ADB DTC, Instruction Manual

Page: 20 / 41

AM.04.510e - Edition 1.5 20
Maintenance
5 Maintenance
Maintenance personnel must refer to the maintenance procedure described in the ICAO Airport
Services Manual, Part 9, Airport maintenance practices and in FAA Advisory Circular N° AC150/
5340-26, chapter 45, section 4.
5.1 Preventive maintenance schedule
WARNING
Do not carry out any action on the fixture unless you have read and
understood all the information in the chapter 2.
WARNING
Make sure that the power to the series circuit is OFF when you carry out
maintenance.
Frequency Check Action
Daily For low light output according to
ICAO annex 14 - If the prism is dirty, clean the
prism.
- If the prism is not dirty,
-
replace the fixture. See
chapter 4.
- and replace the faulty
component in the
workshop. See § 6.1.
Monthly Visually for condensation on
inner side of the prisms
(presence of moisture or water) - Replace the fixture. See
chapter 4.
- and replace the faulty
component in the workshop.
See chapter 6.
For failed fixture - Replace the fixture. See
chapter 4.
- and replace the faulty
component in the workshop.
See chapter 6.
Half-yearly For presence of water in the
mounting support - Remove all water from the
mounting support.
- Dry all parts of the fixture.
- Replace all corroded parts.
- Remove the cause of the water
ingress.
After snow removal For damaged fixture. - Replace the total fixture. See
chapter 4.
- Use a power broom to remove
the snow near the fixture, if
practical.
- Follow the recommended snow
removal techniques described
in FAA AC 150/5200-30 to
avoid or at least to reduce
damage to the fixture.