6
2.
Insert The 4-40 bolt through the servo arm
bushing.
Slide the bolt and bushing into the servo arm
mount.
Note: The top of the of the servo arm bushing has
a recess for the 4-40 bolt head to fit into.
3.
Insert the pushrod coupler into the servo
mount.
Slide the pivot pin into the servo mount and
through the pushrod coupler.
4.
Place the E-clip into the groove at the end of
the pivot pin.
Mount the servo control horn onto the 4-40
bolt and secure using the lock nut.
8-32 x 3” Hardened Bolt
8-32 Nut
Pushrod coupler
Pivot Pin
E Clip
Adjustable horn bracket
5.
With the aileron servo in place, make a mark
on the aileron at a 90º degree angle to the
trailing edge and in line with the servo. Look
for the control horn hard point under the cov-
ering. This is the location for the control horn.
6.
Using a 5/32” drill, drill half way through the
aileron hole from both top and bottom till the
drill passes through the aileron.
7.
Insert the 8-32 bolt through the top of the con-
trol surface.
8.
Using thread lock, place the 8-32 nut on the
bolt and tighten down on the control surface.
9.
Thread the adjustable horn bracket onto the
top of the 8-32 bolt till the top of the bolt just
exits.
NOTE: Do not thread the adjustable horn bracket
farther than 1/4” down on the 8-32 bolt.
Control flutter can occur when the bracket
is to close to the control surface.
