21
E-flite Habu 32 EDF ARF Assembly Manual
4. Prepare a 5/64-inch (2mm) drill bit by wrapping
a piece of low-tack tape around the drill bit 5/8-
inch (16mm) from the end of the bit. This will act as
a marker so you don’t accidentally drill through the
top of the wing. Place the drill bit in a drill.
5. Use the drill and drill bit prepared in the
previous step to drill the four holes for the landing
gear block mounting screws.
6. Remove the retract mechanism from the wing.
Use a #1 Phillips screwdriver to thread a 3mm x
14mm countersunk self-tapping screw in each hole
to cut threads into the landing gear rails. Remove
the screws after threading the holes.
7. Place 2–3 drops of thin CA in each of the holes.
This will harden the threads made by the screws
making them more secure when the landing gear
block is installed.
We have designed the main gear struts to work
with both the fixed gear and the suggested
retracts. These struts are designed for the weight
and speeds of the Habu. Use the struts supplied
with the kit for the retract assemblies.
Always use threadlock on metal-to-metal fasteners
to prevent them from vibrating loose.
8. Slide a main gear strut into the retract
mechanism. Use the setscrews and a 1.5mm
hex wrench to secure the main gear wire in the
mechanism. The setscrews will tighten down on the
flats at the top of the strut to prevent the strut from
rotating in the block. Assemble the right and left
main gear retract assemblies at this time.
Note
: The first shipment of EFL 15–25 size
retracts were shipped with only one setscrew
holding in the main strut. This is fine for the
lower weight limits of the retracts, but for the
higher end of the weight limits, we suggest
using a setscrew in each side of the strut. Future
shipments will have a setscrew in each side of
the unit. If your units only have a setscrew in
one side of the unit, remove another setscrew for
each of the fixed gear units supplied with the kit.