Cleaning, Inspection And Repair Of Main Landing Gear - Piper Lance II Service Manual

LANCE II SERVICE MANUAL
8. The aft support fitting (1) may be removed by holding the nuts in position,
reaching through the access opening, and removing the fitting attachment bolts.
9. The forward support fitting (16) may be removed from the arm of the housing
by removing the bolt and washer from the base side of the fitting. Slide the fitting from the
arm. Remove washer (52) from the arm.
d. Either bearing (53 or 54) installed in the support fittings may be removed by
removing the snap rings (2) that hold the bearing in the housing. Push the bearing from the
housing.
7-23. CLEANING, INSPECTION AND REPAIR OF MAIN LANDING GEAR.
a. Clean all parts with a suitable dry type cleaning solvent.
b. Inspect the gear components for the following unfavorable conditions:
1. Bolts, bearing and bushings for excess wear, corrosion and damage.
2. Gear housing, side brace links, torque links and attachment plates for cracks,
bends or misalignment.
3. Downlock hook for excessive wear of the bearing surfaces.
c. Inspect the gear downlock spring for the following:
1. Excessive wear or corrosion, especially around the hook portion of the spring. -A
spring should be rejected if wear or corrosion exceeds one-quarter the diameter of the
spring. Clean away all corrosion and repaint.
2.
Check the spring for load tensions below minimum allowable tolerance. The
minimum tension of the spring is 48 pounds pull at 7.9 inches. Measurement is taken from the inner
side of each hook.
d. Check the general condition of each limit switch and its actuator, and wiring for
fraying, poor connections or conditions that may lead to failures.
e. Check side brace link through center travel by attaching the upper and lower links,
setting them on a surface table, and ascertaining that when the stop surfaces of the two links
touch, linkage is not less than .062 nor more than .125 of an inch through center. Should
the distance exceed the required through center travel and bolt and bushings are tight,
replace one or both links.
f. With side brace links assembled and checked, ascertain that when stop surfaces of
the two links contact, the clearance between each downlock hook and the flat of the
downlock pin is not less than 0.010 of an inch. Should clearance be less than that required,
the hook only may be filed not to exceed a gap of more than 0.025 of an inch. The
maximum allowable clearance between each hook and the downlock pin that are service
worn is 0.055 of an inch. Should clearance be more than 0.055 of an inch, replace the pin,
check clearance and then if still beyond tolerance, replace hooks. The gap between each
hook should be equal.
g. Repair of the landing gear is limited to reconditioning of parts such as replacing
components, bearings and bushings, smoothing out minor nicks and scratches and repainting
areas where paint has chipped or peeled.
Revised 6/15/79
LANDING GEAR AND BRAKE SYSTEM
1K10