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Figure 2-13. Longitudinal Leveling
2-14.
LEVELING. All configurations of the airplane are provided with a means for longitudinal and lateral
leveling. The airplane may be leveled while on jacks, during the weighing procedure while the wheels
are on scales, or while the wheels are on the ground. To level the airplane for purpose of weighing or
rigging, the following procedure should be used:
NOTE: Always level the airplane laterally first, then level the airplane longitudinally.
a.
Level the airplane laterally as follows:
1.
Ascertain that the landing gear is blocked to the specified strut extensions as stated in step a, 2.
2.
Set a bubble protractor at five degrees and place it on a straightedge held along the front spar
on the under surface of the wing as shown in Figure 2-14. Do not place the straightedge on any
rivet heads.
3.
Raise or lower the wing by inflating or deflating the main gear tires or adjusting either jack,
until the bubble is centered indicating a five degree dihedral of the wing which will level the
fuselage.
4.
Check the opposite wing with the protractor to ascertain it also has a five degree dihedral.
b.
Level the airplane longitudinally as follows:
1.
Ascertain that all tires are inflated to normal pressures.
2.
Block the nose gear to obtain 2.50 inches of strut extrusion and the main gear to obtain 6.50
inches of strut extrusion.
3.
Partially withdraw the two leveling screws located on the right side of the fuselage forward of
the stabilator as shown in Figure 2-13.
4.
Place a spirit level on the heads of the screws.
5.
Level the airplane by inflating or deflating the nose wheel tire or adjusting the jacks until the
bubble on the level is centered.
07/15/06
PIPER AZTEC SERVICE MANUAL
1C23
Figure 2-14. Lateral Leveling
II - HANDLING AND SERVICING
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