ADB F-Range L-850C Manual page 31

F-Range Type L-850C Style 3 Inset Lights
Testing for Leaks
(contd.)
 2006 ADB Airfield Solutions, Incorporated
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3. Attach the shop airline to the lock hose plug sleeve (2).
4. Pressurize to 20 psi.
5. Submerge the pressure test fitting in a water tank. Check for air
bubbles. Air bubbles indicate a leak.
6. Locate the leak source, depressurize, replace the seal that is
leaking, reassemble, and retest by following steps 4 and 5.
7. See Figure 4-2. If leak is fixed, depressurize and reinstall the
pressure release screw (E11).
96A0285D
Issued 04/13
Maintenance
Page 4-6