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THRUSH AIRCRAFT, INC – MODEL S2R-R1340
CLEANING, INSPECTION AND REPAIR
OF SHOCK STRUTS
Ref. Figure 6-1
A. Remove top and bottom attaching
bolts, and remove complete shock
strut assembly from aircraft.
B. Support strut under fork end and
slide a 1-1/2 inch ID sleeve over
slotted end. Apply light pressure to
sleeve, sufficient to relieve pre-load
from biscuits.
C. Remove bolt holding biscuit retainer
and disassemble unit.
D. Clean all parts with a suitable type
cleaning solvent.
E. Inspect rubber shock biscuits for
distortion, splits or deterioration.
Replace as required.
F. Inspect welds for cracks.
G. Inspect bolt holes for elongation.
H. Inspect all areas for evidence of
corrosion.
I.
Repair of shock struts is limited to
replacement of parts, smoothing out
minor nicks and scratches and
repainting areas where paint has
chipped or peeled.
*NOTE*
Upper shock strut attach
bolt is close tolerance,
heat treated NAS bolt.
Do not replace with AN
type bolt.
MAIN WHEELS AND BRAKES:
GENERAL DESCRIPTION
Ref. figure 6-2
The divided type wheels (including tail
wheel) are machined castings, consisting
of two sections called wheel halves. The
wheel
halves,
which
together
by
bolts
interchangeable, and the complete wheel
assemblies
are
Effective: 01/01/08
AIRCRAFT MAINTENANCE MANUAL
are
secured
and
nuts,
are
interchangeable
according to wheel size.
wheels
operate
bearings that rotate in hardened steel
races pressed into each wheel half. A
brake disc assembly is bolted to the
wheel
and
turns
Applying pressure to the rudder-brake
pedals individually controls the hydraulic
brakes attached to the main landing
gear. Movement of a rudder-brake pedal
operates the corresponding master brake
cylinder, attached to the aft side of the
rudder pedals, and applies pressure to
the appropriate brake. The brakes are
self-adjusting, easily checked for wear,
and can be quickly overhauled by field
activities.
MAIN WHEEL REMOVAL AND
DISASSEMBLY
To remove and disassemble a main
landing gear wheel, proceed as follows:
A. Jack aircraft as outlined in Section 2.
B. Remove valve-core and deflate tire
completely.
C. Remove bolts and washers from
back plates of brake assembly and
remove back plates.
D. Remove hubcap snap ring, hubcap,
cotter pin, nut, washer, bearing and
wheel assembly from landing gear.
E. Break tire bead from wheel by using
a mallet (do not use tire irons).
F. Remove bolts, washers and nuts and
separate wheel halves. Guard valve
stem
to
avoid
removing tire and tube.
G. Remove brake disc from brake side
of wheel. If disk sticks, pry out disc
using non-metallic instrument.
H. Remove bearing retainer snap ring,
grease seal ring, and grease seal,
spacer
and bearing cone from
inboard side of wheel.
The MLG
on
tapered
roller
with
the
wheel.
damage
while
6-3
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