Piper SARATOGA PA-32-301 Maintenance Manual page 323

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
NOSE GEAR OIL ORIFICE RETAINER RING INSTALLATION. (Refer to Figures 32-3 and 32-4.)
1. With the piston tube and fork removed from the cylinder, ascertain that all traces of the old retainer
ring are removed from the metering tube.
2. A tool can be fabricated to simplify the installation of the new retainer ring. (Refer to Chapter 91.)
3. With the use of the fabricated tool. position the new retainer ring on the end of the tool with the
locating stud.
4. Insert the tool into the cylinder. with the centering stud positioned into the hole in the base of the
metering tube.
5. Hold the tool tightly against the metering tube and slide the sleeve of the tool towards the metering
tube. This will move the new retainer ring over the end of the metering tube and position itself into the groove
of the metering tube.
ASSEMBLY OF NOSE GEAR OLEO. (Refer to Figure 32-3.)
1. Ascertain that all parts are cleaned and inspected.
2. To install the piston tube plug. proceed as follows:
A. Lubricate the tube plug and O-ring with hydraulic fluid (MIL-H-5606) and install the O-ring on
the plug.
B. Lubricate the inside wall of the piston tube. and insert the plug into the top of the tube. pushing it
to the fork end.
C
Align the bolt holes of the fork. tube and plug: install the bolt. washer and nut.
3. Carefully install in the bearing sleeve the quad ring. back-up washer and the wiper strip. Slide the
O-ring in place on the outside of the sleeve.
4. Lubricate the bearing assembly and carefully install it on the piston tube.
5. Position the snap ring on the upper end of the piston tube.
6. Insert the piston tube with bearing assembly in the cylinder tube. Secure it with the retainer ring in the
annular slot at the bottom of the tube.
7. 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.
8. Ascertain that the upper and lower bearings are installed in the strut housing. Bearings are a press fit
with the grooves in the inner and outer races in the up position.
9.
Position washer and strut assembly retainer nut 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.
10. To install the steering horn assembly. insert the hex bolt 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 nut.
11. 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 with MS20995C40 wire.
12. 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.
13. Service the oleo strut with fluid and air. (Refer to Chapter 12.)
14. Check the gear for alignment. (Refer to Alignment of Nose Landing Gear.)
32-21-04
Page 32-11
Revised: August 11, 1983
2C6