TM 55-1520-240-23-9
11-78
ASSEMBLE COPILOT’S COCKPIT CONTROL ASSEMBLY
(Continued)
11-78
INSTALL ROLL AND THRUST TRANSFER
BELLCRANKS
34.
Install bushing (79) in fitting (80) of support (2).
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 that all bushings are properly
installed (including orientation) in
the output and input clevises of the
bellcrank assembly.
Ensure bellcrank hub bearings are
serviceable and properly installed.
Ensure associated bellcrank
assembly and pivot axis hardware
including shaft, spacers, plugs, and
bushings, are properly installed so
as not to prevent free rotation of the
component.
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.
35.
Position bellcrank (69) on fitting (80) lower side,
arm (74) up and inward.
36.
Slide shaft (81) through bellcrank (69) and
bushing (79) until flush with bushing.
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 that all bushings are properly
installed (including orientation) in
the output and input clevises of the
bellcrank assembly.
Ensure bellcrank hub bearings are
serviceable and properly installed.
Ensure associated bellcrank
assembly and pivot axis hardware
including shaft, spacers, plugs, and
bushings, are properly installed so
as not to prevent free rotation of the
component.
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.
37.
Position bellcrank (57) on fitting (80), arm (61) up
and aft. Slide shaft (81) through bellcrank until
flush.
11-388
