Piper Cherokee Six - Page 266

6-8.
ASSEMBLY
OF
NOSE
GEAR
OLEO.
(Refer
to
Figure
6-1.)
a.
Ascertain
that
all
parts
are
cleaned
and
inspected.
b.
To
install
the piston
tube
plug,
proceed
as
follows:
1. Lubricate
thetube
plug(19)
and "O"
ring(18)
with
hydraulic
fluid
(MIL-
H-5606)
and
install
the
"O"
ring
on the
plug.
2.
Lubricate
the inside
wall of
the
piston
tube,
and
insert
the
plug
into
the
top of
the tube,
pushing
it to
the fork
end.
3.
Align
the bolt
holes
of
the
fork,
tube
and
plug;
install
the
bolt,
washer
and
nut.
c. Carefully
install
in
the bearing
sleeve
the
quad
ring
(14),
back-up
washer
(15)
and
the
wiper
strip
(16).
Slide
the
"O" ring
(13) in
place
on
the
outside
of
the sleeve.
d.
Lubricate
the bearing
assembly
and
carefully
install
it on
the piston
tube
(17).
e. Position
the
snap
ring
(11)
on
the
upper
end
of
the piston
tube.
f .
Insert
the piston
tube
with
bearing
assembly
inthe
cylinder
tube
(9).
Secure
it with
the
retainer
ring
(10)
in the
annular
slot
at
the
bottom
of
the tube.
g.
Connect
the
torque
links
on
the
tube
and
fork
securing
them
with
a
bolt,
washer
and
nut.
Tighten
the
nuts
only
tight
enough
to
retard
side
play,
but
still
allowing
the
links
to
rotate
freely.
h.
Ascertain
that
the upper
and
lower
bearings
(3
and
5) are
installed
in
the
strut
housing.
Bearings
are
a press-fit
with
the
grooves
in the
inner
and
outer
races
in
the up
position.
i
. Position
washer
(2)
and
strut
assembly
retainer
nut
(1)
on
top
of the
strut
housing.
Insert
the
strut
assembly
up
through
the washer
until
it
contacts
the
nut.
Tighten
the
nut
to
a
snug
fit.
j
. To
install
the
steering
horn
assembly,
insert
the
flat
head
pin
through
the
side
of
the
horn
and
top
of
the
strut
assembly.
When
it
protrudes
through
the
other
side
of
the
steering
horn,
install
the
washer
and
secure
with
a cotter
pin.
k.
Install
the
steering
horn
attaching
bolt
through
the
top
of
the
horn
into
the
strut
assembly.
Do
not
tighten
bolt
at
this
time.
If
a space
appears
between
the
steering
horn
plate
and
the
top of
the
strut
assembly,
it
will
then
be necessary
to
install
spacer
washer(s),
(AN960-416L),
between
the
horn
and
strut.
Then
tighten
the
bolt
and
safety
the
bolt
to the
strut
assembly
retainer
nut
(1)
with
MS20995C40
wire.
I .
Compress
and
extend
the
strut
several
times
to
ascertain
that
the
strut
will
operate
freely.
The
weight
of
the
gear
wheel
and
fork
should
allow
the
strut
to
extend.
m .
Service
the
oleo
strut
with
fluid
and
air.
(Refer
to
Oleo
Struts,
Section
II.)
n.
Check
the
gear
for
alignment.
(Refer
to Alignment
of
Nose
Landing
Gear,
paragraph
6-12.)
LANDING
GEAR
AND
BRAKE
SYSTEM
Issued:
8/17/72
PIPER
CHEROKEE
SIX
SERVICE
MANUAL
2A14