User Manual

44 Hangar 9 P-51D Mustang Sport 40 Assembly Manual
 Step 12
Use a drill and 13/64-inch (5mm) drill bit to enlarge the hole
in the wheel.
 Step 12
Attach the 2
3
/
4
-inch (70mm) wheel to the retract strut using
two 5mm wheel collars. Place a drop of light machine oil on
the axle so the wheel can rotate freely.
 Step 14
Position the strut in the retract mechanism. There should be
a slight amount of toe-in to help the ground tracking of your
model during taxi, take-off and landing.
 Step 15
Also check that the wheel is centered in the wheel well.
 Step 16
Tighten the setscrews in the retract mechanism to leave
indentations on the strut. Remove the strut and use a flat file
to create a flat area on the strut where the setscrews will rest
so the strut won’t rotate in the mechanism.
Note: One retract will have the setscrews to the front,
and one to the rear. Make sure to check that you are
placing the flat on the correct side for each wing panel.