Wing Installation - THRUSH S2R – G10 Maintenance Manual

AIRCRAFT MAINTENANCE MANUAL
drive the nut flush to the lower splice
fitting. Proceed in a similar manner
with the remainder of the bolts
working from the smallest to the
largest.
I. Remove all of the nuts and tube nuts
from the lower NAS bolts. Place the
aluminum block on the threaded end
of the smallest bolt and with the 4X
rivet gun, drive it flush with the lower
splice fitting. Proceed in a similar
manner with the remainder of the
bolts working from the smallest to the
largest.
J. Using a suitable phenolic or soft
metal drift, drift out the NAS bolts
from the lower splice fittings and
lower spar cap with a 2X rivet gun
working from smallest size bolt to
largest size.
K. Pry the lower half splice fitting off the
NAS bolts by tapping phenolic, hard
plastic or aluminum wedges between
the lower splice fitting and the lower
spar cap. Remove the lower half of
the lower splice fitting. In a similar
manner, remover the upper half of
the lower splice fitting.
L. Place the aluminum block on the
threaded end of the smallest bolt in
the upper splice fitting and with a 4X
rivet gun, drive it flush with the spar
cap. Proceed in a similar manner
with the remainder of the bolts
working from the smallest to the
largest.
WARNING!
UNDER NO CIRCUMSTANCES
SHOULD THE
TURNED WHILE
THREADS ARE IN THE SPAR
CAP. THIS COULD DAMAGE
THE HOLE SURFACE FINISH
AND RESULT IN A STRESS
CONCENTRATION.
Effective: 03/26/2010
THRUSH AIRCRAFT, INC – MODEL S2R-G10
BOLTS BE
THE
M. Remove all of the nuts and tube nuts
from the upper NAS bolts. Place the
aluminum block on the threaded end of
the smallest bolt and with the 4X rivet
gun, drive it flush with the upper splice
fitting. Proceed in a similar manner with
the remainder of the bolts, working from
the smallest to the largest.
N. Using a suitable phenolic or soft metal
drift, drift out the NAS bolts from the
upper splice fittings and upper spar cap
with a 2X rivet gun working from
smallest size bolt to largest size.
O. Pry the lower half splice fitting off the
NAS bolts by tapping phenolic, hard
plastic or aluminum wedges between
the lower splice fitting and the upper
spar cap. Remove the lower half of the
upper splice fitting. In a similar manner,
remover the upper half of the upper
splice fitting.
P. Remove the bolts securing the center
wing splice plate to the right wing. The
splice plate will remain attached to the
left wing.
Q. Slide the wings directly away from the
fuselage lifting the wing roots sufficiently
to clear the fuselage lower longerons.
R. Discard all used
washers.

WING INSTALLATION

(See Figures 7-11 through 7-14)
To install the wings, proceed as follows
using all new nuts, tube nuts, bolts and
washers:
* NOTE *
Coat all bolt shanks with Snap-
On™ General Purpose Anti-seize
lubricant, or equivalent, prior to
installing. Be careful, however,
not to get anti-seize on bolt
threads, as this invalidates torque
readings.
nuts, bolts and
7-19
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