Ameri-King АК-451-Series - Manual (Page 7)

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1.4 BATTERY REPLACEMENT INSTRUCTIONS
1.4.1 ELT MAIN UNIT BATTERY REPLACEMENT INSTRUCTIONS
The Ameri-King Corp. Model AK-451 ELT is designed to use only with Ameri-King
lithium battery packages which have been tested per TSO-C126, TSO-C91a
requirements.
The use of any other battery will void all warranties of the ELT by Ameri-King
Corp. The ELT does not meet the requirements of TSO-C126, and TSO-C91a or
FAR 91.52 if used with any other type of battery. Using any other battery is not
allowed (forbidden).
The Ameri-King Battery Pack has a 10 years shelf life and 5 years useful life. It will
last for 78 hours at -20 deg C, at end of 5 years battery life.
FAR 91.52 (d) (i) requires that ELT batteries be replaced when the transmitter has
been in use for more than one cumulative hour.
The label sticker for expiration date of the batteries must be affixed on the
outside of the ELT battery case and recorded in the aircraft logs.
Battery Box Silkscreen
The owner or operator may perform Battery replacement provided that the
accessibility, removal and reinstallation of the ELT can be considered “simple” as
prescribed in Advisory Circular 91-44A, Paragraph 8.a (See Appendix B).
The following is a step-by-step instruction for replacing ELT Battery Pack P/N
4500010-( ) Series:
All batteries are strongly advised to be serviced by Ameri-King or its authorized
service centers. End users may return the entire ELT for replacing the batteries
and post functional tests.
LITHIUM BATTERY PACK – NON-RECHARGEABLE
P/N 4500010 -1 FOR USE ON Model AK-451-(AF)(AP)(S)
RTCA DO-160E Environmental Categories
F1XB(227)(227)(227)XXXXXXXXXXXXXXXXXX
Replace battery pack
after one culmulative hour
of use or by date shown:
*Battery type: Lithium LiMn02
Replace Main Batteries
By Date: _________
””” WARNING ”””
USE ONLY DURING SITUATIONS OF GRAVE
AND IMMINENT DANGER!
NEVER CHARGE, SHORT CIRCUIT, PUNCTURE,
DEFORM, INCINERATE, OR OPEN. DO NOT
SUBMERGE IN WATER OR HEAT ABOVE 85 O C.
REMOVE WHEN DISCHARGED
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1. Using the 3/32” Hex Driver supplied with the ELT, remove the 4 retaining
screws and split lock washers that attach the battery case to the ELT Transmitter
Assembly (See Figure15).
2. Insure both battery connectors are locked-in properly by its tab.
Verify the battery pack voltage is 13 +/- 0.5 VDC
Ensure that the gasket is in place (See Figure 4).
3. Place the Transmitter Assembly face down on a bench. Press down on the
battery case to compress the battery contact springs. Replace the four battery retaining
screws and lock washers and evenly tighten until the battery case is pulled flat against
the Transmitter Assembly.
4. Remove any existing battery replacement date labels from the battery case and
install the new label you prepared in step 3 above in a readily visible location on the
ELT.
5. After battery replacement, a transmitter function test must be performed as
described in section 2.3
of this manual.
””” WARNING ”””
FOR AVIATION EMERGENCY USE ONLY.
UNLICENSED OPERATION UNLAWFUL
Figure 3: Battery Replacement for ELT Main Unit
Figure 4: Battery Replacement for ELT Main Unit (Actual View)