Piper Dakota Maintenance Manual page 178

BATTERY REMOVAL AND INSTALLATION (NARCO) (Figures 23-4 and 23-5)
l. Set ON/OFF/ARM switch on transmitter to OFF.
2. Disconnect antenna coaxial cable from elt.
3. Remove elt from its mounting bracket by releasing latch on strap and sliding elt off bracket.
4. Extend portable antenna.
5. Unscrew four screws holding control head to battery casing and slide apart.
6. Disconnect battery terminals from bottom of circuit board.
7. Discard old battery pack. (DO NOT EXPOSE TO FLAME.)
The battery pack is shipped with a sealant on the inside lip so that
a water tight seal will be retained. DO NOT REMOVE THIS
SEALANT.
8. Connect new battery pack terminals to bottom of circuit board.
9. Reinsert control head section into battery pack. Be careful not to pinch any wires, and replace four
screws. If four holes do not line up, rotate battery pack l80° and reinsert.
10. Slide portable antenna back into stowed position.
11. Place transmitter into its mounting bracket and fasten strap latch.
12. Connect antenna coaxial cable to elt and ensure that contact separator is inserted between antenna
contact finger and portable antenna. (Refer to figure 23-5.)
l3. Press RESET button and set ON/OFF/ARM switch to ARM.
14. Make an entry in aircraft logbook, including new battery expiration date.
15. A unit operational check may be performed on elt. (Refer to Testing Emergency Locator Transmitter.)
Inspect external whip antenna for any damage. Avoid bending
whip. Any sharply bent or kinked whip should be replaced.
Antenna damage may cause structural failure of whip in flight.
DESCRIPTION, OPERATION, AND TESTING OF PILOT'S REMOTE SWITCH (Refer to Pilot's
Operating Handbook)
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
—CAUTION—
—NOTE—
1H17
23 - 21 - 00
Page - 23 - 04
Reissued: August 1, 1986