Piper Arrow IV, Руководство по обслуживанию

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6. Extend the gear and connect the two gear tension springs between the attachment point on the oleo
housing and the spring arm.
7. Ascertain that the landing gear is lubricated per Lubrication Chart, Chapter 12.
8. Check adjustment of the gear.
9. Install engine cowling. (The cowl support jacks located at each forward side of the nose gear door
hinges are adjusted down to contact the cowl surface after attaching screws are secure.)
10. Retract landing gear and check door operation as per Adjustment of Nose Gear Doors.
11. Check the alignment of the nose gear per Alignment of Nose Landing Gear.
12. Ascertain that the landing gear is down and locked, then remove the airplane from jacks.
ADJUSTMENT OF NOSE LANDINC GEAR. (PA-28RT-201) (Refer to Figure 32-6.)
The gear up stop is located just above the gear door retraction roller near the lower aft end of the engine.
1. Remove the engine cowl.
2. Place the airplane on jacks. (Refer to Jacking, Chapter 7.)
—NOTE—
Inspect the nose landing gear link and brace assembly, the aft
attachment end of the nose actuator and the right front hat
section fairing for cracks and loose rivets. Dye penetrant may be
required. If any of these parts are cracked, remove and replace in
accordance with the latest revisions of Piper Service Bulletin 724.
3. Loosen the jam nut on the hydraulic actuator rod end bearing and disconnect from downlock hook.
4. Set rod end bearing mid way between witness hole and full engagement and reinstall on downlock
hook.
5. Loosen the jam nut on the gear up stop, and turn stop in as far as possible.
6. Carefully retract the landing gear by turning the master switch on, raising the emergency gear
extension lever and moving the gear selector handle to the UP position. Retain the emergency extension lever
in the UP override position.
7. Ascertain that the actuator piston bottoms before any part of the gear mechanism contacts adjacent
parts. Place a carpenters square with the longest end along the bottom of the fuselage, and the shortest end
running up through the centerline of the wheel axle. Measure up along the square from the bottom of the
fuselage 5.80 ± .l2 inches. If this measurement is incorrect, adjust piston rod end to obtain this range.
8. With gear retracted and rigged to 5.80 ±.12 inches, adjust the gear up stop against the upper drag link
finger tight. Lower gear and adjust the gear up stop an additional one half turn and tighten jam nut.
9. Move gear selector handle to the DOWN position. With gear down and locked, check to ensure that
some additional actuator rod travel is available by removing rod end bolt and pulling the piston until it
bottoms.
10. Check to ensure that rod end threads cover witness hole in the actuator rod.
11. Tighten jam nut on rod end bearing and complete hookup of piston rod and bearing to downlock hook.
12. Cycle gear, including free-fall and final dimensional check of 5.80 ±.12 inches.
13. Adjust shimmy dampener by turning nose wheel against stops and adjusting the rod end of the
dampener for adequate travel to both extremes.
14. Install engine cowling, retract landing gear and check door per Adjustment of Nose Gear Doors.
15. Ascertain that the gear is down and locked, then remove the airplane from jacks.
32-20-07
Page 32-31
Revised: July 13, 1983
2E14
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL