TM 55-1520-240-23-9
11-53
RIG FORWARD UPPER BELLCRANKS (Continued)
11-53
CAUTION
Do not stand, kick, or induce lateral
loads to the thrust idler. A cracked
arm will cause in-flight failure resulting
in disconnecting the thrust cockpit
driver actuator (CCDA) and the
droop eliminator potentiometers
(Without 74 ) or thrust control position
transducer (With 74 ).
CAUTION
Bushings must be in bellcranks before
installing bolts; otherwise, damage to
components will result.
NOTE
Impedance bolts are installed in flight
control connections. These bolts are
self-retaining and require a special
nut and torque (Task 1-13).
1.
Working in passageway, install first stage rig pin
(T44) (1) through fitting (2), four bellcranks (3, 4,
5, and 6), and fitting (7). Pin must slide freely. If
not, rig first stage bellcranks (Task 11-51), then
repeat step 1.
2.
Remove pin (1) from fitting (2).
3.
Working from forward left work platform, install
second stage rig pin (T135) (8) through support
(9), four bellcranks (10, 11, 12, and 13), and
fitting (14). Pin must slide freely. If not, rig
second stage bellcranks (Task 11-51), then
repeat step 3.
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