Cleaning Of Face Masks; Components; Oxygen Cylinder; Removal Of Oxygen Cylinder And Regulator - Piper PA-31-350 Maintenance Manual

PIPER AIRCRAFT
T-1020
MAINTENANCE MANUAL
6. Check for presence of contamination, condensed moisture or odor. If any unsatisfactory
condition still exists, continue purging for another 15 minutes.
-NOTE -
If system is not connected to oxygen cylinder, leave 50 psi of
nitrogen in system to prevent moisture from forming.
7. Shut off nitrogen supply and disconnect hose from filler valve. Install filler valve cover.
8. Close regulator (counterclockwise) to allow oxygen to purge out any nitrogen remaining in lines
then close regulator.
9. Open oxygen cylinder shutoff valve.
10. Remove oxygen mask connectors from outlet ports.
CLEANING OF FACE MASKS.
The disposable masks are designed for one-time use and require no maintenance. The pilot's and copilot's
masks can be cleaned as follows:
1. Remove the microphone from the mask.
2. Remove the sponge rubber discs from the mask turrents. Do not use soap to clean sponge rubber
discs, as this would deteriorate the rubber and give off unpleasant odors. Clean in clear water and squeeze
dry.
3. Wash the rest of the mask with a very mild solution of soap and water.
4. Rinse the mask thoroughly to remove all traces of soap.
5. Make sure the sides of the breathing bag do not stick together while drying, as this may decrease
the life of the rubber in the bag. The mask can be sterilized with a solution of 70 percent ethyl alcohol.
COMPONENTS.
OXYGEN CYLINDER.
REMOVAL OF OXYGEN CYLINDER AND REGULATOR.
The cylinder is located on the upper right side of the fusealage aft of the rear baggage compartment.
Remove the screws securing the rear panel in the aft baggage compartment and remove panel to gain access
to the regulator and oxygen cylinder.
- CA UTION -
Verify the cylinder valve is closed prior to disconnecting any lines
from the regulator.
1. Disconnect the control cable from the regulator.
2. Disconnect the lines from the regulator.
35-14-02
Page 35-07
3I2
Issued:
September 2,
1981
3I12