Type L-852A-D Dualite Bidirectional Taxiway Light Fixtures

Maintenance

4.Maintenance

Maintenance Schedule

This section provides maintenance information and procedures for the L-852A-D light fixture.

Service life depends upon the entire assembly being waterproof. All surfaces must be clean, dry and free of all foreign matter and all bolts must be properly tightened if the light fixture is to operate for extended periods without requiring maintenance.

To keep the L-852A-D light fixtures operating efficiently, follow a preventive maintenance schedule. Refer to Table 6. Refer to FAA AC 150/5340-26 for more detailed information.

Table 6. L-852A-D Light Fixture Maintenance

Interval

Maintenance Task

Action

Daily

Check for burned-out lamp.

Replace lamp and film disc cutout, if used. Refer to

 

 

 

Replacing Lamp in this section.

 

Check for dim lamp.

 

Clean optical surface if dirty. Check for

 

 

 

misalignment or presence of moisture in fixture.

Weekly

Check for dirty channel and prism.

Clean channel and prism. Refer to Cleaning Light

 

 

 

Channel and Prism in this section.

Monthly (or more

Check for moisture in the light fixture.

Open up the light fixture. Clean, dry, and inspect

frequently during

 

 

the light assembly. Replace O-ring.

rainy seasons)

 

 

 

Every 60 days, or

Check for improper torque on holddown

Torque six bolts holding fixture to base to base

whenever the light

bolts.

 

receptacle to 185 ± 5 in-lb (20.902 ±0.565 Nt-M).

assembly is serviced

 

 

Use Loctite to keep bolts tight. Refer to Retorquing

 

 

 

Mounting Bolts in this section.

Semi-annually

Check for six inches (152 mm) of water in

Pump water from base. Remove and inspect light

 

L-868B base.

 

for water damage. Refer to Removing L-868B Base

 

 

 

Water in this section.

After 1600 hours

Not applicable

 

Replace lamp Refer to Replacing Lamp in this

operation

 

 

section.

After snow removal

Check for damaged light fixtures.

Replace damaged fixtures. Use a power broom for

 

 

 

snow removal, if practical. Follow recommended

 

 

 

snow removal techniques described in AC

 

 

 

150/5200-23.

Maintenance Procedures

This subsection describes the following maintenance procedures:

∙replacing lamp

∙cleaning light channel and prism

∙retorquing mounting bolts

∙removing L-868B base water

© 2001 Siemens Airfield Solutions, Incorporated

96A0149E

Page 19

All rights reserved

Issued 5/01

 

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Siemens L-852A-D manual Maintenance Maintenance Schedule, Maintenance Procedures, Interval Maintenance Task Action
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L-852A-D specifications

The Siemens L-852A-D is an advanced lighting system designed primarily for airport applications, providing a robust solution for runway edge lighting. This innovative product is engineered to enhance safety and operational efficiency in various weather conditions, catering to the unique demands of modern air traffic management.

One of the most notable features of the L-852A-D is its LED technology. The use of light-emitting diodes significantly increases energy efficiency compared to traditional incandescent lights. LEDs are known for their long lifespan, often exceeding 50,000 hours, which translates to reduced maintenance costs and less frequent replacements. This is particularly beneficial in airport environments where minimizing downtime is crucial.

The L-852A-D is designed to provide exceptional visibility with its high-intensity output, crucial for both day and night operations. The system's optical design ensures uniform light distribution, which enhances pilot awareness and improves navigation during takeoff and landing. Additionally, the device is engineered to comply with international aviation standards, ensuring reliability and safety in all conditions.

Another key characteristic of the L-852A-D is its durability. The system is constructed to withstand harsh environmental conditions, including extreme temperatures, high winds, and moisture. Its housing is built from corrosion-resistant materials, ensuring longevity even in challenging climates. The product is also designed to be highly resilient to impacts, which is essential in high-traffic airport settings.

The L-852A-D incorporates sophisticated control technologies that enable adaptive lighting capabilities. This feature allows for automatic adjustments based on external conditions, such as visibility levels, significantly enhancing operational efficiency. Furthermore, it can be integrated with central control systems, allowing for seamless management and monitoring from a single point.

Safety is paramount in airport operations, and the L-852A-D includes features that enhance user and operational safety. Its low profile reduces the risk of physical hazards, while the integrated fail-safe mechanisms ensure continued operation in the event of a power failure.

In summary, the Siemens L-852A-D runway edge lighting system combines advanced LED technology, durability, and intelligent control features to provide an efficient and reliable solution for airport environments. Its main attributes include energy efficiency, long lifespan, compliance with regulatory standards, and robust construction, making it an ideal choice for enhancing safety and operational efficiency in aviation lighting.
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