Detail Steps/Work Items Key Items/References
CAUTION: DO NOT REMOVE THE SCREWS ON THE FRONT SIDE OF THE ELT UNIT.
(1) Use the 3/32" hex. driver which comes with the ELT. Remove the 4 retaining screws and split lock-washers which attach the battery case to the transmitter assembly. Refer to Figure 2. Loosen the screws evenly a few turns at a time, until you relieve the battery contact spring pressure.
(2) Remove the batteries from the battery case. Hit the open end of the battery case lightly on a flat surface. To loosen the batteries.
(3) Examine the battery contacts. Use a stiff brush and an electrical contact cleaner to carefully remove any dirt or corrosion.
CAUTION: DO NOT USE ABRASIVE CLEANERS. THE CONTACTS ARE NICKEL AND GOLD PLATED SPRING STEEL. AN ABRASIVE CLEANER WILL REMOVE THIS PLATING AND DAMAGE THE CONTACTS.
(4) If the contacts are badly corroded, replace them.
(5) Use one of the adhesive labels which come with the ELT to make a record of the new battery replacement date.
(6) Install the new batteries correctly in the battery case. There are battery installation placards inside each battery case.
(7) Do a test of the battery voltage. The polarity of the battery nearest the index pin hole must be positive. Refer to Figure 3. The voltage must be a minimum of 6 volts.
Doc # 6.02.01 Page 205
Rev. 4 09 Jan 2003
25-60-00
AMM
Index Pin Hole
% Figure 3: ELT Battery Voltage and Polarity Test (ACK E-01)
Top Half of RCPI Switch Attachment Nuts
Attaching
Screws
% Figure 4: RCPI Battery Installation (ACK E-01)
Page 206 Doc # 6.02.01 09 Jan 2003 Rev. 4
25-60-00
Equipment/Furnishings
DA 40 Series
Detail Steps/Work Items Key Items/References
(8) Install the battery case to the transmitter assembly: S Align the index pin hole in the battery case with the index pin of the transmitter assembly. S Make sure that the O-ring seal is seated correctly.
(9) Put the transmitter assembly face down on a clean bench. With the modular connector cable immediately past the edge of the bench.
(10) Push down on the battery case to compress the battery contact springs.
(11) Install the 4 battery case retaining screws and lock-washers.
(12) Equally tighten the screws until the battery case is flat against the transmitter assembly.
Note: The O-ring can catch between the battery case and the transmitter assembly. Release the 4 battery case retaining screws slightly. Make the O-ring slightly wet and push the O-ring into its location with a thin screwdriver. Tighten the 4 battery case retaining screws.
(13) Remove the battery replacement date label from the battery case and discard it.
(14) Install the new battery replacement date label you prepared at step 5.
(15) Do a functional test of the ELT. Refer to Paragraph 3.
25-60-00
AMM
% You must only use the Jolliet battery pack P/N JE2-1978-3. You must change the batteries on or
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Detail Steps/Work Items Key Items/References
(1) Position the MANU-OFF/RST-AUTO switch to OFF.
(2) Remove the ELT from its mounting tray. Refer to Paragraph 2.
(3) Extend the portable antenna by pulling the tab in "T", which is fixed at its extremity.
(4) Unscrew the two screws located inside the two holes, at each side of the front of the ELT, holding together the "head" and the battery pack.
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