Horizon Hobby Hangar 9 Ki-43 Oscar 60cc Manuel D'utilisation page 6

4. Use a hobby knife and #11 blade to remove the covering from the
retract openings in the wing. Trim the covering inside the opening.
5. Use low-tack tape to secure a piece of cardboard over the wing. This
will provide a place to rest the retract when routing the air lines and
prevent damage to the underside of the wing.
6. Use a pin vise and 1/8-inch (3mm) drill bit to make a hole in the
retract well for the air line.
7. Cut a 19-inch (482mm) piece of the orange and blue air line. Attach
each air line to the retract. Using different colors makes connecting
the retracts correctly much easier when assembling the model.
 Use a heat gun on low to soften the air lines
slightly so they will slide on the fittings.
 Make sure to orient the air line colors the same on both the
left and right retracts so they operate in the same manner.
8. Route the air lines into the wing.
EN
9. Both air lines can be retrieved at the fl ap servo opening. Use a piece
of low-tack tape to secure the lines together so they don't fall back
into the wing.
10. Fit the retract in the wing. Trim as necessary to provide clearance.
11. The air lines can now be retrieved at the wing root.
12. Place a lock washer on the M4 x 25 button head cap screw. Prepare
four screws at this time.
13. Use the M4 x 25 button head cap screws to secure the retract in the
wing. Place a drop of threadlock on each of the screws before their
installation. Tighten the screws using a 2.5mm hex wrench.
 The cardboard can be removed from the wing
after the retract has been secured.
 It may be necessary to use spacers under the retract frame to
make sure there is no torsional stress when tightened into position.
Torsional stress can cause intermittent operation of the retract unit.
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