Piper SEMINOLE PA-44-180, Maintenance Manual

Page: 454 / 881

4. Place the airplane on jacks. (Refer to Chapter 7.)
5. Level the airplane laterally and longitudinally. (Refer to Chapter 8.)
6. From the center point of the tail skid, extend a plumb bob and mark the center point on the floor.
7. Extend a chalk line from the mark on the floor below the tail skid to a point approximately three feet
forward of the nose wheel. Allow the line to pass under the wheel at the centerline of the tire. Snap the
chalk line.
8. Clamp the rudder pedals to align them in a lateral position. Ascertain that the rudder pedals are in their
neutral position. (Refer to Figure 32-10.)
9. Adjust the rod end bearings of each steering control rod to align the nose wheel with the chalk line and to
bring the rudder pedals into neutral angle fore and aft.
10. Install the steering push rods on the pilot's rudder pedals. Adjust the rods so the lengths are both the same
and the rudder pedals are at their neutral position.
11. To align the nose wheel straight forward, stand in front of the nose gear and align the center rib of the tire
with the chalk line, or lay a straight edge along the side of the tire and parallel the straight edge with the
chalk line.
12. Install the nose wheel bungee in its neutral position (no load on the bungee springs.) Adjust bungee rod ends
as necessary.
13. Place a bubble protractor against a rudder pedal steering tube to check the neutral angle as shown in Figure
32-11 .
14. One end of each rod must be disconnected and the jam nuts loosened to make any adjustments. Do not
attempt to make the adjustment by means of one rod end bearing, but divide the adjustment between the
bearings at each end of each rod. Check that the rod ends have sufficient thread engagement by ascertaining
that a wire will not go through the check hole in the rod. Reinstall the rods and tighten the jam nuts.
15. To check the nose gear steering for its 30° + 1° maximum right and left travel, mark on each side of the nose
wheel an angle line from the centerline and wheel pivot point. Turn the wheel to its maximum travel in both
directions to check for allowable travel. Should travel be exceeded in one direction and not enough in the
other direction, check for possible damage to the gear fork or torque links.
NOSE GEAR DOOR.
REMOVAL OF NOSE GEAR DOOR. (Refer to Figure 32-12.)
1. Disconnect the retraction rod assembly from the door by removing nut and washer from each door half.
2. The doors may be removed by removing the hinge pins from each door.
3. The operating mechanism may be removed by removing the bearing blocks on each side of the wheel well.
— Note —
The operating mechanism may be further disassembled as necessary.
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
3 2 - 2 3 - 0 1
Page 32-37
Revised: May 15, 1989
2H5
PIPER AIRCRAFT