Piper Navajo PA-31 Service Manual page 64

PIPER NAVAJO SERVICE MANUAL
2-61. OXYGEN SYSTEM.
2-62. SERVICING OXYGEN SYSTEM. The oxygen for the breathing system is furnished from a
stationary cylinder located in the left side of the nose section, directly behind the baggage compartment. At
1850 psi of pressure the oxygen cylinder has a capacity of 115.0 cubic feet. Service and maintenance
instructions for the oxygen system may be found in Section XIV.
2-63. OXYGEN SYSTEM SAFETY PRECAUTIONS. The utmost care must be exercised in servicing,
handling and inspection of the oxygen system. Comply with the following precautions:
a.
Keep the oxygen regulators. cylinders, gauges, valves, fitting, masks and all other components of
the oxygen system free of oil, grease. gasoline and all other readily combustible substances.
b. Do not allow foreign matter to enter the oxygen lines.
WARNING
The presence of foreign matter in the high pressure lines can cause
an explosion. When coming in contact with oxygen equipment
keep hands, tools and clothing clean - hospital clean.
c. Never attempt to repair or repaint oxygen equipment.
d.
Keep fire and heat away from oxygen equipment. Do not smoke while working with or near
oxygen equipment and take care not to generate sparks with carelessly handled tools when working on the
oxygen system.
e. Never allow electrical equipment to come in contact with the oxygen cylinder.
f. Only a ribbon dope thread sealant (Permacel 412) can be used safely on pipe thread connections
of the Oxygen System.
NOTE
This sealant shall not be used on fittings which have flared or cone
ends.
Application instructions for ribbon dope thread sealant are as follows:
1. Assure that both the female and male threads are clean and free from all previously applied
anti-seize compound or tape.
2. Wrap thread in direction of thread spiral of male thread, beginning with the second thread.
In no case should the tape be permitted to extend beyond the second thread.
Reissued: 10/12/79
HANDLING AND SERVICING
1C16