CHAPTER 27
PAGE 17
PAGE DATE: 17. March 2014
MAINTENANCE MANUAL EXTRA 330LX
27-20-00 RUDDER CONTROL
(Refer to figure 14) The rudder pedals (1) are connected via
a cable system (2) to the bottom hinge bellcrank (3). The
cables are guided by fairleads (6). Springs (9) keep the
cables under tension when they are not operated. As an
option the rear pedals are electrically adjustable. The rudder
(4) is mounted at three points in spherical bearings pressed
into a aluminium hinge resp. into aluminium hinge arms. For
lightning protection reasons each hinge (arm) is grounded to
the corresponding attachment bracket at the rudder by bond-
ing leads. A travel stop plate is located at the bottom hinge
bracket. A second safety stop is located at the rudder pedal
bearing having the only purpose of protecting the lower
brake system fitting in case of rudder cable failure.
I M P O R T A N T This second stop must not be reached under normal
operation conditions. Misalignment or excessive elon-
gation of the rudder cables will result in misuse of this
second stop and a subsequent overload of the rudder
bearing. An subsequent inflight failure of the footrest
could occur.
To prevent flutter the rudder is mass balanced. The mass
balance weight of the rudder is installed in the rudder horn.
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