Extra 300LT - Battery

CHAPTER 24
PAGE 8
PAGE DATE: 21. March 2014
MAINTENANCE MANUAL EXTRA 300LT
The positive side of the battery is connected to the coil of the
battery relay. This relay remains in open state until the
BATTERY switch is placed to the ON-position. Placing the
BATTERY switch in the ON-position provides a ground for
the battery relay energizing this relay. With the battery relay
energized, a circuit exists from the battery to the bus bar. The
battery supplies power to the bus bar through the 60/80 A
fuse.
The energized battery relay will also allow power from the
battery to the starter relay (4).
External power is connected to the main bus by the external
power relay (3). If the battery shall be charged via external
power, the BATTERY switch must be in ON-position.
The battery can also be charged via the direct charge socket
located on the left forward side of the bottom fuselage cover.
In this case the BATTERY switch should be in the OFF-
position.
24-30-11 Battery
Removal/Installation (Up to SN LT004)
N O T I C E Ensure the BATTERY switch is in Off-position.
1 Remove the engine cowling, the main fuselage cover and
the LH cuff as per chapter 51.
2 Remove the front seat as per chapter 25.
3 Drain the center fuel tank.
4 Loosen the center fuel tank and move to the RH side.
5 Drain the smoke system.
6 Remove the smoke acro tank, remove the fitting.
7 Disconnect the electrical wiring from the battery.
8 Remove the 4 attachment nuts (LN9348-06) and the top
attachment frame.
9 Lift the battery out of its bottom frame and remove.
10 Install in reverse sequence of removal.