Piper Cherokee Six - Page 272

PIPER
CHEROKEE
SIX
SERVICE
MANUAL
1. Cylinder
Housing
65319:
(Refer
to Figure
6-5.)
(a)
Cut
safety
wire
and
remove
the
bolts
that
secure
the
cylinder
head
(4)
with
metering
tube
(6) in
the
top of
the housing.
Remove
the assembly
from
the housing.
(b) The
orifice
assembly
(8)
may be
removed
from
within
the
housing
by
rotating
it counterclockwise
out
of the
housing
with
the
use
of a .50
x .125
stud
type
spanner
wrench.
Do
not remove
orifice
unless
it necessitates
replacement.
2. Cylinder
Housing
65441:
(Refer
to Figure
6-6.)
(a) Cut
safety
wire
and
remove
the bolts
that
secure
the
head
assembly
(4)
on
the top
of the
housing.
Remove
assembly
with
components
from
the
housing.
(b) The
head
assembly
may
be
disassembled
by turning
the head
(4)
and the
orifice
plate (8)
from
the orifice
tube (7).
6-15
CLEANING.
INSPECTION
AND
REPAIR
OF
MAIN
GEAR
OLEO
a Clean
all
parts
with
a suitable
dry
type
cleaning
solvent.
b.
Inspect
the landing
gear oleo
components
for
the following:
1.
Bearing
surfaces
of
housing
for
excess
wear,
corrosion,
scratches
and overall
damage.
2. Retaining
ring for
cracks, burrs, etc.
3. Cylinder tube
for corrosion,
scratches, nicks,
excessive wear and
misalignment.
4. Air valve for operation
and general
condition.
5. Orifice plate
for hole restriction.
c. Repair
of the
oleo
is limited
to
smoothing
out minor
scratches,
nicks
and
dents,
and
replacement
of parts.
6-16. ASSEMBLY
OF
MAIN
GEAR OLEO.
(Refer to
Figure
6-5 or
6-6.)
a. Install
the metering
components
within
the upper
portion
of the gear
housing.
Of
these,
there
are two
types
of housings
and metering
components
identified
by a casting
number
on the
housing
and
by the
distinct
shape
and size
of the
metering
components
as
shown
in Figures
6-5
and 6-6.
The metering
components
may be
installed
as follows:
1. Cylinder
Housing
65319:
(Refer
to Figure
6-5.)
(a)
Lubricate
with
hydraulic
fluid
(MIL-H-5606A)
and install
an "O"
ring (7)
in
the
annular
slot
in the
metering
orifice
(8).
(b) Insert
the orifice
through
the opening
in the top
of the gear
housing and
turn
it into
the threaded
hole web.
Tighten
the orifice
with the
use of
a stud type
spanner
wrench.
Revised:
7/29/77
LANDING
GEAR
AND
BRAKE
SYSTEM
2A20