Flap Removal; Flap Installation; Flap Rigging - Thrush Aircraft S2RHG-T65 TURBO THRUSH Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
D. Disconnect the electrical connections, connecting the micro-switches and motor.
Identify the wires and locations for installation reference (See Figure 7-4).
E. Remove one attach bolt at the motor end, loosen the other bolt slightly and remove
the four bolts connecting the jackscrew to the flap torque tube.
F. Install new flap jackscrew assembly into fuselage and connect with hardware
which was removed or new hardware. NOTE: Rigging must be checked after
installation of new jackscrew or pushrods. Refer to flap rigging.
G. Reconnect the electrical wires and test flap motor for proper operation.
H. Connect pushrods and after flaps are rigged properly ensure that all bolts are tight
and wires are tied off.
I. Reinstall fairings and cowling.
A. Disconnect flap push rod at flap. Do not change position of rod end on push rod.
(See Figure 7-5)
B. Remove flap hinge bolts.
C. Remove flap from aircraft.
Installation of the flap is the reverse of the removal procedure. In the event push rod
length has been altered, the flap will have to be completely re-rigged.
A. With the master switch "ON," fully retract the flaps (up flaps) with the flap switch.
B. Disconnect the flap push – pull rods at the torque tube arms.
C. Hold a straight edge on the wing lower surface at wing station 49.0 (approximately
24 inches outboard of the fuselage side). In the properly rigged flap "up" position,
the straight edge should contact the lower surface of the wing, front spar, the flap
trailing edge and the lower surfaces.
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 protractor or 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. Retract and extend the flaps after each
adjustment to verify proper 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 7-6).
Effective: 05/05/04
AIRCRAFT MAINTENANCE MANUAL

FLAP REMOVAL

FLAP INSTALLATION

FLAP RIGGING

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