Supplement Airplane Maintenance Manual
Cessna 172 with TAE 125-02-99 / -114
AMM-20-02
Chapter:
Issue:
Issue Date:
Page:
Content:
20-AMM-24-02
3
06.11.2013
8
16
Rev. No:
Rev. Date:
1
25.08.2014
8.
Functioning check of the FADEC backup battery
(1)
Start engine in accordance with Technify Motors
GmbH POH supplement
(2)
Turn off all avionics
(3)
FADEC Backup Battery Test
a) Alternator - OFF, engine must operate
normally
b) Battery - OFF, engine must operate normally,
FADEC Battery test successfully
c) Battery - ON
d) Alternator - ON
(4)
Shut down engine
9.
Replacing the Backup Battery
A.
Remove the Backup Battery
(1)
Disconnect the main battery. Refer to 3,
Disconnect / Connect the Main Battery for
Maintenance.
(2)
Disconnect the negative cable from the backup
battery.
(3)
For 28V system only: disconnect the cable which
interconnects the two batteries.
(4)
Disconnect the positive cable from the backup
battery.
(5)
Remove the battery carrier (top)
(6)
Remove the backup battery from the airplane.
B.
Install the new Backup Battery
(1)
Place the backup battery into position in the
battery carrier (bottom).
(2)
Install the battery carrier (top)
(3)
Connect the positive cable to the backup battery
(4)
Connect the negative cable to the backup battery
(5)
For 28V system only: interconnect the two
batteries
(6)
Connect the main battery. Refer to 3,
Disconnect / Connect the Main Battery for
Maintenance.
(7)
Perform functioning check of the FADEC backup
battery.
Note:
Charge the battery i.a.w. the manufacturers instruction before
installation into the aircraft.
Use Trickle charge (13.6-13.8V, Initial current 1,08 or smaller).
Содержание Cessna 172
Страница 8: ......