Fei Bao F-4 Phantom II Assembly Manual - page 15
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Step 11: Main Landing Gear
Install airlines on the retract units.
Check for air leaks and smooth operation of the retracts with a hand pump.
Insert the gear into the mounts and extend the gear. The wheels should be set to just a
slight amount of toe in compared to the wing root. A setting that just allows the inner door
to close over the wheel will be very close.
Retract the gear. The outboard end of the retract unit should be positioned up against the
former and the wheel itself should just clear the aft end of the wheel well. You need some
clearance in front of the wheel for the door activating cylinder placement.
If the wheel hits up against the wing root with the retract unit positioned as far outboard as
possible, you can remove one of the C clips and open up the scissor assembly to access the
adjusting screw. Rotating the adjusting screw counterclockwise will shorten the gear stance.
With the wheel and retract unit in position, carefully drill one of the holes and mount the
retract in place. Again, be careful not to pierce the top of the wing.
At this point, mount the wings temporarily on the fuselage and set the final incidence. Check
again to make sure the inner door will close fully over the wheel.
When you are satisfied with the position of the gear, drill and install flat head screws in the
remaining holes.
Photo 23
Check for any binding and trim the door lip a little if necessary.
Step 12: Inner doors
If not already done at the factory, secure the forward hinge to the ply backing plate with four
short button head screws. This reinforces the hinge that will take the brunt of the force
from the door cylinder.
Photo 24