250
* Filling pressures are for 1850 PSI at 70°F (21.11°C). Table assumes 25°F (11.8°C) rise due to heat of
compressor with max. fill rate.

Piper 6X Specifications

General

Brand	Piper
Model	6X
Category	Aircrafts
Language	English