TM 55-1520-240-23-9
11-88
INSTALL COCKPIT CONTROL TRANSFER BELLCRANKS
(Continued)
11-88
INSTALL THRUST TRANSFER BELLCRANK
9.
Hold bellcrank (8) against support (6). Slide
shaft (3) about 3 inches through bellcrank. Move
bellcrank to assist sliding of shaft.
FLIGHT SAFETY PARTS
This is an installation critical flight
safety part. All aspects of its assembly
and installation must be ensured at
each joint connection and mounting to
the airframe.
Ensure proper orientation of bellcrank
output arms.
Ensure that all bushings are properly
installed (including orientation) in
each input and output clevis of the
bellcrank.
Ensure bellcrank hub bearings are
serviceable and properly installed.
Ensure proper attaching hardware
(impedance type bolt, nut, and
washers) is installed including
verification of bolt head orientation,
torque, and installation of cotter pins.
Loose attachments within flight control
primary linkage will degrade aircraft
control. Missing components will
cause loss of control.
10.
Slide thrust transfer bellcrank (12) on shaft (3),
short arm (13) forward, and long arm (14) down,
until bottomed on bellcrank (8). Move bellcrank
(12) to assist sliding.
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