Piper Cherokee Six - Page 47

*PIPER
CHEROKEE
SIX
SERVICE
MANUAL
2.
Attach
one
end
of
a
clear
plastic
hose
to
the
valve
stem
of
the
filler
plug
and
submerge
the
other
end
in
a
container
of
hydraulic
fluid.
Ascertain
that
the
end
of
the
hose
on
the
valve
stem
is
tight
and
the
fluid
container
is
approximately
equal
in
height
to
the
top
of
the
strut
housing.
3.
Fully
compress
and
extend
the
strut
thus
drawing
fluid
from
the
fluid
container
and
expelling
air
from
the
strut
chamber.
By
watching
the
fluid
pass
through
the
plastic
hose,
it
can
be
determined
when
the
strut
is
full
and
no
air
is
present
in
the
chamber.
4.
When
air
bubbles
cease
to
flow
through
the
hose,
compress
the
strut
fully
and
remove
the
hose
from
the
valve
stem.
5.
With
the
strut
compressed,
remove
the
filler
plug
to
determine
that
the
fluid
level
is
visible
up
to
the
bottom
of
the
filler
plug
hole.
6.
Reinstall
the
core
in
the
filler
plug
and
apply
thread
lubricant
(Parker
6PB)
to
the
threads
of
the
filler
plug
and
install
the
plug
in
the
top
of
the
strut
housing.
Torque
the
plug
to
45
foot-pounds.
Second
Method:
1.
Remove
the
filler
plug
from
the
top
of
the
strut
housing.
2.
Raise
the
strut
piston
until
it
is
fully
compressed.
3.
Pour
fluid
from
a
clean
container
through
the
filler
opening
until
it
reaches
the
bottom
of
the
filler
plug
hole.
4.
Install
the
filler
plug
finger
tight,
and
extend
and
compress
the
strut
two
or
three
times
to
remove
any
air
that
may
be
trapped
in
the
housing.
5.
Remove
the
filler
plug,
raise
the
strut
to
full
compression
and
fill
with
fluid
if
needed.
6.
Apply
thread
lubricant
(Parker
6PB)
to
the
threads
of
the
filler
plug.
Reinstall
the
filler
plug
and
torque
to
45
foot-pounds.
e.
Clean
off
overflow
of
fluid
and
inflate
the
strut
as
described
in
Paragraph
2-36.
f.
Check
that
fluid
is
not
leaking
around
the
strut
piston
at
the
bottom
of
the
housing.
2-35a.
FILLING
MAIN
GEAR
OLEO
STRUT
(PA-3-260
and
300).
To
fill.
with
ffud.
main
gear
oleo
strut
that
is
partly
full
or
that
has
been
completely
emptied.
proceed
as
follow
s:
a.
Raise
the
airplane
on
jacks
until
the
landing
gear
torque
link
assembly
has
almost
reached
its
full
travel.
(Refer
to
Jacking,
Paragraph
2-11.)
b.
Place
a
pan
under
the
gear
to
catch
spillage.
c.
If
not
previously
accomplished,
remove
the
cap
on
top
of
the
wing
to
gain
access
to
the
top
of
the
strut
housing,
and
relieve
air
from
the
strut
housing
chamber
by
removing
the
cap
from
the
air
valve
and
depressing
the
valve
core.
d.
Remove
any
one
of
the
three
torque
link
bolts,
and
again
raise
the
airplane
until
a
minimum
of
ten
inches
(do
not
exceed
twelve
inches
of
tube
exposure)
of
strut
tube
is
exposed
with
the
wheel
remaining
on
the
ground.
With
this
amount
of
tube
exposed.
it
will
allow
fluid
to
flow
from
the
middle
chamber
to
the
bottom
chamber
of
the
strut
housing
insuring
that
the
bottom
chamber
is
filled
with
fluid.
NOTE
With
the
torque
links
disconnected,
the
piston
tube
is
free
to
slide
from
the
strut
housing.
e.
Fill
the
main
gear
housing
by
one
of
two
methods
which
are
as
follows:
Revised:
7/28/75
HANDLING
AND
SERVICING
1B23