Rudder Balance - Piper PA-44-180 SEMINOLE Maintenance Manual

A400
LOCATE TOOL
BALANCE POINTS
DIRECTLY OVER
HINGE CENTERLINE.
BALANCE
WEIGHT
RUDDER - STATIC
BALANCE LIMITS (IN. - LBS.)
LEADING LEADING
EDGE EDGE
HEAVY LIGHT
-10 -26

RUDDER BALANCE.

The rudder has been statically balanced at the time of the installation at the factory and normally should not
require rebalancing. Where possible the rudder was set with the balance weight on the heavy side of the limits to
permit limited repair or paint touch-up without adjusting the balance weight. It should be noted, however, that
spare rudders are delivered unpainted and the static balance will not necessarily fall within the limits provided.
The completed rudder including paint should be within the limits given in Figure 55-5. If the rudder is not to be
painted, the balance weight will probably require adjustment. All replacement rudders or rudders that have been
repainted or repaired should be rebalanced according to the procedures given in this chapter. The static balance
of the rudder must be within the limits specified in the figure referenced above.
Before balancing any control surface, it must be complete including tip,trim/servo tabs as applicable and tab
actuating arms or push rods with bearings as applicable and all optional equipment which is mounted on or in the
control surface when it is flown, including paint, position lights and wiring, static wicks, scuff boots, etc.
If optional equipment is added or removed after balancing, the control surface must be rebalanced. During
balancing, trim/servo tabs must be maintained in the neutral position.
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
BALANCING TOOL (REFER TO CHAPTER 91)
Figure 55-5. Rudder Balancing
3B16
TAP TRIM TAB
INTO NEUTRAL
POSITION
BOTTOM
FAIRING
INSTALLED
5 5 - 4 3 - 0 0
Page 55-07
Revised: May 15, 1989