Piper PA-32R-301T SARATOGA S, Maintenance Manual

Page: 490 / 956

MAIN GEAR (Cont.)
CLEANING, INSPECTION AND REPAIR OF MAIN GEAR OLEO
1. Clean all parts with a suitable dry type cleaning solvent.
2. Inspect landing gear oleo assembly components for following:
a. Bearings and bushings for excess wear, corrosion, scratches and overall damage.
b. Retaining pins for wear and damage.
c. Lock rings for cracks, burrs, etc.
d. Cylinder and orifice tube for corrosion, scratches, nicks and excess wear.
e. Orifice plate for hole restriction.
f. Fork tube for corrosion, scratches, nicks, dents and misalignment.
g. Air valve general condition.
3. Repair of oleo is limited to smoothing out minor scratches, nicks and dents and replacement of parts.
ASSEMBLY OF MAIN GEAR OLEO
(Refer to Figure 1)
1. Determine that all parts are cleaned and inspected.
2. To install piston tube plug, first lubricate plug o-ring with hydraulic fluid (MIL-H-5606A) and install it
on plug. Lubricate inside wall of tube. Insert plug into top of tube and push it to fork end. Align the
bolt holes of fork, tube and plug, and install bolt assembly.
3. If desired, cement a cork in hole in bottom of fork body to prevent dirt from entering between fork and
tube.
4. To assemble components of orifice tube, insert orifice plate into bottom of tube and secure with snap
ring.
5. To install tube in oleo housing, insert tube up through housing. With end of tube exposed through top
of housing, install o-ring, retainer, washer, and locknut. Tighten locknut only finger tight at this time.
6. Assemble components of piston tube on tube by placing, in order, snap ring, washer, lower bearing
with outer and inner o-ring and upper bearing. Align two .125 diameter holes and lock pin holes with
corresponding holes in piston tube and install pins.
7. Lubricate wall of cylinder oleo housing and tube, and carefully insert tube assembly into housing,
guiding orifice tube into piston tube. Install wiper strip, slide washer into position and secure assembly
with snap ring.
8. Tighten locknut at top of housing.
9. Ascertain that bushings are installed in upper and lower torque links and then install links. Torque link
bolt assemblies should be lubricated and installed with flat of bolt head hex adjacent to milled stop of
wide end of link. (Use same thickness of spacer washers between two links as those removed to maintain
correct wheel alignment.) Tighten bolts only tight enough to allow no side play in links, yet be free
enough to rotate.
– NOTE –
Instructions contained in step 10 pertain to left oleo strut
assemblies only.
10. Assemble squat switch actuator bracket on bolt assembly. Insert a rivet through hole provided in
bracket into upper link and install nut. Install squat switch bracket immediately above actuator bracket.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
32-10-00
Page 32-16
Reissued: July 1, 1993
3B9