TM 55-1520-240-23-9
11-77
ASSEMBLE PILOT’S COCKPIT CONTROL ASSEMBLY
(Continued)
11-77
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 control box assembly.
Ensure plate and all associated
hardware is properly installed.
Ensure spring tab is facing aft.
Ensure proper attaching hardware is
installed attaching each arm assembly
to the pedal shaft including 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.
FLIGHT SAFETY PARTS
This is an installation critical flight
safety part. All aspects of its assembly
and installation must be ensured.
Ensure pedal adjustment lever
assemblies move freely and all
associated hardware including
impedance bolt, plate, guide, pin and
lever return spring, eye bolt, and pedal
pivot shafts are properly and securely
installed.
After installation of the post assembly,
ensure free unrestricted operation
after engagement of the locking pin
into mating drive arm through the
entire range yaw control motions.
Loose attachments within flight control
primary linkage will degrade aircraft
control. Missing components will
cause loss of control.
133.
Position arm (154) and post (179) between arms
(15 and 277), with post outward and up.
134.
Slide bushing (275) through post (179), arm
(154), and arm (277) until it bottoms.
135.
Turn bushing (275) to align holes with holes
in arms (154 and 210). Use soft faced pliers
between arms (210 and 15).
136.
Install bolt (278), two washers (279 and 280) and
nut (281) in arm (210) and bushing (275).
137.
Torque nut (281) to 60 to 90 inch-pounds.
Install cotter pin (282).
138.
Install two bolts (283 and 284), four washers
(285, 286, 287, and 288), and two nuts (289 and
290) in arm (154).
139.
Torque two nuts (289 and 290) to 30 to 60
inch-pounds. Install cotter pins (291 and 292).
140.
Repeat steps 129 thru 139 for left arm and pedal
assembly.
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