Ameri-King AK-451 Series, Installation And Operation Manual

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2.5.2 ELT REMOTE UNIT BATTERY INSTALLATION AND
REPLACEMENT INSTRUCTIONS
The ELT Remote Unit is designed to be powered by a Duracell DL1/3NB 3 Volt
Lithium Batteries. Under normal operating conditions, the Lithium battery must be
replaced every five years. If the ELT is activated for an unknown period of time, the
lithium battery must be replaced.
To install or replace the Remote Unit Battery, follow these steps:
Remove the three Retaining Screws that secure the top and bottom half of the remote
unit (Figure 17). Loosen the two Switch Retaining nuts located on the front of the unit
(Figure 17).
Carefully remove the top half of the Remote unit, exposing the battery compartment
(Figure 17). If replacing an old battery, carefully inspect the battery contacts for dirt
or corrosion. IF the contacts need cleaning, use only non-abrasive electrical contact
cleaner and a stiff brush. Badly corroded contacts should be replaced.
Insert the battery with the polarity as shown in Figure 17. The polarity is also
engraved on the bottom of the battery compartment.
Replace the top half of the remote unit and replace the three retaining screws and
tighten the two switch retaining nuts.
The next remote battery replacement date should be recorded on one of the adhesive
labels supplied and affixed to the ELT in a readily visible location.
Figure 17: Battery Replacement for ELT Remote Unit.