Throttle Connector; Installing The Throttle Connector; Rudder Pushrod; Installing The Rudder Control Horn - Model Tech SUKHOI 40 Instructions Manual

PARTS REQUIRED
{1} Adjustable Servo Connector Assembly

INSTALLING THE THROTTLE CONNECTOR

1) Install one adjustable servo connector
through the second hole out from the center of one
servo arm. You may have to enlarge the hole in the
servo arm to accommodate the servo connector.
Remove the excess material from the servo arm
using wire cutters. See figure # 5 below.
Figure # 5
SERVO ARM
After installing the adjustable servo connec-
tor apply a small drop of Kwik Bond Thin
C/A to the nut. This will prevent the connector
from loosening during flight.
2) Turn on the radio system. Check to en-
sure that the throttle servo output shaft is moving
in the correct direction.
3) Slide the adjustable servo connector/
throttle arm assembly over the end of the throttle
pushrod wire. Position the throttle stick and the
throttle trim at their lowest positions.
4) Manually push the carburetor barrel fully
closed. Angle the servo arm back about 30º from
center and attach it to the servo. The arm should
face the left side of the airplane (looking from the
rear). With the carburetor barrel fully closed,
tighten the set screw in the adjustable servo con-
nector. You will need to make a bend in the push-
rod wire to allow it to align with the servo arm.
See photo # 37 below.
Photo # 37
PUSHROD
WIRE
SET SCREW
SERVO
CONNECTOR
NUT
SERVO
CONNECTOR
5) Test the movement of the throttle push-
rod. Full forward stick and full forward trim should
result in the carburetor barrel opening completely.
Full back stick and full forward trim should result
in the approximate idle setting. Full back stick
and full down trim should result in the carburetor
barrel closing fully.
6) When satisfied that the pushrod linkage
is adjusted correctly and no binding is present,
install the servo arm set screw and remove any
excess pushrod wire using wire cutters.
{1} Wood Dowel (D-34)
{1} 2mm x 90mm Wire w/L-Bends Both Ends
{1} 2mm x 210mm Wire Threaded One End
{1} Nylon Clevis w/2mm I.D. Hole
{1} Nylon Snap Keeper
{1} Nylon Control Horn (large)
{1} Nylon Control Horn Backplate
{2} 2mm x 15mm Machine Screws

INSTALLING THE RUDDER CONTROL HORN

1) The centerline of the rudder control horn is
located on the left side of the rudder (looking from
behind) 1-3/16" down from the bottom of the hori-
zontal stabilizer. Position the control horn so the
clevis attachment holes are directly in-line with the
hinge line. The control horn should also be parallel
with the hinge line. See figure # 6 below.
Figure # 6
CONTROL HORN BASE
2) When satisfied with the alignment, use a
3/32" drill bit and the control horn as a guide and
drill the mounting holes through the rudder.
3) Mount the control horn to the rudder by
inserting the 2mm x 15mm machine screws
through the control horn mounting base, through
the rudder and into the backplate. Tighten the
screws, but do not overtighten them. You do not
want to crush the wood.
19
PARTS REQUIRED
CONTROL HORN
MOUNTING SCREW