Cessna 177 SERIES Service Manual page 303

NOTE 16-101A. "G" SWITCH OPERATIONAL CHECK.
a. Remove emergency locator beacon trana-
Transmitter equipped with the C589511-0105 mitter from aircraft in accordance with paragraph 16-100.
battery pack can only be replaced with another b. While holding transmitter in one hand, sharply
C589511-0105 battery pack.
strike the end of the case in the direction of activa-
tion, indicated on the case of the transmitter.
a. After the transmitter has been removed from
1. Verify that the G switch has been actuated.
the aircraft in accordance with paragraph 16-100, c. Reset the G switch.
place transmitter switch in the OFF position. d. Reinstall transmitter in aircraft in accordance with
b. Remove the four screws attaching the cover to paragraph 16-100.
the case and then remove the cover to gain access to
the battery pack.
c. Disconnect the battery pack electrical connector
and remove battery pack.
d. Place new battery pack in the transmitter with -- C589511-0103 TRANSMITTER
four batteries as shown in the case in figure 16-100.
e. Connect the electrical connector as shown in fig-
ure 16-18.
NOTE
Before installing the C589511-0105 pack,
check to ensure that its voltage is 7.5
volts or greater.
f. Replace the transmitter cover on the unit, and
pressing the cover and unit together, attach cover with
four Nylok Patch screws.
g. Stamp the new replacement date on the outside
of the ELT. The date should be noted on the switching
nameplate on the side of the unit as well as on the
instruction nameplate on top of the unit.C851
5 B Y
C58551-0 05 BATTERY PACK
WARNING
The battery pack has pressurized contents.
Do not recharge, short, or dispose of in fire. Figure 16-18. Battery Pack Installations
16-102. TROUBLESHOOTING. Should your Emer-
CAUTION
gency Locator Transmitter fail the 100 Hours per-
formance checks, it is possible to a limited degree
to isolate the fault to a particular area of the equip-
Be sure to enter the new battery pack expira-
ment. In performing the following trouble shooting
tion date in the aircraft records. It is also
procedures to test peak effective radiated power,
recommended this date be placed in your ELT
you will be able to determine if battery replacement
Owners Manual for quick reference. is necessary, or if your unit should be returned to
your dealer for repair.
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16-39