Elevator Balance Spring; Elevator Removal; Elevator Installation; Elevator Rigging - Thrush Aircraft S2RHG-T65 TURBO THRUSH Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
The elevator system has a balance spring attached to the forward elevator bell crank with
a cable on top and spring on the other end attached to bell crank support bracket. The
cable and spring are connected with a turnbuckle for final adjustments. With the flaps up
and the elevator in neutral and the forward stand assembly is clamped on flap transfer
tube at 48° from center on fwd side. Rig the cable to obtain a spring length of 39". The
dual cockpit elevator balance spring is connected to the lower portion of the forward
elevator bell crank and to the left lower longeron fuselage station 193.43 inches with a
turnbuckle for adjustment. With flaps up and elevator neutral, rig spring to 36 inches in
length.
A. Disconnect aft push tube from elevator horns.
B. Disconnect the trim tab push rod at elevator trim-tab.
C. Remove hardware attaching both of the elevators horns together.
D. Remove all hinge bolts from leading edge of elevator.
E. Remove the elevator from aircraft.
A. Position elevator on aircraft.
B. Attach the elevator to the horizontal stabilizer.
C. Bolt the two elevator horns together.
D. Connect aft push tube to elevator horns.
E. Connect trim-tab push rod at elevator trim.
The aft push tube will have to be disconnected from elevator horns for adjustment.
A. Set the forward stop on the control stick so the stick is approximately seven inches
from the hopper when in full forward position.
B. Set the elevator to its full down travel of 17 (±1) degrees and adjust the aft end of
push tube at the elevator horn to match that position. Connect push tube to
elevator horn.
Assure the inspection hole in the rod end is covered by the
push tube threads. It may be necessary to let the control
stick come back slightly to achieve coverage.
7-10
AIRCRAFT MAINTENANCE MANUAL

ELEVATOR BALANCE SPRING

ELEVATOR REMOVAL

ELEVATOR INSTALLATION

ELEVATOR RIGGING

*NOTE *
Effective: 05/05/04