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A
rApanEesŒp
i
rOFo
S
ia
TGD
4
3)SHOCK STRUT
3/32
a.
Remove
the
air
valve
cap and depress
the
valve
core
to
release
the
air inside
the
strut
14
5/16
DOWDEL
Do not unscrew
the
air valve assembly
until all
BRAZED
BEARING
air
pressure
has
been
released
or
it may
be
AN6227-81
O-RING
blown off with considerable
force
and cause
in-
jury
or damage.
CYLINDER
b.
Remove
the
snap ring
(with gear
assembly
in up-
right position)
and
remove
the
plug and "O" ring by lift-
DOWEL
ing
the
piston
thus
exerting
internal
pressure
on
the
plug.
Figure
5-2.
Shock
Strut
"O" Ring Installation
c.
Invert
the
strut
and drain
the
fluid.
d.
Disconnect
the torque
knees
at
the
joint
and remove
INSPECTION
AND
PARTS
REPLACEMENT
the
shimmy dampener.
e.
Remove
the
air valve
assembly.
a.
Check all
the
metal
parts
of
the
strut
assembly
for
cracks,
weld breaks
and
corrosion.
Replace
worn
or
f.
Loosen
the
rebound
control
assembly
retaining
nut
defective
parts.
Clean parts
with
solvent,
Specification
with
a
socket
wrench,
inserting
a
long screwdriver
PD-680;
remove
solvent
and,
to
ease reassembly,
apply
through the top
of
the
barrel
assembly
to
hold
the
slot-
specification
MIL-H-5606
hydraulic
fluid
to
all friction
ted
head of
the
rebound
control
assembly
pin.
surfaces.
o.
Pull
the
rebound
control
assembly
out of
the
top
b.
If fluid leaks
are observed
on
top
of
the
air valve
of
the
barrel
assembly.
assembly,
check
the
small
"O" ring of
the
valve assem-
bly;
then
look for
defects
m
the
valve.
h. Slide
the
piston
and
fork assembly
out
of
the
bottom
of
the
barrel
assembly.
i. Remove
the
bolts
that
secure
the
collar
to the
barrel
and
slide
the
collar
and shim
(il one is installed),
off
Do not unscrew
the
air valve assembly
until all
the
barrel.
Keep
the
shim with
the
collar
to
avoid
mis_
air
pressure
has been
released
or it may be
placing
it.
blown
off
with considerable
force
and
cause
in-
jury
or damage.
j.
Pull
the
barrel
assembly
out of
the
nose
gear
brace
assembly.
c. If
the
leak
seems
to
be coming from under
the
barrel
end plug,
remove
it and check
the
condition
of
the
large
k.
Remove
the
snap
ring,
adapter
ring
and
scraper
"O"
ring.
ring from
the
barreL
d.
Peel
shim
layers
as necessary
for free
operation
1. Pull
the
felt lubricating
liner
from
the
barrel
as_
but do not
allow
more
than
.012
inch clearance
between
the
strut
collar
and
the
nose
gear
brace.
sembly.
m.
Remove
the
"O" ring from
the
groove
in
the
center
e.
Replace
scored
bushings,
bearings
and pins,
and
brazed
bearing
of
the
barrel
with a piece
of
wire
bent
all gaskets,
packings,
pads and scrapers.
as shown in Figure
5-2.
f. Replace
self
locking
nuts which have lost
their
lock-
n.
Remove
the two
small
felt pads,
one
in
the top
ing
ability and
all cotter
pins.
groove
and one in
the
bottom
groove
inside
the
nose
gear
brace
assembly,
g.
Replace
any other part
considered
to
be worn or
damaged
beyond
serviceable
limits.
NOTE
NOSE SHOCK
STRUT
WEAR
TOLERANCES
(Airplane
prior
to
Serial
TD-403)
These
two
small
felt pads
were
installed
on the
early
model 95
airplanes
only.
They were omit-
Listed
below are
manufacturing
tolerances
which will
ted
on later
production
models
when
they
were
aid
in
determining
the
extent of
wear.
Exactly
how much
found
to
be
unnecessary.
They may be
discarded
deviation
from
these tolerances
can be allowed
must
upon
disassembly,
be
determined
by
the
performance
of
the
strut.
5-3
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