Piper Comanche PA-24 Service Manual page 335

PIPER COMANCHE SERVICE MANUAL
•. Camp ..... the piston tube (8), reach up &long the tube and rei....., th. snap
n".
(29) from the
annular sloe ae the bottom of the oleo housins.
f. Pull th. piston tube with compon.ne partS from the cylinder housinJ.
g. Th. piseon tube components may b. removed by reaching in the tube and pushint oue the upper
bearing r.tainer pins (13). Slid. off the upper beann, (lZ), lower bearinl (14) with "0" rinp (1' uid 26),
wiper (27), w .. ber (18) and
snap
n".
(19).
h. To remove th. orific. tube (19) from th. oleo bousin •. remove th.locknue (2) &lid washer (13)
from the eo!, of the housing. Draw the cUbe with back-up
n".
(14), "0" ring (15) and ring (16) (PA-24-400
only) from th. housing.
1.
Th. orific. plat.
(17)
is removed from the bottom of th. orifice tube
(19)
by releuing the snap
rin. (18) that holds the plae. in position. Expand and remove the
n".
(16) from the lower end of the tube.
j. To remove th. piston cube plug (11) with "0"
n".
(10) locaccd in the lower .nd of the piston
tube (8), remove the bole .... mbly (9) and inICrc • rod up through th. hole in th. body of th. fork
(1),
pushing the plu. oue through the eop of the tube.
6-29. Ciani""Inspection And Ilcpair Of MaiD
Gar Oleo.
•. Clean all partS with a suitable dry type <leaning solvent.
b. Inspect th.landing...,. 01.0 assembly compon.ne for th. following,
1. B.arinp and bushinp for .xcess wear, corrosion, scratches
and
overall dam ....
2.
Retainint pins for wear and dam ....
3. Lock rinp for cracks, bum, etc.
4. Cylinder
and
orifice cube for corrotion, scraech .. , nickJ and .xcesa wear.
,. Orifice plae. for hal. restriction.
6. Fork tube for cOrTOsion, scraech .. , nicks, dena and misaliJnment.
7.
Air valve I"neral condition.
<.
Repair of th. oleo is limited eo smoothing oue minor scraeches, nicks and d.na and replac.m.nt of
para.
d. Individu&l replac.ment of wiper smps may be accomplish.d per instructions given in parqraph
6-+0.
6-30. Assembly Of Main Gar
Oleo. (R.f.r to FilUre 6-8 )
.. Ascertain thae all para are cleaned and inspeceed.
b. To install th. piseon tube plug (21). fine lubricae. the plug "0" ring (20) witb hydraulic fluid
(MIL-H-'606) and inscalJ ie on th. plug. Lubricae. eh. inside wall of eh. piseon tub. (8). Insect the plug intO
the tOP of the tube and push ie to the fork end. Align the bolr holes of the fork, tube and plug. and install
bole assembly (9).
(If •
new tube (8) is insealled th.t has not been drilled, press the cube ineo the fork
housing unci! ie bottoms. Using the fork bole holes as a lUid •. dri1J a piloe hal. and ream to 0.2'0/0.252
through each side of ehe tube wall. Remove bum from the inside of tbe tube and flush the tub. with a
suitable solvenc
[0
remove a.ll metal panicles.
c. If desired. cement a. cork in the hole in the bottom of the foric. body
[0
prevent din from entering
between the fork and tube.
d. To .... mbl. the componenes of the orifice rube (19), inserc the oriflc. plae. (17) into the bonom
of the cube and secure with snap nng (18). Install ring (16) (PA-24-400 only) on the lower end oi the rub •.
c. To install the orifice tube in the oleo hOUSing
(7).
insert the tube up through the housing With the
end of the tube exposed through the tOP of the housing, install the "0" nng (1'), back·up ring
(1~).
washer
(13). and locknue (12), Tighten locknur only finger tight at thIS ume.
LANDING GEAR AND BRAKE SYSTEM
ISSUED: 8/18/72
1117