Install The Landing Gear - GREAT PLANES Profile 38 Instruction Manual

C. It is best to leave a slight hinge gap, rather than closing
it up tight, to help prevent the CA from wicking along the
hinge line. The gap is large enough if you can just start to
see light through it. Make sure the control surfaces will
deflect to the recommended throws without binding. If you
have cut your hinge slots too deep, the hinges may slide
in too far, leaving only a small portion of the hinges in the
control surface. To avoid this, insert a small pin through
the center of each hinge before installing. This pin will
keep the hinge centered while you install the control
surfaces.
3. Apply 6 drops of thin CA to both sides of each hinge.
Allow a few seconds between drops for the CA to wick into
the slot. Use a paper towel to wipe off any excess CA that
may have gotten onto the covering.
Do not use accelerator on any of the hinges. Do not
glue the hinges with anything but thin CA and do not
attempt to glue one half of the hinge at a time with medium
or thick CA. They will not be properly secured and the
controls could separate while the model is in flight.
4. Install the rudders and ailerons with their hinges, repeating
the gluing technique described previously.
5. Reinstall the servos, control horns and pushrods. Wrap
the receiver and receiver battery in foam rubber. Mount the
receiver battery on the receiver battery tray with rubber bands.
6. Plug the servos into the receiver. Route the rudder and
elevator servo leads under the wing. Make a small hole in the
bottom wing sheeting to route the servo leads through the
wing ribs. A piece of trim sheet can be used to cover the hole
and servo leads.
7. Glue the two pushrod guides in the slots of the main boom.

Install the Landing Gear

1. Reinstall the nose gear. Use threadlocker on the set
screw and socket head cap screw.
2. Install a 5/32" [4mm] wheel collar, then the 2" [50mm]
wheel and a second 5/32" [4mm] wheel collar on the nose
gear axle. Secure the wheel collars to the axle with 6-32 set
screws and threadlocker. Note: We recommend that flat
spots be filed on the axles, to tighten the set screw on.
3. Insert the main landing gear in the landing gear rails.
Position two nylon landing gear straps over the main
landing gear as shown on the plan. Mark the screw hole
locations on the landing gear rail.
4. Drill a 1/16" [1.6mm] diameter pilot hole at each mark.
5. Secure the main landing gear to the landing gear rail with
the landing gear straps and four #2 x 1/2" sheet metal screws.
6. Slide a 5/32" [4mm] wheel collar over the main landing
gear axle, followed by a 2-1/2" [64mm] wheel and a second
wheel collar. Again file a flat on the axle, under the wheel
collars, and secure the wheel collars to the axles with a
6-32 set screw and threadlocker.
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