Piper Comanche PA-24 Service Manual page 402

6-107. Landing Gear Manual Extension System 1000 Hour Inspection.
Each 1000 hours time-in-service, inspect the Landing Gear Manual Extension System as follows:
a. Place the airplane on jacks. (Refer to paragraph 2-10.)
b. Disconnect each gear from the actuator. (Refer to paragraphs 6-46 and 6-47.) Also disconnect the
past center locking springs.
c. Inspect all components for condition and wear. (Refer to paragraph 6-48 and Tables VI-III and VI-
IV for wear limits.)
d. Inspect rod ends for wear by clinching the bearing between a bolt and nut arrangement as shown in
Figure 6-41, and using a dial indicator measure the total free play between the ball and race, the
maximum service limit is .005 of a inch.
e. Check the thru center travel of both the left and right drag links on the nose gear. (Refer to
paragraph 6-13 and Figure 6-3.)
NOTE: Insure that both nose gear drag links contact their stop simultaneously. (Refer to paragraph
6-15, Step "h".)
f. Check the thru center travel of each main gear side brace link (Refer to paragraph 6-32 and Figure
6-8a.)
g. Install the downlock springs on the nose gear. If only one spring is used, obtain Piper Service Kit
761-082 for additional spring installation. (Refer to paragraph 6-14 for installation instructions.)
h. Disconnect and inspect main gear push-pull cable prior to installation (Refer to paragraph 6-48.)
i. Hookup both main gears and check manual retraction only. (Transmission not connected.) (Refer to
paragraph 6-50.) Coordinate the overcenter locks. (Refer to paragraph 6-55.)
j. Hookup the nose gear (refer to paragraph 6-49) and rig to operate with the main gear. (Transmission
not connected.) Coordinate the overcenter locks. (Refer to paragraph 6-56.)
NOTE: At this point the landing gear is now in a downlocked serviceable condition, without the
benefit of the transmission.
k. Perform a landing gear retraction load test per paragraph 6-58.
l. Perform a retraction and extension cycle of the landing gear electrically. Make the necessary limit
switch adjustments per information given in paragraphs 6-51 thru 6-67.
m. Insure that the landing gear is down and locked; then remove the airplane from jacks. Make the
appropriate logbook entries.
VI - LANDING GEAR AND BRAKE SYSTEM
PIPER COMANCHE SERVICE MANUAL
1L12
04/01/09