Purpose

Replace the light engine with one from a known-good one.

Safety Precaution

Turn off power at the Constant Current Regulator (CCR) and apply lockout/tagout before opening the fixture.

Tools Required

Flathead screwdriver.
Clean cloth or brush.

Procedure

Open the fixture by unclipping the two lens ring clasps.
Remove the lens ring and lens together as one assembly.
Unscrew the two screws securing the light engine.
Disconnect the LED cable from the driver board.
Carefully remove the existing light engine from the base.

Inspect and Prepare the Base

Clean any debris or residue from the inner edge to ensure a proper seal.
Plug in the new light engine to the LED connector.
Position the light engine so the mounting hole is opposite the driver board.
Secure it using the two mounting screws.

Reinstall the Lens Assembly

Match the lens color with the LED side (if applicable).
Align the two recesses on the lens ring with the tabs on the base.
Lower the assembly into place and latch both clasps securely.

Safety Reminder

Always maintain safe working conditions by using appropriate personal protective equipment (PPE) where necessary.
Only qualified service personnel should perform light engine replacement on airfield LED fixtures.
Follow lock out / tag out procedures and verify absence of hazardous voltage before handling internal components.

Airport Lighting Company | L861(L) Medium Intensity Elevated Edge Light