Backup Battery; Backup Battery Removal; Backup Battery Re-Installation; Backup Battery Checkout - Garmin GI 275 Maintenance Manual

5.5 Backup Battery

5.5.1

Backup Battery Removal

1. Remove the GI 275 in accordance with Section 5.1.1.
2. Remove the four screws securing the battery access panel to the top of the GI 275 and remove the
panel.
3. Remove the battery by pulling the battery pack straight up until it is unseated from the connector.
5.5.2

Backup Battery Re-installation

1. Lower the battery with the rubber end caps onto the GI 275 connector. Ensure proper alignment
and push down to seat the connector.
2. The unit will automatically power on. Power off the unit.
3. Re-install the battery access panel and the four panel screws. Torque screws to 8 ± 1 in-lbf.
4. Re-install the GI 275 in accordance with Section 5.1.3.
5.5.3

Backup Battery Checkout

1. Perform an LRU Status Check as described in Section 5.14.1.1 to ensure the battery is connected
properly.
2. If the battery was replaced, perform the Backup Battery Check as described in Section 5.12.5.
190-02246-11
Rev. 1
GI 275 Part 23 AML STC Maintenance Manual
Page 5-13