Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 1214 / 1956

PAGE 4
Feb 28/07
6I6
55-20-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(4) After balancing the tool, reattach it to the control surface per Figures 1 and 2. Keep the beam
positioned 90° from the control surface hinge line.
(5) Determine balance of control surface by sliding movable weight along the balance beam.
(6) Read the scale when the bubble level has been centered. Multiply by three to determine inch-
lbs. (i.e. - Since the movable weight weighs three pounds, every inch it is moved from the
center of the beam equals three inch-lbs of force.)
2. Elevator Trim Tab Push Rods Attach Brackets
If the elevator trim tab push rods attach brackets are removed and replaced or reinstalled, ensure that a
coat of wet zinc chromate primer is applied between the tab skin and the brackets to eliminate surface
corrosion.
3. Elevator Trim Tab Rods Corrosion Control
Each five years, remove the elevator trim tab rods from the airplane and inspect as shown in Figure 3
for corrosion and condition. Repair/replace as required. When inspection and repair/replacement is
completed, reapply Dinitrol AV 8 (P/N 89500-800) Corrosion Inhibiting Compound.
NOTE: For all fittings, inspection of the exposed portion is sufficient unless obvious or extensive
corrosion is apparent.
NOTE: Any part exhibiting flaking of the metal due to rust must be replaced. The elevator trim tab
actuator push rods must be replaced if rust is evident extending from inside the tubes.
A. When inspection and repair or replacement are completed, apply Dinitrol AV 8 to elevator trim tab
actuator push rod tubes.
CAUTION: READ PRECAUTIONS ON CONTAINER LABEL AND WEAR A CHARCOAL FILTER
MASK WHEN APPLYING DINITROL AV 8.
B. Apply Dinitrol by spraying or brush. Use an air or airless spray gun if available. A hand aspirator
bottle may be used if a sufficient fan spray pattern can be developed. Product should not be
thinned.
C. Spray directly into mating points. Pour inside the lower (curved) elevator trim tab actuator push rod
tubes until full and drain.
D. Apply to approximately .8 mils in thickness. Avoid puddling and running. Allow to dry (6 to 8 hours)
before reinstalling elevator trim tab rods.