Ameri-King АК-451-Series - Manual (Page 8)

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1.4.2 ELT REMOTE UNIT BATTERY 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 5). Loosen the two Switch Retaining nuts located on the front of the unit
(Figure 5).
Carefully remove the top half of the Remote unit, exposing the battery compartment
(Figure 5). 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 5. 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 5: Battery Replacement for ELT Remote Unit
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SECTION II
OPERATIONS
2.1 GENERAL
This section describes the operation of the ELT, Emergency Locator Transmitter,
model AK-451.
The following types are applicable for the model AK-451:
a.
Automatic Fixed - Fixed ELT (AF):
See paragraph 1.2.1 (a)
b. Automatic Portable - ELT (AF) (AP) with dual antennas:
See paragraph 1.2.1 (b)
c.
Automatic Portable - ELT (AP):
See paragraph 1.2.1 (c)
d.
Survival-ELT (S):
See paragraph 1.2.1 (d)
The AK-451 is a "third generation ELT," transmitting on 406.028, 121.5 and 243.0
MHz. The ELT is designed to meet or exceed the requirements of TSO-C126 and
TSO-C91a and the mandatory automatic ELT requirements of FAR Part 91. The ELT
meets the requirements of DOT Aviation Regulations, Section 3, Chapter 3, Part 2.
The ELT automatically activates during a crash and transmits the standard swept tone.
The Green ON lights flashing located on both the ELT Main Unit and the Cockpit
Remote Switch unit and the buzzer sound periodically indicates when the ELT is
activated. The ON switch on the Remote Switch Unit allows you to turn on the ELT
for testing. The RESET Switch on the Remote Switch Unit enables to reset the ELT.
In normal operation, the Main Switch on the ELT Unit must be selected at “ARM"
position.
Note:
You cannot "disarm" or disable the unit from the cockpit; you can only deactivate the
ELT after it has been activated.
The ELT unit is able to withstand extremely harsh environments. Units exactly like
yours have been subjected to numerous 500G shock pulses; 1000 pounds crash