MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Date
MAR 2017
Rev Date
Page
8
k. Purge the line of AK- 225 by passing clean dry air
through the line.
l. With the air still flowing, sniff the air exiting the
drain line. The absence of odors will verify the line is
free of AK- 225.
m. Reconnect lines and restore System to service.
Functional Test
The following test procedure will evaluate the Fixed Ox-
ygen System installation in the aircraft:
1. Check wiring and connections before applying air-
craft battery power.
2. Fill Oxygen System with aviators oxygen.
3. Switch the Oxygen System ON at the oxygen con-
trol panel and verify that the Oxygen System quantity
display indicates the same oxygen pressure shown at
the aft fill port gauge.
4. Connect Flowmeter breathing device to overhead
distribution panel.
5. Ensure oxygen flow through a breathing device.
6. Switch the Oxygen System OFF at the oxygen
control panel.
7. Turn aircraft battery power off.
Oxygen System Installation
MOUNTING
HARDWARE
WASHER
SCREW
LOW PRESSURE
FITTING
CLAMP
GROUND STRAP
MOUNTING
HARDWARE
LOOKING AFT
FROM STA 120
PRECISE FLIGHT OXYGEN SYSTEM - BOTTLE & REGULATOR
FIGURE 35-5
35-00-03
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