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

Page: 1212 / 1956

PAGE 2
Feb 28/07
6I4
55-20-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
Balancing Elevator
Figure 1
D. Balancing Equipment
Balancing must be done using a suitable tool capable of measuring unbalance in inch-pounds from
the centerline of the control surface hinge pin. See the tool configuration in Figure 2. Other tool
configurations may be used if accuracy is maintained and recalibration capability is provided.
To use this tool:
(1) Ensure that the control surface is in its final Flight configuration, static wicks, trim tabs, trim tab
push pull rod and control surface tip (as applicable) should be installed. The surface should be
painted and trim/servo tabs should be in the neutral position.
NOTE: Because paint is a considerable balance factor, it is recommended that existing paint
be removed prior to repainting a control surface.
(2) Place hinge bolts through control surfaces and place control surface on a holding fixture.
(3) Calibrate the tool.
(a) Avoiding rivets, place the balancing tool on the control surface with the tool’s hinge
centerline directly over the hinge line of the control surface.
(b) Adjust the movable trailing edge support to fit the width of the control surface. Tighten the
set screw on the trailing edge support.
(c) Adjust the trailing edge support vertically until the beam is parallel with the control surface
chord line.
(d) Remove the tool from the control surface and balance the tool itself by adding or removing
nuts or washers from the beam balancing bolt. When balancing the tool, the movable
weight must be at the bar’s hinge centerline.