THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
7 -
3
Effective:
01/10/05
requirement. The following procedures should be followed when rigging control cables.
Rigging should be accomplished in a hangar. When necessary to rig aircraft in the open, it should be
accomplished during coolest part of the day with tail of the aircraft pointing toward sun. If aircraft is moved
into a hangar for rigging, allow 90 minutes for control cables to adjust to hangar temperature.
The ailerons, elevators, and rudder are all balanced control surfaces and their static balance must be
checked in accordance with the limits show in table 7-19 after repaint or repair.
*** WARNING ***
FLIGHT CONTROL SYSTEMS
Failure to stay within control surfaces static
balance limits could lead to control surface
flutter, which could lead to loss of aircraft,
life, and/or property.
R1
CONTROL STICK
The control stick, which is supported by bushings and bearings, is attached to the torque tube located on top
of the cockpit floor. A series of push tubes, push rods and bellcranks from solid connections between the
control stick and the ailerons. The control stick activates the elevators through push tubes, bellcrank, idler
and elevator horns. The control stick forks and torque tube may be removed for replacement of bearings
and bushings.
REMOVAL OF BEARINGS FROM CONTROL STICK, FORK AND TORQUE TUBE
Remove the control stick dust cover base assembly and the side skins under the cockpit. Use the following
procedures to replace the bearings.
A.
Disconnect the aileron push rods and elevator push tube.
B.
Remove the attaching hardware securing the control stick fork to the torque tube.
C.
Withdraw controls stick and fork from aircraft.
D.
Remove the bolts securing the torque tube to the pillow blocks. (See Figure 7-1)
E.
Remove the torque-tube from aircraft.
INSTALLATION OF BEARINGS IN THE CONTROL STICK FORK AND ON THE TORQUE TUBE
A.
Install bearings on the torque tube and in the control stick forks as required.
B.
Install torque-tube in the pillow blocks.
C. Tighten pillow block hardware per torque values in Section II.
D.
Install control sticks fork on torque tube and tighten hardware per torque values in Section II.
E.
Check freedom of movement on control stick and torque tube.
F.
Lubricate bearings per Section II of this manual.
G. Connect the elevator push-tube and aileron push-rods and check for proper operation of
control system.
H. Replace control stick dust cover base assembly and aircraft side skins.
Summary of Contents for S2R-T660
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