Piper Comanche PA-24 Service Manual page 322

PIPER COMANCHE SERVICE MANUAL
g. Lubricate the inner wall of the cylinder (33) with hydraulic fluid. Carefully insert the piston
tu~_
assembly into the bottom of the cylinder, allowing the orifice tube to guide itself into the piston tube, until trw
snap ring (49) can be installed in the annular slot at the bottom of the cylinder.
h. At the top of the cylinder (33), tighten the orifice tube locknut (22).
1.
Install wiperstrip (47), slide washer (48) into position and secure assembly with snap ring (49).
j. Ascertain that bushings are installed in the upper and lower torque links (4 and I) and then install
both links.
NOTE
Ascertain that the torque links are properly installed to insure
complete travel of the piston tube and fork assembly within the oleo
housing.
The torque link bolt assemblies should be lubricated and installed with the flat of the bolt head hex adjacent
10
the milled stop on the wide end of the link. Tighten the bolts only tight enough to allow no side play in the link,
yet be free enough to rotate.
k. Ascertain that the upper and lower oleo housing bushings (20 and 32) are installed. Install the
cylinder into the oleo housing and secure with snap ring (19).
I. At the top of the oleo housing, install on the cylinder the aligner guide bracket (18) and steering arm
(28). Install cap bolts (7), tighten to 30 to 35 inch pounds torque and safety with MS20995C40 wire (6).
m. InstaU the Shimmy dampener (13) using bolts, washers and nuts (12) and safety with cotter pin.
n. Lubricate the gear assembly. (Refer to Lubrication Chart, Section II.)
o. Compress and extend the strut several times to ascertain that the strut will operate freely and torque
links do not restrict travel in the compressed position. The weight of the gear wheel and fork should allow the
strut to extend.
p. Service the oleo strut with fluid and air. (Refer to Oleo Struts, Section Il.)
q. Check the nose gear for alignment (refer to paragraph 6-16) and gear operation.
6-12. Removal of Nose Landing Gear. (Refer to Figure 6-3.)
a. Disconnect the gear door actuating rod and air intake hoses at the bottom cowl.
b. Remove the bottom cowling by removing attaching screws and brackets.
c. Place the airplane on jacks. (Refer to Jacking, Section Il.)
d. Remove the down limit switch (29 or 43) from the left drag link (28) by removing switch attaching
nut and electrical straps. The electrical wires may remain connected.
e. Disconnect the retraction transmission by pulling up on the release lever.
f. Retract the landing gear by using the emergency extension lever, until it hangs in the neutral
position.
g. Disconnect the nose gear door actuating rods from their mounting brackets by removing attaching
nuts and washers.
h. Partially retract the landing gear until the nose gear push-pull rod attaching bolt (26) clears the
wheel well and then remove bolt.
i. Partially retract nose gear and remove downlock spring(s) (33) by removing nut(s), washer(s) and
bolt(s) securing the spring attachment link(s) to the drag link cross brace (30).
j. Push up on the nose gear door actuating arms and remove bolts (22) securing the upper left (28) and
right (18) drag links to the gear mount. Note spacer washers (21) between drag links and mount.
K. Remove cotter pins, nuts, washers and bolts (9 and 20) from the strut housing attaching arms and
gear mount. Note the number of spacer washers (8 and 19) between the strut attaching arms and the gear
mount.
I. Remove strut assembly and drag links from wheel well.
114
LANDING GAER AND BRAKE
sysn.e
REVISED: 4/10/81