Piper PA-24 Comanche Service Manual page 197

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PIPER COMANCHE SERVICE MANUAL
m. To remove the piston tube plug (37) with "0"
rinK
(36) located in the lower end of the piston
rube. remove the bolt assembly (1 S) and insert a rod up throUlh the hole in the body of the fork (17). Push
the plug out through the tOP of the tube.
6-10. C1CUliDt.lmpectioD ADd Repair Of No. Gar OAeo.
a.
Clean all partS with a suiuble dry type
clcaninl
solvent.
b. Inspect the landing JCu oleo assembly component for the foUowinJ:
1. Bearinp and bushinp for cxcm wear. corrosion. scratcna and overall Jamaac.
2. Retaining pins for wear and damqe.
3.
Lock rinp for cracks. bum. etc.
4-. Cylinder and orifice tube for corrosion. scratches. nicks and excess wear.
S. Upper and lower cylinder bushinp loose or
tw1linJ
in cylinder.
6. Orifiee plate for hole restriction.
7. Fork rube for corrosion. scratches. nicks. dents and misalilnment.
8. Air valve pnera! condition.
c. Repair of the oleo is limited to smoothinS out minor scratches. nicks and dents and replacement of
parts.
d. Individual replacement of the wiper saip may be ICcomplished per instructions Jiven in paragraph
640.
6-11. A.uembly Of Note Gar Oleo. (PA-24-180 and PA-2~250.
Serial Nos.
2~215
and up; P.'\-24-260
and PA-2~0.) (Refer
to
Fipre 6-2.)
a. Ascertain that partS arc cleaned and inspected.
b.
To insWl the piston rube plug (37), flnt lubricate the Nbc plug and "0"
ring (36) with hydraulic
fluid (MIL-H-S606). and install the "0"
ring
on the piUJ. Lubricate the inside WIll of the piston tube (H).
insen the plug intO the rep of the rube and push it to the fork end. Alien the bolt holes of the fork
(Ii).
tube and plug. and
install
bolt (CT) (IS) with wuhm (51) and nut (30). (If a new rube (35)
is
to be
installed that has not been drilled. press the tube intO the fork piston housing (17) until it bottoms. Using
the bolt holes in the fork body as a guide. drill a pilot hole and ream to 0.250/0.252 through each side of
the tube wall. Remove bum from the inSlde of the tube and flush the tube: WIth a suitable solvent to
remove aU mew partides:)
c. If desired. cement a cork in the hole in the bottom of the fork body to prevent dirt from enterinJ
between the fork and tube.
d. To assemble the components of the orifice tube (34). inscn the orifice plate
(oW)
intO the bottom
of the tube, and secure with the snap rin, (41). Lubricate and install the "0" ring
t38) on the upper end of
the tube. Install nng (39) (PA-24-400 only) on the lower end of the tube.
e. Insert the orifice tube
(34)
up through the bottom of the cylinder (33:. With the tube exposed
through the top of the cylinder. install the lock wuhcr (24) and insert roU pin (23) through the lock washer
IntO the evlinder. Insull the tube locknut (22) only fmF tight at this time.
f. The fork (17) and tube
(3 S)
assembly may be assembled by insu.lling the tube components on the
tube. In order slide onto the tube. the snap"nt
(~9).
washer (4-8),lowcr bearing
(.w)
with inner and outer
"0" nngs (·H and -46) and upper bearings (4-3>.
AJ.isn
the lock pin holes in the lapper beanng with the pin
holes In the piston tube (
35)
and install pins (42).
LANDING GEAR AND BRAKE SYSTEM
ISSUED: 811Snt
113