Flap Jackscrew Removal - THRUSH S2R – G10 Maintenance Manual

AIRCRAFT MAINTENANCE MANUAL
WING FLAPS
Ref. Figure 7-5
Wing flaps installed on the S2-G10 are of
all-metal construction similar to the
ailerons. Each flap spans from the
fuselage to the aileron and is attached to
the aft wing spar by three (3) 4130 steel
hinge brackets with ball bearing hinge
points. The flaps have been completely
sealed against chemical spray. A switch
located on the aft side of the throttle
quadrant electrically controls the flap
operation. An electric motor-driven
jackscrew below the cockpit floor rotates
a torque tube. Push rods attached to
arms at each end of the torque tube
move both flaps to the desired position
simultaneously.

FLAP JACKSCREW REMOVAL

A. Remove left side fuselage skin at
cockpit and hopper.
B. Remove wing root fairings to gain
access to the flap push rod and
jackscrew attach bolts.
7-8
Page
THRUSH AIRCRAFT, INC – MODEL S2R-G10
Figure 7-4: Aileron Assembly
C. Disconnect each flap from the push rod
and allow flap to swing and hang under
wing.
D. Disconnect the electrical connections,
connecting the
motor. Identify the wires and locations
for installation reference.
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 side skins.
micro-switches and
Effective: 03/26/2010