TM 55-1520-240-23-9
11-185
INSTALL YAW, THRUST, PITCH, OR ROLL INTERMEDIATE CONNECTING
LINKS
(Continued)
11-185
Make sure bushings are in bellcranks
before installing bolts or component
damage will result.
NOTE
Procedure is same to install yaw,
thrust, pitch or roll intermediate
connecting links. Pitch connecting link
is shown here.
Impedance bolts are installed in flight
control connections. These bolts are
self-retaining and require a special
nut and torque (Task 1-13).
1.
Remove nut (1) two washers (2 and 3), and bolt
(4) from bellcrank (5).
FLIGHT SAFETY PARTS
This is an installation critical flight
safety part. All aspects of its assembly
and installation must be ensured.
Ensure that both rod end jam nuts are
installed and torqued.
Ensure that the rivet through the fixed
rod end insert and rod end bearing
is secure.
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.
2.
Position pitch intermediate connecting link (6) in
bellcrank (5). Install bolt (4), two washers (3 and
2), and nut (1). Do not tighten at this time.
3.
Remove nut (7), two washers (8 and 9), and bolt
(10) from bellcrank (11).
4.
Position link (6) in bellcrank (11) on inside of lug
(12). Install bolt (10), two washers (9 and 8) and
nut (7).
5.
Torque two nuts (1 and 7) to 30 to 45
inch-pounds. Install two cotter pins (13 and 14).
6.
Check two bolts (4 and 10). Bolts shall not rotate
with torque less than 10 inch-pounds. There
shall be no axial looseness. If bolt rotates or is
loose, add washer under nut, and repeat step 5.
INSPECT
FOLLOW-ON MAINTENANCE:
Perform neutral rig check of flight control system
(Task 11-33).
Perform operational check of flight control system
(TM 55-1520-240-T).
Install forward transmission drip pan (Task 2-3).
Install closet backup panel (Task 2-2).
Install closet acoustic blanket (Task 2-108).
END OF TASK
11-727/(11-728 blank)
