L-852A-D, J & K ITCF, F-Range, ICAO LED Taxiway Centerline Light
96A0460 Rev. C
Maintenance
© ADB Airfield Solutions All Rights Reserved28
2.4.2.8 Installing a New Optical
Unit
To close the optical unit:
Figure 21: Typical 12" L-852D, BI-Directional., 2 Cordset Assembly Shown
11. Turn the cover upside down.
12. Make sure the contact surfaces for the O-ring are clean and apply a light coat of high
quality neutral silicone grease such as Molykote 3452 (67A0095).
13. Install a new greased O-ring in the groove in the top cover.
NOTE: Use a synthetic grease such as Molykote 3452 (67A0095).
14. Remove the pressure release screw if it was not removed during the previous procedures.
15. Install the inner cover on the top cover.
16. Check to make sure the LED light engines are correctly positioned and the wires of the
LED assemblies will not get damaged between both parts (cover and inner cover).
17. Align the index pin in the inner cover with the index pin hole on the top cover.
18. Press the inner cover on the top cover and secure with the countersunk screws. Apply a
drop of Loctite 222 to the last threads. Torque screws to 22 ±4 in-lb (2.5 ±0.5 N•m).
19. Proceed to the next section, Testing for Leaks, to check that the assembly is watertight.
WARNING
Read the instructions in their entirety before starting installation.
Failing to align the F-Range in-pavement light by the index pin could crack
the inner pan, cross-thread the countersunk screws and will cause a
vacuum test failure.
FOR ASSEMBLIES WITH AN
OBSCURED SIDE, THIS AREA IS
DEPOPULATED
REFERENCE LIGHT ENGINE CONNECTIONS
DIAGRAM,
44A7335-11010
BOTTOM PAN ASSEMBLY, SINGLE DRIVER, UNI DIR, NO MON, STYLE 6, 1 CORD
44A7335-32020
BOTTOM PAN ASSEMBLY, DUAL DRIVER, BI- DI
R, NO MON, STYLE 6, 2 CORD
M5 X 10 FLTPHIL SS
M5 X 10 FLTPHIL SS
48A0443-GRN-640
WIDE BEAM LED LAMP ASSEM., GREEN
44A7320-10
WIRE HARNESS, 6 PIN MOLEX DIRECT
60A3332
ITCF L-852D OPTICAL MTG BKT
44A6760-1230
TOP CVR ASSEM., UNI-DIR., 12" L-852C&D
44A6760-2230
TOP CVR ASSEM., BI-DIR., 12" L-852C&D
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