L-852A-D, J & K ITCF, F-Range, ICAO LED Taxiway Centerline Light
96A0460 Rev. C
Maintenance
© ADB Airfield Solutions All Rights Reserved
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2.4.3 Testing for Leaks
Always test for leaks after opening the fixture for any reason. To perform this test:
1. Remove pressure release screw, shown at right.
2. Screw the pressure test fitting hand-tight into the pressure relief port (see figure below).
The relief port is the opening created when the pressure release screw is removed.
3. Attach an air line to the lock hose plug sleeve, shown below.
4. Pressurize to 20 psi (137.89 kPa).
5. Submerge the fixture in a bucket or tank filled with water. Check for air bubbles, which
would indicate a leak.
6. Locate the leak source, depressurize, replace the leaky seal or part, reassemble and
repeat the test.
7. If the leak is fixed, depressurize and reinstall the pressure release screw.
Pressure
release
screw
P/N 44A6104
(may be
purchased separately from
ADB Airfield Solutions)
Pressure
test fitting
Lock hose
plug sleeve
