Piper Cherokee Six - Page 271

PIPER
CHEROKEE
SIX
SERVICE
MANUAL
6-13.
MAIN
LANDING
GEAR.
6-14.
DISASSEMBLY
OF
MAIN
GEAR
OLEO.
(Refer
to
Figure
6-5
or
6-6.)
The
main
gear
axle
(19)
and
piston
tube
assembly
(18)
may
be
removed
from
the
cylinder
housing
(9)
with
the
gear
removed
from
or
installed
on
the
airplane.
The
metering
components
of
the
gear,
located
in
the
top
of
the
housing,
may
be
removed
only
with
the
gear
removed
from
the
airplane.
a.
Place
the
airplane
on
jacks.
(Refer
to
Jacking,
Section
II.)
b.
Place
a
drip
pan
under
the
main
gear
to
catch
spillage.
c.
The
gear
axle
and
piston
tube
assembly
may
be
removed
by
the
following
procedure:
1.
Remove
the
air
from
the
oleo
chamber
by
depressingthe
air
valve
core
pin
found
in
the
inspection
hole
on
top
of
the
wing.
After
the
pressure
in
the
oleo
chamber
has
diminished,
remove
the
valve
core
pin,
attach
a
small
hose
to
the
air
valve,
and
drain
the
fluid
by
slowly
compressing
the
piston
tube.
If
it
is
desirable
to
extract
more
fluid
from
the
chamber,
remove
the
filler
plug,
insert
a
siphon
hose
and
drain
fluid
from
the
upper
area
of
the
housing.
2.
Disconnect
the
flexible
brake
line
at
the
elbow
on
the
brake
assembly.
3.
Disconnect
the
torque
link
assembly
by
removing
any
one
of
the
three
cotter
pins,
nuts,
washers
and
bolts.
Note
arrangement
of
the
components
for
reinstallation.
Carefully
slide
the
piston
tube
from
the
cylinder
housing.
4.
The
scraper
ring(15)
located
inside
the
lower
end
of
the
cylinder
hous-
ing
may
be
removed
by
first
removing
the
retainer
ring
(17),
spacer
ring
(16)
and
then
the
scraper
ring.
5.
The
"O"
ring
seal
(14)
located
just
above
the
scraper
ring,
may
be
re-
moved
byusing
a
curved
wire
or
spoon
shaped
tool
and
inserting
it
under
the
ring.
d.
To
remove
the
metering
components,
located
in
the
upper
portion
of
the
cylinder
housing,
the
housing
must
first
be
removed
from
the
spar
assembly
as
described
in
paragraph
6-17.
There
are
two
types
of
housing
and
metering
com-
ponents
used,
and
these
may
be
removed
by
the
following
procedure:
NOTE
To
distinguish
the
two
types
of
oleo
housing
with
their
metering
components,
part
numbers
have
been
caston
the
housings
and
should
be
used
when
referring
to
the
landing
gear
for
parts
and
service.
The
following
in-
formation
will
be
helpful
in
locating
these
numbers.
The
number
65319
is
cast
on
one
type
housing
below
the
lower
spar
attachment
flange
and
onthe
other,
the
number
65441
is
located
between
the
upper
and
lower
attachment
flanges.
LANDING
GEAR
AND
BRAKE
SYSTEM
Issued:
8/17/72
2A19