TM 55-1520-240-23-9
11-247
INSTALL AFT FUSELAGE IDLER BELLCRANKS
(Continued)
11-247
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
each input and output clevis of the
bellcrank.
Ensure bellcrank hub bearings are
serviceable and properly installed.
Ensure ALBI fire retardant coating is
properly applied to each bellcrank
assembly.
Ensure proper orientation of the
bellcrank assembly.
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.
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
each input and output clevis of the
bellcrank.
Ensure bellcrank hub bearings are
serviceable and properly installed.
Ensure proper orientation of the
bellcrank assembly.
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.
Make sure bushings are in bellcranks
before installing bolts or damage will
result to bellcranks.
NOTE
All bolts installed in flight control
system are self-retaining impedance
bolts. During installation of flight
controls, make sure all bolts used are
self-retaining bolts.
1.
Remove tags and position two idler bellcranks (1)
in support assembly (2), with pads (3) right.
11-960
