Rudder Removal; Rudder Installation; Rudder Pedal Removal; Control Cables Removal - Thrush Aircraft S2R-R1340 Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2R-R1340
D. Adjust the flap push-pull rods to the
proper length and connect them to
the torque tube arms.
E. Shorten the length of the maximum
travel limit bolt located on the right
side of the fuselage adjacent to the
torque tube.
F. With the flap switch, lower the flaps
to the fully extended position.
G. Using a propeller
equivalent instrument to measure the
flap angular travel, adjust the down
micro-switch located on the vertical
shaft adjacent to the jackscrew to
achieve 15 (±1) degrees.
and extend the flaps after each
adjustment to
adjustment.
H. With the flaps in the fully extended
position, adjust the maximum travel
stop bolt so that there is a 0.060" to
0.100" gap between the bolt head
and the stop pad (See Figure 7-5).
I. Retract the flaps with flap switch and
turn the master switch "OFF."
J. Tighten and torque all hardware to
the specifications
Section 2 of this manual.
RUDDER
Ref. Figures 7-6 & 7-9
The all metal rudder is attached to the
vertical stabilizer at three hinge points.
The rudder control cable is connected
directly from the rudder horn at the
bottom of the rudder to the rudder pedal
adjustment channels. The left and right
rudder cables route from the adjustment
channels aft around pulleys where they
pass through the fuselage side skins and
attach to adjustment straps on the rudder
horn. A spring-loaded balance cable is
routed between the pedal adjusting
channels and forward around pivoted
pulleys located on the hopper rear wall.
The rudder controls are interconnected
by springs to the aileron system so that a
wing may be lifted with rudder alone.
7-10
AIRCRAFT MAINTENANCE MANUAL
protractor or
Retract
verify proper
called out in
This feature provides a convenience
during cross-country flight and is an
added safety feature in case the aileron
system becomes inoperative. (Fig. 7-3)

RUDDER REMOVAL

Ref. Figures 7-6 & 7-9
A. Disconnect rudder
rudder horn.
B. Remove attaching hardware from
rudder hinge points.
C. Remove the rudder from the aircraft.

RUDDER INSTALLATION

A. Place rudder on hinge points.
B. Install the hardware in the hinge.
C. Attach rudder cables to rudder horn.
D. Check rudder operation to determine
that no friction or binding is evident.
E. Readjust control cables and rudder
stops as required
instructions.

RUDDER PEDAL REMOVAL

Use Figure 7-6 as a guide when
removing or installing rudder pedals.

CONTROL CABLES REMOVAL

A. Disconnect the aft cables from
forward side of shackles.
B. Remove skins from side of fuselage.
C. Disconnect cables at turnbuckles.
D. Remove all cable guards from the
rudder cable pulleys and disconnect
the aft cables from rudder horn. The
cables from the turnbuckles aft are
free for removal.
E. Disconnect cables from adjustment
channel. The cables from the
turnbuckles forward to the pedals are
free for removal.
F. Remove the balance cables.
G. Remove rudder-aileron cable from
aileron vertical bell crank
cables from
per rigging
Effective: 01/01/08