Piper Aircraft Corporation PA-28-161 CADET, Руководство по обслуживанию

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7-9. ASSEMBLY OF NOSE GEAR OLEO. (Refer to Figure 7-1.)
a Ascertain that all parts are cleaned and inspected.
b. To install the piston tube plug, proceed as follows:
1. Lubricate the tube plug (21) and O-ring (20) with hydraulic fluid (MIL-H-5606) and install the O-ring
on the plug.
2. Lubricate the inside wall of the piston tube, and insert the plug into the top of the tube, pushing it to the
fork end.
3. Align the bolt holes of the fork, tube and plug; install the bolt, washer and nut.
c. Carefully install in the bearing sleeve the quad ring (15), back-up washer and the wiper strip (16). Slide
the O-ring (14) in place on the outside sleeve.
d. Lubricate the bearing assembly and carefully install it on the piston tube (24).
e. Position the snap ring (18) on the upper end of the piston tube.
f. Insert the piston tube with bearing assembly in the cylinder tube (10). Secure it with the retainer ring (17)
in the annular slot at the bottom of the tube.
g. Connect the torque links on the tube and fork securing them with a bolt, washer and nut. Tighten the nuts
only tight enough to retard side play, but still allowing the links to rotate freely.
h. Ascertain that the upper and lower bearings (3 and 5) are installed in the strut housing. Bearings are a
press fit with the grooves in the inner and outer races in the up position.
i. Position washer (2) and strut assembly retainer nut (1) on top of the strut housing. Insert the strut assembly
up through the washer until it contacts the nut. Tighten the nut to a snug fit.
j. To install the steering horn assembly, insert the flat head pin through the side of the horn and top of the
strut assembly. When it protrudes through the other side of the steering horn, install the washer and secure with a
cotter pin.
k. Install the steering horn attaching bolt through the top of the horn into the strut assembly. Do not tighten
bolt at this time. If a space appears between the steering horn plate and the top of the strut assembly, it will then
be necessary to install spacer washer(s), (AN960-416L), between the horn and strut. Then tighten the bolt and
safety the bolt to the strut assembly retainer nut (I) with MS20995C40 wire.
1. Compress and extend the strut several times to ascertain that the strut will operate freely. The weight of
the gear wheel and fork should allow the strut to extend.
m. Service the oleo strut with fluid and air. (Refer to Oleo Struts, Section II.)
n. Check the gear for alignment. (Refer to Alignment of Nose Landing Gear, Paragraph 7-13.)
7-10. REMOVAL OF NOSE LANDING GEAR. (Refer to Figure 7-2.)
a. Remove the engine cowling by the following procedure:
1. Release the fasteners, two on each side and six screws at the aft end of the top cowl.
2. Remove the screws on the sides of the nose cowl.
3. Lift the top cowl with the upper nose cowl attached and remove the assembly from the airplane.
4. Disconnect the electrical lead to the landing light at the quick disconnect inside the bottom cowl and
remove the induction air hose from filter housing.
5. Remove strut fairing if installed, by removing attaching screws.
6. Remove the bottom cowl attaching screws from around the aft end of the cowl and remove the bottom
cowl with the lower nose cowl attached.
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989 LANDING GEAR AND BRAKE SYSTEM
1H23