Nose Landing Gear; Nose Gear Oleo Disassembly; Nose Gear Oleo Cleaning, Inspection And Repair - Piper PA-24 Comanche Service Manual

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PIPER
COM:\~CHE
SERVICE
MA~L\L
fI-~. ~ose
landing Gear.
fI-fl.
Disassemble Of :\ose Gear Oleo. (PA-24-1l'<() and Pf\-24-250. Serial
'o~.
24-1 to 24·214 inclu-ive.t
t
Rctcr to
r
igurc e-L) ThL' nove gl'ur oleo a......ernbly may be removed and di. . . assembled from the gear
llk,l
hou-ing \\ ith the gear removed from or installed on the
airplane.
a. Place the airplane on jacks. (Refer to Jacking. Section 11.)
h.
Place a drip pan under the gear to catch spillage,
c. Remme the air and fluid Irorn the oleo. To do this. depre...s the air valve core pin (4) until -trut
prc-vure ha. . . diminished. remove the filler plug (5). and with a small ho . . . e siphon as much hydraulic fluid
from the strut as po. . . sible.
d.
To remove
the pi. . . ton tube
a
ernbly (12) from the oleo housing
IJI. remove
the upper
(Ul
and
100\er ( 15) torque link connecting bolt as crnbly (14) and separate the links. xote the upper and lower torque
link- and
t
hc number of . . . pacer
w
a. . . her between the two links.
e. Cornprc- ... the pi. . . ton tube (
J
2). reach up along the tube and release the snap ring (J
J
I
from the
annular . . .
lot
at
the bottom
of the oleo housing.
f. Pull the pi. . .
t
on tube \\ ith component part- from the cylinder housing.
g.
The
ri . . .
ton
t
ube
component-
may
be
removed by reaching in the tube and pu...
hing
nut
t
he upper
bearing rcta
i
ner
pin . . . (241. Slid
e off
the upper bearing
(25).
spacer
(26).
lower bearing
(:!7)
with in
ne
rand
outer
"0" ring ... I ~4 and 2~1. \\
iper e9). \\
u...her (30) and snap ring
(3
J).
h. To rcmov e the orifice tube
(:!
II from the oleo housing. remove the locknut ( I) and \\ asher (2
l
from
the top of
t
he
hou ... ing. Draw the tube
with
"0"
ring
(20)
and back-up washer
(19)
from the
hou-ing.
i.
Th L' orifice plate (22\ is removed from the bottom of the orifice tube bv relea..ing the - nap nng
123)
that hold,
t
hc
plate
in
position
i. T
l)
r
cmov
I.'
t he pi-ton tube plug
(~~l
\\ ith "0" ring (33) located in the lower end of the tube. rcrnnv c
the holt a"emhly and in. . . ert a rod up through the hole in the body of the fork
(181.
pu..hing the plug out
through thL' tl)P
01
the tube.
fl-~.
Cleaning. Inspection And Repair Of :\ose Gear Oleo.
a.
Clean all part- wit h a . . . unable quick drying type cleaning solvent.
h. In..pcct the landing gear oleo as..ernbly component for the following:
I
Bearing and hu . . . hing . . . for excess wear. corrosion. scratches and overall damage.
... Retaining
pin~
for wear and damage.
. ~ . l.ock ring . . . for cracks. burrs. etc.
4.
C~
linder and orifice tube for corrosion. scratches.
nick-
and excess
wear.
5. Orifice plate for hole restriction.
t»,
For], tube for corrosion. scratches. nicks. dents and misalignment.
Air valve general condition.
l'o.
Worn or broken turning limit stop....
If the no-e \\ heel turning limit stops are found broken or have been
broken in the pa . . .
t.
the entire system including the following items
should he checked to insure proper rudder action and condition:
(al Check rudder hinges. pulleys and pulley brackets.
(hI Check rudder rigging and cable tension per instructions in
Section \ of thi . . . manual.
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RE\'ISED:
~/
10/81
IH23
lA~DI~G
CEAR .-\.:\D BRAKE S\'STE\1