TM 55-1520-240-23-9
11-191
INSTALL SECOND STAGE MIXING ASSEMBLY
(Continued)
11-191
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 adjacent shaft.
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.
13.
Position forward input bellcrank (23) in bellcrank
(17), long arm (24) aft.
14.
Clean shaft (25). Use cloth (E120).
FLIGHT SAFETY PARTS
This is an installation critical flight
safety part. All aspects of its assembly
and installation must be ensured.
Ensure that all associated spacers,
washers, and bushings are installed.
Ensure MS21025-20 nut is tightened
using proper installation procedure to
prevent excess torque application to
the associated components.
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.
Do not strike or drive shaft into
bellcranks. Damage to bellcrank
bearings will result.
15.
Slide shaft (25) down through bushing (21),
bellcrank (23), and bushing (19). Shaft shall be
flush with bushing (19). Remove tags.
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