Jabiru J450 Constructors Manual
Post-Paint>Fuselage>Interior>Fit flap drive motor
Tuesday, April 6, 2010
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Fit the flap drive motor assembly
With the flap shaft in place and all interior trim fitted, move the flap shaft to the fully
retracted position (flap drive arm back). Apply power (12v) to the flap motor to fully extend
the actuating shaft. Bolt the rod end of the flap drive motor assembly to the flap drive arm
with an AN4-10A bolt through an AN960-516 flat washer, the rod end, an AN960-416 flat
washer, the drive arm, an AN960-416 flat washer and a Nyloc nut. Tighten the nut to safety
and then swing the motor assembly forwards and up until the mounting bracket sits against
the whalebone as shown above.
The alignment requires that the motor
assembly be horizontal and the mounting
bracket be fixed at the inboard edge of the
whalebone as shown by the yellow lines in
the photo above.
Viewed from the front the motor should be
vertical. When this position has been reached,
drill through the bottom hole of the mounting
bracket and fix in place, then mark the top
hole, swing the motor assembly out of the
way and drill the top hole.
Bolt the bracket into place with 2 x AN3 bolts
with a flat washer under the head of each bolt and tighten each bolt firmly.
Flap motor
assembly
Mounting
bracket
Rod end
Flap shaft and
flap drive arm
Whalebone
Actuating shaft