Cleaning, Inspection And Repair Of Nose Landing Gear 3E15 - Piper PA-31-350 Maintenance Manual

PIPER AIRCRAFT
T-1020
MAINTENANCE MANUAL
7. The uplock rod or cable may be removed by removing the nut from the actuating cylinder support
bolt and sliding the rod or cable off the bolt. Retain the bolt in place to support the cylinder.
8. The uplock hook may be removed after the removal of the uplock rod or uplock cable and blow-
down actuating rod and the hook pivot bolts. Remove the hook with the uplock spring.
-NOTE -
The idler link, uplock rod or cable and uplock hook may also be
removed with support tube as one unit.
9. To remove the support tube first remove the up limit switch and wire support clamps. Hold the
support nuts within the nose section, loosen the support bolts and remove tube.
10. The gear housing attachment plates may be removed by grinding the rivet heads flush with the plate
and removing the rivets.
11. The upper drag links attachment plates may be removed by holding the attachment nuts within the
nose section and loosening the support bolts.
CLEANING, INSPECTION AND REPAIR OF NOSE LANDING GEAR.
1. Clean all parts with a suitable cleaning solvent.
2. Inspect the landing gear assembly components for the following unfavorable conditions:
A. Bolts, bearings, bushings and ball joints for excessive wear, corrosion and damage.
B. Gear housing, drag links, idler link, rods and attachment plates for cracks, bends or mis-
alignment.
C. Downlock spring for wear, corrosion and not returning to complete compression.
D. Uplock hook for wear and oversized bearing surfaces.
E. Uplock roller for freedom of movement and minimum wobble.
F. Both uplock rods sliding surfaces for corrosion, freedom of movement and lubrication.
G. Uplock rod or cable and end bearings for corrosion and freedom of movement. Also inspect
the sliding surfaces of the uplock rod.
H. General condition of limit switches.
1. Wiring for fraying, poor connections or conditions that may lead to failures.
3. Attach the upper and lower drag links and check that when stop surfaces touch, linkage is .063 to
. 156 inch through center. Should this distance exceed the required through center travel and bolt and bushings
are tight, replace one or all drag links.
4. The shimmy dampener requires no service other than routine inspection. In case of damage or mal-
function, the dampener should be replaced rather than repaired.
5. Repair to the landing gear is limited to reconditioning of parts such as replacing bearings and bush-
ings, smoothing out minor nicks and scratches, repainting of areas where paint has chipped or peeled and
replacement of pans.
32-22-02
Page 32-25
3E15
Revised: July 3, 1984 3E15