Hangar 9 P-51D Mustang 20cc Manuel D'utilisation page 19

80. Test fi t the gear door hinge in the slot near the landing gear
mount. Once the fi t has been checked, use a small amount of
5-minute epoxy to glue the hinge in the slot. Allow the epoxy
to fully cure before proceeding.
81. Attach the gear door linkages to the mount on the strut using
two M3 x 8 button head screws and 2mm hex wrench.
82. Slide the mount on the strut until there is maximum clearance
between the door and wheel. Use an M3 x 3 setscrew and
1.5mm hex wrench to secure the mount to the strut.
 Repeat this section for the remaining fixed gear installation.
 RETRACT INSTALLATION
 Skip this section of the manual if the fixed
gear has been installed on your model.
83. Use a hobby knife and #11 blade to remove the covering from
the retract openings in the wing. Trim the covering inside the
opening.
84. Remove the wire strut and bushing from the retract frame.
P-51D Mustang 20cc
85. Secure a 9-inch (230mm) servo extension to the servo using
a commercially available fastener (SPMA3054).
86. Guide the servo lead through the wing. We recommend
removing the fl ap servo cover to make the installation easier.
87. The retract lead will exit the wing root with the fl ap and
aileron servo leads.
 Make sure to mark each lead for easier connection
when assembling the model before flight.
88. Secure the retract in the wing using the hardware included
with the retract. Place a drop of threadlock on each of the
screws before installing them in the retract. Use a 2mm hex
wrench to tighten the screws.
 It may be necessary to use the spacers included with
the retracts to make sure there is no torsional stress on the
retract frame when tightened into position. Torsional stress can
sometimes cause intermittent operation of the retract unit.
89. Slide the retract strut into the retract frame.
19 EN