Piper Arrow IV, Maintenance Manual

Page: 398 / 752

ADJUSTMENT OF NOSE GEAR DOORS.
1. Adjust PA-28RT-201 nose gear doors as follows:
A. Place the airplane on jacks. (Refer to Jacking, Chapter 7.)
B. Adjust the door retraction rods so that the gear will swing through the door opening with a .12 ±
.06 of an inch clearance between the gear and door at their closest point. This can best be done
with the nose gear down, tension springs disconnected and operating the nose gear manually.
C. With door clearance adjusted, adjust the link between the roller assembly and bellcrank assembly
so that the doors will pull up tightly when gear is full up. Over-tightening may result in door
buckling, however, if the link is too loose, doors will gap in flight.
D. Check all rod ends for adequate thread engagement, for safety and tightness of jam nuts.
E. Remove the airplane from jacks.
2. Adjust PA-28RT-201T nose gear doors as follows:
A. Place the airplane on jacks. (Refer to Jacking, Chapter 7.)
B. Gear up stop must be properly adjusted per Adjustment of Nose Landing Gear (PA-28RT-201T)
before rigging doors.
C. Adjust the door actuator rods to fully close doors in the gear up position.
D. Check all rod ends for adequate thread engagement, for safety and tightness of jam nuts.
E. Remove the airplane from jacks.
WHEELS AND BRAKES.
REMOVAL AND DISASSEMBLY OF NOSE WHEEL. (Refer to Figure 32-12.)
1. Jack the airplane enough to raise the nose wheel clear off the ground. (Refer to Jacking, Chapter 7.)
2. To remove the nose wheel, first remove the cotter pin and washer that secures the safety clevis pin of
the wheel nut. Next remove the clevis pin, wheel nut and then slide the wheel from the axle.
3. The wheel halves may be separated by first deflating the tire. With the tire sufficiently deflated,
remove the wheel through bolts. Pull the wheel halves from the tire by removing the wheel half opposite the
valve stem first and then the other half.
4. The wheel bearing assemblies may be removed from each wheel half by first removing the snap rings
that secure the grease seal retainers, and then the retainers, grease seals and bearing cones. The bearing cups
should be removed by tapping out evenly from the inside.
INSPECTION OF NOSE WHEEL ASSEMBLY.
1. Visually check all parts for cracks, distortion, defects and excess wear.
2. Check tie bolts for looseness or failure.
3. Check internal diameter of felt grease seals. Replace the felt grease seal if surface is hard or gritty.
4. Check tire for cuts, internal bruises and deterioration.
5. Check bearing cones and cups for wear and pitting and re-lubricate.
6. Replace any wheel casting having visible cracks.
32-40-02
Page 32-40
December 1, 1978
2E23
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL