9
Twin Otter ARF Assembly Manual
Step 18
Remove the pushrod from the elevator horn and use
pliers to make a 90-degree bend in the pushrod at the
marked location. Trim the bent portion to a length of
1/4-inch with sidecutters.
Step 19
Attach the clevis to the outer hole of the control horn
and secure it with the silicone keeper. Slide the bent
end through the outer servo arm hole and secure it
with a snap keeper.
Step 20
Optional Setup:
You may choose to use Z-bend
pliers to form a Z-bend in the pushrod in place of the
90-degree bend and snap keeper.
Step 21
Repeat steps 4 through 19 to install the servo in the
opposite stabilizer half.
Aileron Servo Installation
Parts Required
Wing panels (left and right)
Servos with hardware (2)
Clevises (2)
Snap keepers (2)
Silicone keepers (2) 4-inch steel pushrods (2)
9-inch servo extension leads (2)
#2 x 3/8-inch woodscrews (8)
10 x 11 x 20mm servo mounting blocks (4)
Radio
Tools Required
Ruler
#1 Phillips screwdriver
Pin vise
5/64-inch drill bit
Sidecutters
Pencil
Low-tack tape
Felt-tipped pen
Dental floss
Thin CA
30-minute epoxy
Mixing sticks
Mixing cups
Pliers
Z-bend pliers
Note:
The left-hand aileron installation is shown here.
Step 1
Install the grommets and bushings in each of the two
aileron servos. Note that the bushings are installed
from the bottom of the mounting lugs.