FES Maintenance manual, v1.16 May 2020
Page 18 of 24
Installing the battery packs into the sailplane:
Warning:
Make sure that you fully charge both battery packs before
installation into the sailplane. Both battery packs
must have
an
approximately equal voltage of cells (approx. 4.16 V per cell). The total
voltage difference of each battery pack
must be less
than 1 V!
1.
Open the battery compartment cover.
2.
Check that the power switch (key) is OFF.
3.
Check that FCU and all other instruments are OFF
–
i.e., Flight computer, Flarm,
Radio, Transponder, PDA, etc.
4.
Insert the first pack into the fuselage with contacts facing forward.
5.
Slide it back against the rear bulkhead.
6.
Insert the second pack into the fuselage with contacts facing rearward.
7.
Place the fixation plates.
8.
Tighten the battery pack fixation knobs.
9.
Insert and secure the temperature sensor connectors (DATA) to each battery pack.
10.
Insert the RED (+) contact pin into the front pack.
11.
Insert the BLACK (
–
) contact pin into the rear pack.
12.
Close the battery compartment cover.
4.4.2 Removing and installing the motor
Note:
Removal of the motor from the sailplane is only allowed with
written
permission
by the manufacturer. Unauthorized removal voids the warranty!
Warning:
Flights without the motor are not allowed due to a significant
change in the centre of gravity (C.G.)!
To remove the motor from the glider
(with spinner and propeller attached):
1.
Open the ventilation fully
–
push the ventilation lever forward.
2.
Remove the round composite cover on the front motor mounting rib from inside the
cockpit.
3.
Unlock the springs securing the DB15 cable connector. Carefully unplug the
connector from the motor.
4.
Unscrew three self-locking nuts from the rear of the motor.
5.
Label the three power cables as A, B, and C and note their respective connectors
and position on a piece of paper (required for installation).
6.
Disconnect the three power cables.
7.
Un-secure six M8 bolts and remove them. The M8 bolt below the power cables has
a thinner head. Hold the motor assembly and carefully remove it from the fuselage.