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AV-426-ICAO
Radio Controlled Solar Aviation Light
Replacing the Battery
The AV-426-ICAO has an internal battery compartment, which provides the user with the ability to change
the battery after years of operation.
1. Remove the four socket-head screws on the top lens assembly and separate the AV-426-ICAO lens
assembly from the body/base section.
2. Remove 2 x M4 SHCS & washers from the top battery bracket.
3. Remove the 2 x M5 Nylock nuts and washers from the top battery bracket.
4. Separate the light head at the connectors.
5. Lift the upper battery bracket out of the AV-426-ICAO.
6. Disconnect the old battery
7. Remove the old battery from the chassis.
8. Discard old battery in a safe manner.
9. Reconnect the new battery.
10. Place battery back inside light body, and position the upper battery bracket in the top of the chassis.
11. Secure using 2 x M4 Cap screws & washers and 2 x M5 Nylock nuts and washers.
12. Feed all wiring back inside light body, and make sure the o-ring is properly placed at the top of the light
body.
12. Please realign bidirectional indicators on the base with the light head to ensure correct alignment of the
light output on the runway.
13. Place the top lens assembly back onto the light body and replace 4 socket head screws. Half tighten all
4 socket head screws, and then fully tighten each socket head screw to ensure an even seal.
It is recommended that the bolts for holding the light heads to the Solar Base units have a torque setting
applied of 3Nm for a satisfactory seal.
Applying a higher Torque setting is not recommended and may void warranty. If in doubt, please contact
your local Avlite representative.
14. To test place dark cover (towel or jacket) on top of light to activate sensor, light will come on.
Care must be taken to observe the polarity of each wire before they are connected.
To ensure waterproofing of the unit, make sure that there is an even seal.
AV-426-ICAO
Long Term Battery Storage & Maintenance
If the AV-426-ICAO is to be placed in storage for an extended period please follow the below information.
The Sealed Lead Acid batteries inside the lights must always be stored in a fully charged state.
Always make sure the ON/OFF switch is in the OFF position.
All batteries will discharge over time and the rate of discharge is dependent on temperature.
If the light is being stored in temperatures greater than 40
°
C the battery will discharge faster.
Please check battery regularly and recharge if necessary, charge the battery via the external charging port
on the base of the unit. Only attach the plug with your hand, do not use multi-grips to attach the plug.
Turn the ON/OFF switch to the ON position and place unit in the sun for 2-4 days.
The AV-426-ICAO is fitted with a 12 volt charge port that can be used to charge the battery and test the
battery voltage.
