THRUSH AIRCRAFT, INC – MODEL S2R-R1340
AIRCRAFT MAINTENANCE MANUAL
7-18
Effective: 01/01/08
*NOTE *
TAPERED shim(s) P/N
90220-001 (.125” to .080”)
upper attach shim or P/N
90221-001 (.100” to .075”)
lower attach shim may be
required on top and/or lower
attach to properly align
hinges during the string
alignment check.
B. Install the wire deflector cable
allowing sufficient turnbuckle travel
to permit tensioning of the deflector
cable. Attach and tension cable to
35 ±3 Lbs.
C. Install the rudder using AN4-11A
bolts; connect navigation light ground
wire to rudder horn bolt, and connect
navigation light power wire. Install
rudder cables and check travel
22
°
±1º left and right from center.
WINGS
WING REMOVAL
(See Figures 7-11 Through 7-14)
A. Park the aircraft in a closed door
hangar and secure the aircraft for
maintenance.
B. Disconnect the battery and external
power sources.
C. Gain access to the wing splice area
by removing the wing root fairings
and the necessary aircraft side and
belly panels. Disconnect the
electrical, fuel, spray and flight
control systems at points appropriate
for wing removal. Remove the spray
pump and bracket.
D. Support the weight of the wings at
the jack points located approximately
eight feet from the wing tips and
under inboard wing ribs to prevent
wing movement when the attach
bolts are removed.
*NOTE *
It is highly recommended that
mobile wing stands be used
for wing removal and
installation. Contact Thrush
Aircraft, Inc. Service Support
for plans.
E. Remove the bolts holding the rear
spar to the fuselage, one place on
each wing. Remove the ¼ inch bolts
securing the left and right wing,
inboard and outboard attach angles
to the spar webs, 12 places on each
wing.
F. Back the locknuts off of the NAS
bolts in the splice fittings far enough
to conceal the end of the bolt
threads. Spray the bolt shanks with
WD-40 or an equivalent lubricant.
G. Remove the four each 5/16 inch
bolts securing the two locking
sleeves to the tube nuts (See Figure
7-12). Loosen the lower splice fitting
tube nuts. As the nuts are loosened,
the bolts will back out of the holes.
Once the tube nuts are off of the
lower bolts, loosen the upper tube
nuts to back them out of the holes. If
one of the bolts does not move,
rethread the tube nut onto this bolt
and place a spacer between the
opposite end of the tube and the
spar cap (or NAS bolt). Proceed,
once again, to loosen the tube nut
and back the bolt out of the hole.
Remove tube nuts after obtaining
sufficient clearance.
Observe extreme care to
avoid damaging the spar cap
and the surface finish of the
holes through the spar cap.
CAUTION
