L-852C-D ITCL Taxiway Centerline Inset Lights
Maintenance
©
2009 ADB Airfield Solutions, LLC.
96A0311F
Page 4-5
All rights reserved
Issued 3/05
To test for leaks, perform the following procedure:
1.
See Figure 6-1 in the
Repair
section. Remove pressure relief screw (1).
2.
See Figure 4-1. Screw pressure test fitting (1) into the pressure relief port
(the opening created when the pressure relief screw is removed). Screw
fitting hand-tight.
Figure 4-2 Pressure Test Fitting Assembly
1.
Pressure Test Fitting
2.
Lock Hose Plug Sleeve
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 6-1 in the
Repair
section. If leak is fixed, depressurize and
reinstall the pressure release screw (1).
Testing for Leaks
1
2